Re: [slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-17 Thread dcote
at the risk of getting severely flamed here... ;-) has anyone actually tried to take the dig. output from SB3, receiver et al. and compared that to the original CD? reason i ask is that there ARE known issues with at least one of the codecs in the SB3:

Re: [slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-17 Thread funkstar
dcote;360692 Wrote: reason i ask is that there ARE known issues with at least one of the codecs in the SB3: http://bugs.slimdevices.com/show_bug.cgi?id=6231 i understand that that bug applies to the MP3 codec, but it was assumed (!) to be near perfect, which it was not. Since when has any

Re: [slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-17 Thread Nonreality
peter;360452 Wrote: AndrewFG wrote: If so, then it seems that there is a lot of digital processing going on in real time, in at least two different CPUs, that gives plenty of opportunities for rounding errors, timing errors, error correction artifacts, and jitter to creep in. (Not to

Re: [slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-17 Thread radish
dcote;360692 Wrote: has anyone actually tried to take the dig. output from SB3, receiver et al. and compared that to the original CD? Yes, it's been done a number of times. I think there were some posts about tests like this in the Audiophile forum (thar be dragons!) recently. I think at

Re: [slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-17 Thread Mark Lanctot
dcote;360692 Wrote: is there not a minute possibility that other codecs (internal and external) may be suffering similar symptoms? No flames here but an easy way to prove that at least the FLAC decoding is lossless - it requires an HDCD-encoded track and an HDCD decoder connected digitally to

Re: [slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-17 Thread Mnyb
I have tried the DTS and dolby digital test, my HT processor gets it ergo my chain is lossles, no bits are missing. It's a little fuzzy to encode an 5.1 stream as wav and then to FLAC , but it can be done. I took it one step further and burned such a track on a CD and ripped it to ensure that no

[slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-16 Thread AndrewFG
I have 200GB of music ripped to .M4A files using iTunes Apple Lossless encoding (alac), that I stream via SqueezeCenter to a Transporter and output to my power amp using the Transporter's variable outputs. Sometimes I get the feeling that the playback is rather shrill, and I am trying to

Re: [slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-16 Thread amcluesent
Any thoughts? Settings-Advanced-File types is where you can control the processing of Apple Lossless and set convert to FLAC or WAV before streaming. plenty of opportunities for rounding errors, timing errors, error correction artifacts, and jitter to creep in Lossless is lossless. --

Re: [slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-16 Thread Peter
AndrewFG wrote: If so, then it seems that there is a lot of digital processing going on in real time, in at least two different CPUs, that gives plenty of opportunities for rounding errors, timing errors, error correction artifacts, and jitter to creep in. (Not to mention any prior artifacts

Re: [slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-16 Thread funkstar
AndrewFG;360440 Wrote: If so, then it seems that there is a lot of digital processing going on in real time, in at least two different CPUs, that gives plenty of opportunities for rounding errors, timing errors, error correction artifacts, and jitter to creep in. (Not to mention any prior

Re: [slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-16 Thread Themis
AndrewFG;360440 Wrote: What is the exact end-to-end signal path when using M4A alac encoded files? As I understand it, alac files are not decoded natively in the Transporter? So is it true that SqueezeCenter converts alac to flac and sends that to the Transporter? Does the Transporter then

Re: [slim] What REALLY happens end-to-end with Apple Lossless files?

2008-11-16 Thread Pat Farrell
AndrewFG wrote: Did anyone do proper end-to-end tests on the path CD - iTunes - alac - flac - volume - dac in real time, real world conditions? Can one be sure that the process is REALLY lossles? Any thoughts? I don't speak iTunes. But with flac, its trivial to prove its really lossless. Take