Re: MD: Can't record more material
[EMAIL PROTECTED] wrote: Following up on my recent post where I described a suddenly-occuring problem in my JE500 where I can't record more than 4 seconds of material, despite having obvious signal (analog) going to the machine and everything else as it was before the problem began... I have experimented with the following variables, to no avail: + Trying another disk (tried 2 different disks) + Tried a brand new disk (Sony 74) + Trying signal from a different playback device + Letting the machine be powered off overnight (tho not unplugged) + Trying stereo vs. mono Trying a second MD unit (JE520) DID work (:) If anyone thinks there are troubleshooting ideas to apply, I'd appreciate the feedback. It is beginning to appear that the machine has developed a problem requiring service, which leads me to this question: What are some good options for sending this unit in for servicing? Is sending to a Sony Service Center near me the best answer, or are there reliable independent authorized repair alternatives (particularly if any are in the Dallas area would be helpful) to suggest? (The unit is not under warranty.) Thanks for the assistance. Richard Huggins [EMAIL PROTECTED] Looks like your JE500 is broken... Depending on your usage, I would say, it's probably the optical block or the mechanics that's screwing up. Repairing that is probably more expensive than buying a new recorder. Cheers, Ralph -- === Ralph SmeetsFunctional Verification Centre Of Competence - CMG Voice: (+33) (0)4 76 58 44 46 STMicroelectronics Fax:(+33) (0)4 76 58 40 11 5, chem de la Dhuy Mobile: (+33) (0)6 82 66 62 70 38240 MEYLAN E-Mail: [EMAIL PROTECTED] FRANCE === "For millions of years, mankind lived just like the animals. Then something happened which unleashed the powers of our imagination: We learned to talk." -- Stephen Hawking, later used by Pink Floyd -- === - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: better sound?
this is going to possibly sound a bit harsh toward this and i do not mean it with any negative attitude, but when the copying occured from the source to the cd, was there any post digital processing done? what i mean is, was it possibly modified in any way from the original? It leaves out IMO one important question, and that is what was the middle man between these two sources? anyway i'm just being curious, because if there was any processing done, that would say a whole heck of a lot. if not, well i'd be curious to hear the comparison too :) -Original Message- From: Ivica Petrovic [EMAIL PROTECTED] To: MD [EMAIL PROTECTED] Date: Tuesday, May 02, 2000 5:04 AM Subject: MD: better sound? this is an excerpt from British magazine Hi-Fi news record rewiev, May issue "The 1999 Hi-fi show was certainly intriguing...but the van den Hul demo somewhat threw me and I suspect many others as well. Mr. A J Hul was there himself, asking people for their views on the difference in sound between two alternative sources played through BW 802s and his own amplifiers. Everyone in the room agreed the first example seemed preferable, with a fuller, more focused sound. He carried out the comparison several times moreWe still thought the first sounded better, before he went on to tell us, with a wry smile, that we preferred a 16-bit\44.1 kHz CD being played on a Sony SACD player to the original 24-bit 96 kHz master tape on a Nagra D tape deck! What's more, he agreed with us." Comments? And they're talking about "we can't recommended MD format yet"? Maybe master tapes too? - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED] - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
* Ralph Smeets [EMAIL PROTECTED] on Tue, 02 May 2000 | GSM is compressed and encrypted. And not used in the US. We have PCS, which is not encrypted. The header packets are secured using a key exchange mechanism to prevent theft of IDs. -- GSM is used in the US. It is using a different frequency, though. 1900 MHz instead of 900/1800 MHz everywhere else. __ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: 650MB Minidiscs
* pupu [EMAIL PROTECTED] on Tue, 02 May 2000 | I heard about the 650MB MDs a while back, but they weren't in use at that | point. The 640MB MD is MD2. | Though I recently noticed Sony is using them in one of their camcorders. Yes. This is currently the only use of MD2 that I am aware of. There was some thought about using MD2 with PS2, but Sony decided to go with DVD-ROM instead. | This makes me wonder whether Sony (or anyone) is going to use them in | their audio recorders/players. Probably not, which I think is unfortunate. MD2 is strictly a data format at this point in time. -- Rat [EMAIL PROTECTED]\ Happy Fun Ball may stick to certain types Minion of Nathan - Nathan says Hi! \ of skin. PGP Key: at a key server near you! \ - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression (correcting a couple errors)
* "Timothy P. Stockman" [EMAIL PROTECTED] on Tue, 02 May 2000 | I think that a formal compression system implies the capability of | expansion. Sampling at a lower rate throws away information with no hope of | recovery... True for lossless compression. Lossy compression allows for "good enough" reproduction, for whatever "good enough" might be. What is good enough for voice is not nearly good enough for music. -- Rat [EMAIL PROTECTED]\ Happy Fun Ball contains a liquid core, Minion of Nathan - Nathan says Hi! \ which, if exposed due to rupture, should PGP Key: at a key server near you! \ not be touched, inhaled, or looked at. - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
Yeah, fine, whatever. -- Rat [EMAIL PROTECTED]\ Do not taunt Happy Fun Ball. Minion of Nathan - Nathan says Hi! \ PGP Key: at a key server near you! \ - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
MD: MD
Why audio MD can't record data. How can the recorder make the difference between audio data stream and computer data stream? Explain me. - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
re: MD: compression (correcting a couple errors)
1. On the VHS SP vs EP discussion: EP *always* results in inferior quality compared to SP because the helical tracks *overlap* in EP mode (they do not in SP), causing a reduced S/N ratio. 2. On the cellular discussion: Although normal cellular uses analog FM audio transmission (non-compressed), the carrier almost always converts it to digital and use heavy compression between the tower site and the switch. I think that a formal compression system implies the capability of expansion. Sampling at a lower rate throws away information with no hope of recovery... - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
RE: MD: Li-ion Gumstick Battery for MZ-55?
I hesitate to mention this idea, but I have found a cheap source of spare batteries for my MZR90, which will probably fit other models and makes too. Bear in mind that most stages of the process I describe are hazardous. I was given a faulty Motorola NiMH cellphone battery. I broke it open and took out 5 cells, which have the same cross section as a Sony NH14WM (16.5*5mm), but are shorter: 46.5 mm instead of 65.5 mm. As is usual with this type of battery, one of the cell had gone short circuit, and the others still measured ~ 1.2V, so I decided to make the duff cell into an extender to make one of the others the right length. I sawed off the bottom 19mm of the duff cell, and drilled out the electroyte, which came out as a black powder. I then soldered this section onto the end of one of the other cells, using a 100W iron - this is quite tricky - the solder does not want to stick, and it was hard to get the alignment right. The new, extended cell has only about 1Ah capacity, against the 1.4Ah of the original, but is much neater than the screw on external AA cell holder, and can be carried in the little plastic box that the original cell came in. I also have a Mk II design, in which I solder two pieces of springy steel onto the sides of the "extender", so that it will clip on to any of the cellphone cells. These cells can then be charged in my normal AA recharger, as they are a similar length (actually 2mm shorter, and about 3mm wider). Experience seems to indicate that NiMH/NiCd cellphone batteries don't last very long, we have a pile of them at our office, so it should not be too hard to get one to strip. WARNINGS: 1) A dead battery pack can contain fully charged cells which can deliver heavy currents (I melted my living room carpet this way). 2) The contents of a cell may be toxic (especially NiCd), and if there is a residual charge, you may melt the tool. 3) It's not safe to solder to rechargables - they get HOT in the process. 4) When you file off excess solder, the filings contain lead, which is toxic. 5) Using a Frankenstein cell may invalidate your warranty. simon -Original Message- From: Simon Gardner [mailto:[EMAIL PROTECTED]] Sent: Monday, May 01, 2000 6:14 PM To: [EMAIL PROTECTED] Subject: RE: MD: Li-ion Gumstick Battery for MZ-55? I lost my MZ-r55 MD battery and remote and I am clueless on what to do. Ive heard wonders about the Li-ion batteries. I was just wondering if they are available for the MZ-r55 and where can I get the gumstick batteries. Anyone know where I can get a cheap remote? pelase help thanx Minidisco sell the batteries (Sony NH14WM) for $23.95 + s/h http://www.minidisco.com/miniorderacc.html Superfi (www.superfi.co.uk) sell them as well, for about 10ukp + s/h. The remotes are trickier - either expect to pay a lot for a Sony-supplied one or try to get one secondhand (possibly from someone with a broken unit?). -- Simon - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED] - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
Guys, This is turning into a bit of a flame war, and as it's nice and hot now I'll say my two eurocents. Conversion from analog to digital is most certainly *NOT* compression. It is a translation to a totally different representation of the data and whether or nor analog information is lost in the A-D conversion is irrelevant to "compression". Compression is only really relevant in the digital domain and implies a reduction in the size of a certain chunk of information. We all regularly use lossy and lossless compression, the ZIP format being lossless- you can't run an approximate version of a program, and JPEG etc being lossy. The lossy algorithms work because they throw away information that in "sensual data" which at present means video and audio files, is info we humans cannot generally detect. Whether it is video or audio or both is irrelevant. If the amount of raw data transmitted is reduced from the original source, then you are compressing. I don't care if you throw bit-reduction wotnot into the tank, ATRAC stores 44.1KHz/16-bit stereo info in a fifth the raw data space. In my book that is compression and anyone who disagrees needs their head examined! And as for the mobile phone debate, I would be absolutely amazed if some form of compression wasn't used by digital phones, and also the DECT cordless phones that are commonplace in Britain. It would be crazy to allocate the bandwidth for uncompressed digital signals-- just compare a 8khz 8bit WAV with a 16bit (any freq) JPEG compressed file, the MPEG is a fraction of the size and sounds a damn site better. Cheers, ___ ___ | || | | o || o | | |Gareth Bell - [EMAIL PROTECTED] | | | o || o | | | _ _ | | | o | | __ \ _ _ _ / ___| _ | O | | | | |__| )| __)(_)| _ \| __)| _ \ | | _ ( \|__ / | | | o | | ___/ | / | || | | || | | |_| | | | \ || _ | / _/ | O | | | | | | | | || | | || |__ | / | |_| || |_| |/ /__ | | | o | |_| |_| |_||_| |_||)|_) \_/|_||| | O | | || | | o || o | | | ICQ: 36892193 http://website.lineone.net/~princegaz/| | | o || o | | |"An it harm none, do what thou wilt"| | | o || o | |___||___| - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
On Tue, 2 May 2000, Stainless Steel Rat wrote: * [EMAIL PROTECTED] on Tue, 02 May 2000 | ATRAC is an algorithm. GSM is an algorithm. MPEG is an algorithm. Algorithmic transformation. ATRAC is not a transformation (strictest definition). What you get out is the same as what you put in, just less of it. MP3 is actually two algorithms, a bitwise reduction and Huffman coding; the Huffman coding is a transformation. Now you seem to be trying to argue detailed semantics. It would perhaps be a good idea if you were to define these terms precisely, since it seems that you are in the habit of redefining terms frequently... | ...reducing data so as to require less digital bits to transmit. The | increase in carrier capacity or decrease in storage space are just side | effects; the critical reason it's considered compression is because there | are less bits needed to transmit the signal. Less bits needed to transmit the signal = effectively increasing carrier capacity. Of course. But my point is that it's called compression not because it increases carrier capacity, but because it decreases the bits. Compression refers to a specific type process rather than an effect. | You are making the same mistake over and over. You are trying to look at | analog and digital signals and claiming that because some particular way | of encoding analog signals may take up more space than another particular | way of encoding digital signals, therefore it's a form of compression. You are making the same mistake over and over. You are trying to look at audio sampling under the very strict definitions of communications rather than the more generalized definitions used by the layman. Just because laypeople such as yourself choose to use an incorrect definition is not an excuse. You also have failed to produce anybody anywhere other than yourself who believes in this definition. I know many people who fit the definition of laypeople in the digital audio field and they have all been astonished that DAC and ADC could be called "compression". I'm also not using the "communications" definition. I'm using the only definition I have ever heard expressed by any person other than yourself. Actually, I am unfamiliar with "laymen" who talk about data compression...maybe the laypeople over where you live are different? :) | Analog to digital covnersion is NOT compression. CITE A SOURCE if you are | going to continue to assert this. CD-Video. Perhaps you're confused about what "citing a source" means. Find an authoritative and reliable source that backs up your claim. I've done that for my claims, now it's your turn. Find a standards document to back up your claim. Specifically, something that says that it's compression. | Sadly, I haven't found a source that stated that ADC was not compression; | most people in the field would never even consider that as a possibility. I'm not talking about what "people in the field" think. I am talking about what everybody else thinks. "everybody else" seems to disagree with you so far. I'm not an expert in digital audio, signal processing, data compression, or any other related field. I'm a computer science major. My compression experience is limited to writing some Huffman compression code awhile back, and porting some wavelet compression source to the Newton MessagePad. NO formal training. I'm not "in the field". Please cite a source, find somebody else who agrees with you? gopi. - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
On Tue, 2 May 2000, Stainless Steel Rat wrote: * Ralph Smeets [EMAIL PROTECTED] on Tue, 02 May 2000 | GSM is compressed and encrypted. And not used in the US. We have PCS, which is not encrypted. The header packets are secured using a key exchange mechanism to prevent theft of IDs. You did not read my message. I cited sources demonstrating that CDMA, used in the US, is both compressed and encrypted. The fact is, compresed and encrypted wireless cellular systems are widely used in the US. Whether this was an FCC loophole or not is irrelevant; your initial claim has been demonstrated to be incorrect. gopi. - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
On Tue, 2 May 2000, Stainless Steel Rat wrote: * [EMAIL PROTECTED] on Mon, 01 May 2000 | That is absolutely false. IEEE 802.11, aka WaveLAN, aka Orinoco is a | license free 2.4GHz wireless networking system. It is licensed and | approved and used (widely) in the United States. It includes either 40 | bit or 128 bit encryption depending on the version you use. This is an interesting loophole in the FCC regs. An 802.11 packet can be considered to be clear even when what is inside the envelope is encrypted. When the regs were drafted they never considered the idea of encapsulation, or never took it seriously. I suspect the FCC was quite annoyed when they learned about 802.11 and related protocols. They're quite happy with cellular links being encrypted. Why did you claim that it was impossible to send compressed and encrypted communications when you appear to know full well that many standards used are both compressed and encrypted? Your original claim, that cellular communications couldn't be encrypted or compressed has been proven false. You may be trying to demonstrate your knowledge by describing in more detail how something works, but the fact remains that your initial claims were wrong; I'm dubious as to whether I should trust any of the other information you are so sure about. gopi. - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
[EMAIL PROTECTED] wrote: | ...reducing data so as to require less digital bits to transmit. The | increase in carrier capacity or decrease in storage space are just side | effects; the critical reason it's considered compression is because there | are less bits needed to transmit the signal. Less bits needed to transmit the signal = effectively increasing carrier capacity. | You are making the same mistake over and over. You are trying to look at | analog and digital signals and claiming that because some particular way | of encoding analog signals may take up more space than another particular | way of encoding digital signals, therefore it's a form of compression. You are making the same mistake over and over. You are trying to look at audio sampling under the very strict definitions of communications rather than the more generalized definitions used by the layman. Sory Rat, but I CAN mathematicly prove you that under the right conditions, A/D conversion is just a conversion. It's not a form of compression. Take a cours at the Uni in Discrete Signal Processing and you'll see that you're wrong! | Analog to digital covnersion is NOT compression. CITE A SOURCE if you are | going to continue to assert this. CD-Video. Well, you just can't store 30 minutes of video on a 12 cm disc digitaly without doing any kind of compression. (And in the case of CD-Video that's MPEG1) | Sadly, I haven't found a source that stated that ADC was not compression; | most people in the field would never even consider that as a possibility. I'm not talking about what "people in the field" think. I am talking about what everybody else thinks. Hmmm, I rather had the impression that there is nobody (except for you) out there that thinks about ADC as a form of compression Cheers, Ralph -- === Ralph SmeetsFunctional Verification Centre Of Competence - CMG Voice: (+33) (0)4 76 58 44 46 STMicroelectronics Fax:(+33) (0)4 76 58 40 11 5, chem de la Dhuy Mobile: (+33) (0)6 82 66 62 70 38240 MEYLAN E-Mail: [EMAIL PROTECTED] FRANCE === "For millions of years, mankind lived just like the animals. Then something happened which unleashed the powers of our imagination: We learned to talk." -- Stephen Hawking, later used by Pink Floyd -- === - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
* [EMAIL PROTECTED] on Mon, 01 May 2000 | That is absolutely false. IEEE 802.11, aka WaveLAN, aka Orinoco is a | license free 2.4GHz wireless networking system. It is licensed and | approved and used (widely) in the United States. It includes either 40 | bit or 128 bit encryption depending on the version you use. This is an interesting loophole in the FCC regs. An 802.11 packet can be considered to be clear even when what is inside the envelope is encrypted. When the regs were drafted they never considered the idea of encapsulation, or never took it seriously. I suspect the FCC was quite annoyed when they learned about 802.11 and related protocols. Also, the Department of Commerce has fought very hard to keep the crypto loopholes from being tightened up. -- Rat [EMAIL PROTECTED]\ Caution: Happy Fun Ball may suddenly Minion of Nathan - Nathan says Hi! \ accelerate to dangerous speeds. PGP Key: at a key server near you! \ - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
* [EMAIL PROTECTED] on Tue, 02 May 2000 | ATRAC is an algorithm. GSM is an algorithm. MPEG is an algorithm. Algorithmic transformation. ATRAC is not a transformation (strictest definition). What you get out is the same as what you put in, just less of it. MP3 is actually two algorithms, a bitwise reduction and Huffman coding; the Huffman coding is a transformation. | ...reducing data so as to require less digital bits to transmit. The | increase in carrier capacity or decrease in storage space are just side | effects; the critical reason it's considered compression is because there | are less bits needed to transmit the signal. Less bits needed to transmit the signal = effectively increasing carrier capacity. | You are making the same mistake over and over. You are trying to look at | analog and digital signals and claiming that because some particular way | of encoding analog signals may take up more space than another particular | way of encoding digital signals, therefore it's a form of compression. You are making the same mistake over and over. You are trying to look at audio sampling under the very strict definitions of communications rather than the more generalized definitions used by the layman. | Analog to digital covnersion is NOT compression. CITE A SOURCE if you are | going to continue to assert this. CD-Video. | Sadly, I haven't found a source that stated that ADC was not compression; | most people in the field would never even consider that as a possibility. I'm not talking about what "people in the field" think. I am talking about what everybody else thinks. -- Rat [EMAIL PROTECTED]\ Do not taunt Happy Fun Ball. Minion of Nathan - Nathan says Hi! \ PGP Key: at a key server near you! \ - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
RE: MD: compression
All other things being equal, 16-bit linear PCM takes up less space on a CD than analog audio does; cf CD-Video (not to be confused with I have not seen an analog audio on CDs. If you sample the analog audio at a higher freq. or with a smaller resolution, it won't fit on a traditional CD. You still haven't shown how to measure the size of analog data. sampling process has made the data smaller. Playback of the PCM data is in most cases almost indistinguishable from the analog original. This meets To your ears maybe, but if you look at the waveform on a oscilloscope, the data is far from close to the analog data. Another example: cellular vs. digital pcs. Same absolute bandwidth. No What are you talking about ? digital pcs _IS_ cellular. Which digital PCS technology are you refering to ? CDMA, TDMA, GSM ? The "bandwidth" is not fixed. It is a design constraint. conventional compression. Yet you can get several times more effective No conventional compression ? You obviously have no idea what you're talking about. Cellular uses codecs (coder/decoder) which encodes the data (in a wireless system, reduces the bit rate, and also adds redundancy for error correction), which is then modulated through the channel (air). The decoder's responsibility is to reconstruct the data by the received data, correct any errors, and convert them back to the analog domain known as speech. The encoding process among other things _DO_ compress the data, and the effects are quite obvious. Try playing music through the cell phone. making a thing smaller. I have cited references where feasable (admittedly not many, but enough). I have cited examples of A vs. D, where D is Your references all have fundamental flaws that everyone has pointed out. You refuse to open your mind and listen to what people are saying but you are entitled to your opinion. Once you finish high school/University you'll be singing a different song. WZ - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
[EMAIL PROTECTED] wrote: * [EMAIL PROTECTED] on Mon, 01 May 2000 | Actually, you will find that digital cellular systems virtually | universally use lossy compression for the voice. GSM for sure does, and | most others I have seen do. Actually, no, they don't. This comes straight from a guy who co-wrote the Sprint PCS software (he is now my co-sysmonster). The FCC does not allow compression or encryption; all civilian aerial broadcasts must be clear. The lossy compression you describe is achieved by ratcheting back the sampling frequency rate to concentrate on the baritone and tennor ranges, ignoring the bass and alto ranges entirely. May I have a big laugher here! GSM is compressed and encrypted. Each GSM network uses another encryption/ decryption methode. It's part of the GSM standard. Ever heared of DECT? It's the wireless phone equivalent of GSM. It also uses compression and encryption. Cheers, Ralph - or do you want everybody with a scanner to listen to your private conversations? -- === Ralph SmeetsFunctional Verification Centre Of Competence - CMG Voice: (+33) (0)4 76 58 44 46 STMicroelectronics Fax:(+33) (0)4 76 58 40 11 5, chem de la Dhuy Mobile: (+33) (0)6 82 66 62 70 38240 MEYLAN E-Mail: [EMAIL PROTECTED] FRANCE === "For millions of years, mankind lived just like the animals. Then something happened which unleashed the powers of our imagination: We learned to talk." -- Stephen Hawking, later used by Pink Floyd -- === - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
Hmm, I tried to keep calm, but. 1) EVERY recording methode is limitied by the bandwidth the recording-media provides. But you can't call it compression. 2) A very basic A/D rule: - Each analog signal with frequency x, can be reproduced when sampled at 2x and played back with 2x. Ie, you aren't trowing away any information here! 3) The bandwidth of tape is normaly smaller (with the exception of metal-tape) than the bandwidth of CDs. 4) Vinyl has a higher bandwidht than CD, but I've yet to see an LP that uses it's full potential. 5) CDV IS NOT the combination of LDV and CD. The video on CDV is also digital. LDV is analog. 6) CDs, LDs, LPs (vinyl) are all produced in a comparable way (pressing) (which is a lot cheaper than producing a tape). However the way they are read are all different: - CDs are read using a laser/opto-receiver combination that just needs to detect highs and lows. Nothing difficult here to produce. - LPs (vinyl) are read using a small contact (the needle) that touches the disc. The needle vibrates and that signal is amplified. Hence you get the sound. - LDVs are read in a simular way. The only thing that is different is the way the information is read. (LDV uses a laser/opto-receiver combination). AFAMMSM (As far as my memory serves me) the information on a LDV is stored using somekind of modulation (as with VHS/BetaMax/VCC etc.) 7) The S/R depends on the number of bits used in digital recordings. 8) The S/R depends on the bandwidth of the media in analog recordings. Cheers, Ralph - hoping that you see that you're trying to redifine things here! [EMAIL PROTECTED] wrote: * JR Moore [EMAIL PROTECTED] on Mon, 01 May 2000 | Yeah BUT, analog signals when recorded don't have a set size. You can't say | "1 minute of analog audio takes 5MB", you just can't. You can control the | amount of audio it holds by changing the speed. Say what? A CLV Laserdisc _always_ holds 60 minutes of analog video on the video track and 60 minutes of analog audio on the audio track, and the speed is constant (Constant Linear Velocity). A 60 minute cassette _always_ holds 30 minutes of analog music on a side, and the speed is constant. A T-120 VHS tape _always_ holds 120 minutes of analog video and 120 minutes of analog audio, and the speed is constant. In all three cases, the media density is constant. Assuming that the 5MB per minute of audio figure is accurate for a given media format, I can say with certainty that 1 minute of analog audio always requires 5MB for that type of media. Sony deliberately engineered Compact Disc to use the same mechanisms as Laserdisc. The media densities are identical. That is how we got CDV, a Compact Disc with both CD-DA and Laserdisc tracks. And the fact remains: CD-DA uses less physical space on the media for the same length of signal. -- Rat [EMAIL PROTECTED]\ Warning: pregnant women, the elderly, and Minion of Nathan - Nathan says Hi! \ children under 10 should avoid prolonged PGP Key: at a key server near you! \ exposure to Happy Fun Ball. - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED] -- === Ralph SmeetsFunctional Verification Centre Of Competence - CMG Voice: (+33) (0)4 76 58 44 46 STMicroelectronics Fax:(+33) (0)4 76 58 40 11 5, chem de la Dhuy Mobile: (+33) (0)6 82 66 62 70 38240 MEYLAN E-Mail: [EMAIL PROTECTED] FRANCE === "For millions of years, mankind lived just like the animals. Then something happened which unleashed the powers of our imagination: We learned to talk." -- Stephen Hawking, later used by Pink Floyd -- === - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
MD: Portable Music 200: Minidisc v.s. MP3
Hi all, found a MP3 vs MiniDisc article: http://www.gadgetsquad.com/pmd/mdvsmp3/ Cheers, Ralph -- === Ralph SmeetsFunctional Verification Centre Of Competence - CMG Voice: (+33) (0)4 76 58 44 46 STMicroelectronics Fax:(+33) (0)4 76 58 40 11 5, chem de la Dhuy Mobile: (+33) (0)6 82 66 62 70 38240 MEYLAN E-Mail: [EMAIL PROTECTED] FRANCE === "For millions of years, mankind lived just like the animals. Then something happened which unleashed the powers of our imagination: We learned to talk." -- Stephen Hawking, later used by Pink Floyd -- === - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
RE: MD: compression
Ivica Petrovic (writing about comparing a CD to the master tape) ... that we preferred a 16-bit\44.1 kHz CD being played on a Sony SACD player to the original 24-bit 96 kHz master tape on a Nagra D tape deck! When CD's were first introduced, they were slated as being too "clinical" to ears familiar to scratchy ol' vinyl. I think this is the same phenomenon revisited. Our ears "like" the right kind of distortion - go figure. simon - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
* Ralph Smeets [EMAIL PROTECTED] on Tue, 02 May 2000 | Sory Rat, but I CAN mathematicly prove you that under the right | conditions, A/D conversion is just a conversion. It's not a form of | compression. Take a cours at the Uni in Discrete Signal Processing and | you'll see that you're wrong! How many different ways do you want me to say that I am NOT talking about signal processing's definitions? | CD-Video. | Well, you just can't store 30 minutes of video on a 12 cm disc digitaly | without doing any kind of compression. You're right. CD-Video (CDV5) is usually 20 minutes of CD-DA audio and 6 minutes of analog LD video w/ two analog and two digital audio tracks. | (And in the case of CD-Video that's MPEG1) No, that is VideoCD (VCD). The only thing CDV and VCD have in common is the Compact Disc media. | Hmmm, | I rather had the impression that there is nobody (except for you) out there | that thinks about ADC as a form of compression Which is rather annoying, because it was a post here by someone else that made me think that way. And I am unable to find it in the archives (I'm not sure what I am looking for). -- Rat [EMAIL PROTECTED]\ Do not use Happy Fun Ball on concrete. Minion of Nathan - Nathan says Hi! \ PGP Key: at a key server near you! \ - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
* Simon Barnes [EMAIL PROTECTED] on Tue, 02 May 2000 | When CD's were first introduced, they were slated as being too "clinical" to | ears familiar to scratchy ol' vinyl. I think this is the same phenomenon | revisited. Our ears "like" the right kind of distortion - go figure. Probably apocryphal, but in one of Sony's test runs, at a higher sampling rate than 44.1kHz, you could hear the pages being turned by the orchestra. The test audience found that distracting, so Sony rolled back the sampling frequency. -- Rat [EMAIL PROTECTED]\ If Happy Fun Ball begins to smoke, get Minion of Nathan - Nathan says Hi! \ away immediately. Seek shelter and cover PGP Key: at a key server near you! \ head. - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
MD: Test mode on a JE530
How do I enter/exit test mode on a Sony MDS-JE530? Thanks Luca Milano, Italy - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
MD: 650MB Minidiscs
Perhaps this has been addresses before (and I imagine many times), so I apologize for bringing this up one more time. I heard about the 650MB MDs a while back, but they weren't in use at that point. Though I recently noticed Sony is using them in one of their camcorders. This makes me wonder whether Sony (or anyone) is going to use them in their audio recorders/players. Any ideas? -- John - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: 650MB Minidiscs (what I think)
I think it's unlikely for a number of reasons. 1. Even as popular as MD is right now, the idea of what it is hasn't exactly sunk in for the public. Now, because the 650MB disc is not compatible with anything in existence, there's going to be a lot of confusion involving "which disc is which". There are cost involved in creating new equipment - if you want them to be capable of old and new MD formats it takes extra effort. Marketing (letting people know what this new audio format really is), and possibly new production facilities also cost money. I personally think Sony would give memory stick a bigger budget over this in any way. 2. MD data is in fact struggling. It's only in a few products, and notice that Sony has never pushed it like they're pushing for memory stick now. 3. Right now there are several other magneto-optical data recording formats either in development or already launched. Sony's joint venture with Sharp has created a 1/2GB storage medium that has a 50.8mm diameter (MD = 64mm). With this format in development, maybe Sony is already thinking about phasing out MD data altogether. Fujitsu, IBM, Pioneer, Philips and TDK have agreed to back up this format. http://www.world.sony.com/JP/News/Press/23/00-0323/ I think Sanyo and someone else is also developing a similar high-capacity format. Leon I heard about the 650MB MDs a while back, but they weren't in use at that point. Though I recently noticed Sony is using them in one of their camcorders. This makes me wonder whether Sony (or anyone) is going to use them in their audio recorders/players. Any ideas? -- John - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: Digital IN on CMI8330 based sound card.
I have a CMI8330 based sound card with digital in and out. I have had the digital out successfully interfaced to my SONY JE510 deck for some time. I have recently bought a TORX optical receiver module and interfaced this to the digital in. The receiver appears to be working OK, but I don't get any input level when trying to record on the computer. I have selected the CD Digital In in the volume control panel in Win95. Anyone got any ideas. It looks as though the soundcard is not selecting the digital in correctly. Cheers Jon -- I have a Zoltrix Nightingale card which uses CMI8738 chip (which apparently is derived from CMI8330) and comes with an optical in/out daugter-board. I think the most of the functionality of the chip is controlled through the dirver and the AudioRack application (assuming you are using Win95/98). Try getting all of that from the C-Media website (http://www.cmedia.com.tw/). When you start Mixer (part of the AudioRack application), there is a button that brings up a dialog allowing to control the SPDIF I/O options. Try if it works for you. When you hit record in your software (or in AudioRack) you might get distortion. Try changing the volume of anything in Mixer and that distortion will go away. Also, I still have problems with recording being faster than the original. See if you get this problem. And, finally, there seems to be a mailing list concerned only with CMI8330. See more info on CMI8330 at http://www.users.dircon.co.uk/~castaway/. __ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
MD: TOC cloning on R50
Hi All, A friend of mine is experiencing the dreaded UTOC error on his 702. It rendered a couple of his studio recordings so they come up with error (even in my R50). I'm wondering if the 702 TOC cloning procedure would work with the R50s. Or will opening the door notify the unit that a disc has been inserted ? - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: MD
From: Jeanmougin [EMAIL PROTECTED] Why audio MD can't record data. How can the recorder make the difference between audio data stream and computer data stream? Explain me. I think DATA MDs don't use ATRAC compression, which would make the data itself useless. But I'm sure there are more experienced people on the MD-L who can explain this better. Ciao! Luca Milano, Italy - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
MD: WinRemote 5.7 (PC controller and titler for SONY MD decks and mini-systems)
Date: Sun, 30 Apr 2000 21:00:39 +0100 From: "Ambrose Choy" [EMAIL PROTECTED] Subject: Re: MD: WinRemote 5.7 (PC controller and titler for SONY MD decks and mini-systems) Hi, Do you take cheques made in GBPs? Can I write you a cheque if I was to order the WinRemote? Yes I can accept cheque made in GBP, of course. The price of WinRemote (HW+SW) including postage and fee for cashing the check in my bank is 30 GBP Martin - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: TOC cloning on R50
Heya, A friend of mine is experiencing the dreaded UTOC error on his 702. It rendered a couple of his studio recordings so they come up with error (even in my R50). I'm wondering if the 702 TOC cloning procedure would work with the R50s. Or will opening the door notify the unit that a disc has been inserted ? In theory you can do it with any unit if you can find the switch that tells the unit if there has been a change in minidisc. This could come in the form of open door switch or minidisc insertion switch. Just finding that's tricky. 0 - Take off power 1 - Stop the switch working properly (ie jam it so that the unit constantly thinks it has a MD) 2 - Put a MD in, put on power. Load the unit up so it reads the TOC. 3 - Eject the disc**, put in the new disc (or disc to be overwritten). 4 - Force the unit to write the TOC, a way to do this is just alter the title 5 - Hit stop or whatever you have to do to make it save the TOC. 6 - Done. ** - Becareful! a) Make sure the unit is in the stop mode and b) make sure the MD units heads arn't extended out into a problem space when the unit is on. Best of luck, Peter. -- "We do not ask for money, only knowledge." -- Me. Peter Wood ([EMAIL PROTECTED]) Visit my Sharp 7XX homepage (http://www.wood-soft.co.uk) - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
MD: Test mode on a JE530
Hi all, maybe this message already went through but I did not receive it back from the list, so I send it again. I it's a duplicate, I apologize. Does anyone know how to enter/exit test mode on a Sony MDS-JE530? Thanks Luca Milano, Italy - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: TOC cloning on R50
From: Peter Wood [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, May 02, 2000 9:34 PM Subject: Re: MD: TOC cloning on R50 In theory you can do it with any unit if you can find the switch that tells the unit if there has been a change in minidisc. This could come in the form of open door switch or minidisc insertion switch. Just finding that's tricky. Sorry, not quite true. When you stop a portable MD it writes the TOC instantly - it will even stop before the battery runs out to enable it to write the TOC before it stops. If you suddenly remove the power then you will be in a situation where the head is extended and opening the unit may cause permanent damage - for this reason the unit locks the door shut. The trick you are using only works with HiFi models where the TOC is written at the end of editing when you eject the disc or in some cases enter "Standby" mode. Magic -- "Creativity is more a birthright than an acquisition, and the power of sound is wisdom and understanding applied to the power of vibration." Location : Portsmouth, England, UK Homepage : http://www.mattnet.freeserve.co.uk EMail : [EMAIL PROTECTED] - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: better sound?
From: Ivica Petrovic [EMAIL PROTECTED] To: MD [EMAIL PROTECTED] Sent: Tuesday, May 02, 2000 10:06 AM Subject: MD: better sound? this is an excerpt from British magazine Hi-Fi news record rewiev, May issue snipped It's a simple demonstration that shows people prefer the sound of one HiFi component against another. It would also explain why some people prefer the sound of Vinyl over CD - the overall tone may jest sound "nicer" to people even if it isn't reproduced as accurately as it could be. Magic -- "Creativity is more a birthright than an acquisition, and the power of sound is wisdom and understanding applied to the power of vibration." Location : Portsmouth, England, UK Homepage : http://www.mattnet.freeserve.co.uk EMail : [EMAIL PROTECTED] - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
MD: Problem with auto track marking...
=== The original message was multipart MIME=== === All non-text parts (attachments) have been removed === Hi again everyone... I just bought a Sony R70, my first MD = player/recorder. =20 I've recorded two CDs using the digital optical cord but the recorder = doesn't seem to be making new tracks correctly. =20 The first time I tried to record a CD, it got up to about the 3rd track = and then I noticed the display flashed Disk Error so I tried a different = MD. I didn't get a disc error but it only marked 6 tracks when the CD = has 11. It recorded the whole CD, it just didn't put enough marks in. = I've recorded two CDs (on two separate MDs) and both times it only = marked 6 tracks. I can enter them in manually but that's a pain. The manual says it's supposed to do it automatically when recording = digitally. What's up? === MIME part removed : text/html; === - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
RE: MD: TOC cloning on R50
I've found the button that determines whether a disc is in the unit, but what I've found out that once you "open" the door of the clamshell, the unit knows, so the next time you close the door, it re-reads the TOC. I'm going to open up the top tomorrow and see if I can fool the button/lever that deterines whether the door is closed or not. Anyone have any info, I'd appreciate it. Like how many springs I should expect to pop out... :) WZ - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
MD: Enter/exit Test Mode
In a message dated 02.05.2000 19:36:08 CETDST, "Luca" [EMAIL PROTECTED] writes: How do I enter/exit test mode on a Sony MDS-JE530? 1. Unplug the unit 2. Press and hold the AMS knob 3. Replug the unit while still pressing AMS knob 4. Release AMS knob - congratulations, you´re in Test Mode! 5. Unplug and replug the unit to exit test mode - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: Minidiscnow.com
On Tue May 02 at 09:55:21 PM, sherryl wrote: The problem is that the discount was supposed to be for personal use only. Not commercial. Eventually Fed Ex caught on and cut him off. Trying to get a new shipper in Japan was a nightmare. I have a hard time feeling sympathy for a person who was using a personal benefit like that to run a business. If you're going to run a business, you have to follow the rules. If you try to pull tricks like that to make a little more cash, you eventually get what you deserve. sean -- Sean Harding [EMAIL PROTECTED]|"I'm consuming my life http://www.dogcow.org/sean/ | and it tastes so good." | --The Nields - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
=== = NB: Over 50% of this message is QUOTED, please = = be more selective when quoting text = === Rat, you have a strange definition of compression. Shall we start the gun control debate now? Stainless Steel Rat wrote: * Ralph Smeets [EMAIL PROTECTED] on Tue, 02 May 2000 | Sory Rat, but I CAN mathematicly prove you that under the right | conditions, A/D conversion is just a conversion. It's not a form of | compression. Take a cours at the Uni in Discrete Signal Processing and | you'll see that you're wrong! How many different ways do you want me to say that I am NOT talking about signal processing's definitions? | CD-Video. | Well, you just can't store 30 minutes of video on a 12 cm disc digitaly | without doing any kind of compression. You're right. CD-Video (CDV5) is usually 20 minutes of CD-DA audio and 6 minutes of analog LD video w/ two analog and two digital audio tracks. | (And in the case of CD-Video that's MPEG1) No, that is VideoCD (VCD). The only thing CDV and VCD have in common is the Compact Disc media. | Hmmm, | I rather had the impression that there is nobody (except for you) out there | that thinks about ADC as a form of compression Which is rather annoying, because it was a post here by someone else that made me think that way. And I am unable to find it in the archives (I'm not sure what I am looking for). -- Rat [EMAIL PROTECTED]\ Do not use Happy Fun Ball on concrete. Minion of Nathan - Nathan says Hi! \ PGP Key: at a key server near you! \ - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED] -- Jim Coon Not just another pretty mandolin picker. mailto:[EMAIL PROTECTED] If Gibson made cars, would they sound so sweet? My first web page http://www.tir.com/~liteways - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
* "J. Coon" [EMAIL PROTECTED] on Tue, 02 May 2000 | Rat, you have a strange definition of compression. Agreed. | Shall we start the gun control debate now? "Amendment II" is all I have to say about that. -- Rat [EMAIL PROTECTED]\ Do not taunt Happy Fun Ball. Minion of Nathan - Nathan says Hi! \ PGP Key: at a key server near you! \ - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: Minidiscnow.com
[EMAIL PROTECTED] wrote: What happened to them? Why did they close? The information on the site is not very exhaustive... Byez Luca Milano, Italy Somehow the 'now' turned into 'somewhere in the future'. A lot of clients weren't that happy with it and thus they lost their clients. MD-L probably had to do something with it (to many complaints about them on the list). Cheers, Ralph -- === Ralph SmeetsFunctional Verification Centre Of Competence - CMG Voice: (+33) (0)4 76 58 44 46 STMicroelectronics Fax:(+33) (0)4 76 58 40 11 5, chem de la Dhuy Mobile: (+33) (0)6 82 66 62 70 38240 MEYLAN E-Mail: [EMAIL PROTECTED] FRANCE === "For millions of years, mankind lived just like the animals. Then something happened which unleashed the powers of our imagination: We learned to talk." -- Stephen Hawking, later used by Pink Floyd -- === - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
MD: better sound?
this is an excerpt from British magazine Hi-Fi news record rewiev, May issue "The 1999 Hi-fi show was certainly intriguing...but the van den Hul demo somewhat threw me and I suspect many others as well. Mr. A J Hul was there himself, asking people for their views on the difference in sound between two alternative sources played through BW 802s and his own amplifiers. Everyone in the room agreed the first example seemed preferable, with a fuller, more focused sound. He carried out the comparison several times moreWe still thought the first sounded better, before he went on to tell us, with a wry smile, that we preferred a 16-bit\44.1 kHz CD being played on a Sony SACD player to the original 24-bit 96 kHz master tape on a Nagra D tape deck! What's more, he agreed with us." Comments? And they're talking about "we can't recommended MD format yet"? Maybe master tapes too? - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
Re: MD: compression
* Ralph Smeets [EMAIL PROTECTED] on Tue, 02 May 2000 | GSM is compressed and encrypted. And not used in the US. We have PCS, which is not encrypted. The header packets are secured using a key exchange mechanism to prevent theft of IDs. | Ever heared of DECT? Also not used in the US. We have WDCT, which is not encrypted. It uses continuous pseudorandom frequency hopping for security. From Siemens own literature: "The use of frequency hopping spread spectrum makes phone conversations more secure and less susceptible to interference, virtually guaranteeing privacy - an important feature when business transactions such as banking are done over the telephone. At 100 hops per second, calls made on a WDCT system are nearly impossible to intercept." -- Rat [EMAIL PROTECTED]\ Happy Fun Ball contains a liquid core, Minion of Nathan - Nathan says Hi! \ which, if exposed due to rupture, should PGP Key: at a key server near you! \ not be touched, inhaled, or looked at. - To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
