Re: [Alsa-user] Bitperfect Ears

2007-11-26 Thread Rene Herman
On 26-11-07 03:35, Bill Unruh wrote: [ the loudness war ] Clipping nor analogue distortion by the way is the problem. As said, it's the range compression to _avoid_ the clipping that they have to do when they master at these insane averages -- when you then later play them back at

Re: [Alsa-user] Bitperfect Ears

2007-11-26 Thread James Courtier-Dutton
Rene Herman wrote: On 25-11-07 04:18, Mark Constable wrote: There are a few online hearing test sites around, here is one with 16/44.1 wavs. I can't hear 12kHz-0dB.wav :-( http://www.phys.unsw.edu.au/music/dB/loudness.html Word of warning -- the outcome here will significantly vary with

Re: [Alsa-user] Bitperfect Ears

2007-11-26 Thread Sergei Steshenko
On Tue, 27 Nov 2007 02:26:48 +0100 Rene Herman [EMAIL PROTECTED] wrote: [snip] Wrote a small sine generator during this test by the way -- attached just in case anyone is interested. Writes S16_LE to stdout, so intended to be used as: $ sine -f freq -d dbspl | aplay -f cd -r rate for

Re: [Alsa-user] Bitperfect Ears

2007-11-26 Thread Rene Herman
On 27-11-07 02:26, Rene Herman wrote: Wrote a small sine generator during this test by the way -- attached just in case anyone is interested. Writes S16_LE to stdout, so intended to be used as: $ sine -f freq -d dbspl | aplay -f cd -r rate for setting a different rate than 44100: $ sine -f

Re: [Alsa-user] Bitperfect Ears

2007-11-26 Thread Rene Herman
On 27-11-07 02:41, Sergei Steshenko wrote: On Tue, 27 Nov 2007 02:26:48 +0100 Rene Herman [EMAIL PROTECTED] wrote: [snip] Wrote a small sine generator during this test by the way -- attached just in case anyone is interested. Writes S16_LE to stdout, so intended to be used as: Well,

Re: [Alsa-user] Bitperfect Ears

2007-11-26 Thread Sergei Steshenko
On Tue, 27 Nov 2007 02:48:20 +0100 Rene Herman [EMAIL PROTECTED] wrote: On 27-11-07 02:41, Sergei Steshenko wrote: On Tue, 27 Nov 2007 02:26:48 +0100 Rene Herman [EMAIL PROTECTED] wrote: [snip] Wrote a small sine generator during this test by the way -- attached just in case

Re: [Alsa-user] Bitperfect Ears

2007-11-26 Thread Bill Unruh
On Tue, 27 Nov 2007, Mark Constable wrote: On 2007-11-27 12:22 pm, Rene Herman wrote: Mmm, and now that I look at it again: ampl = 32767.0 / pow(10, -dbfs / 20); is the same as: ampl = 32767 * pow(10, dbfs / 20); which looks somewhat nicer. How about a copyright, license,

Re: [Alsa-user] Bitperfect Ears

2007-11-26 Thread Mark Constable
On 2007-11-27 01:19 pm, Bill Unruh wrote: A point is that these kind of hearing tests are almost useless in absolute terms but are indeed meaningful when tested and accumulated results are compared with for any particular individual. The consistent mean is to set up the listening

Re: [Alsa-user] Bitperfect Ears

2007-11-26 Thread Bill Unruh
On Tue, 27 Nov 2007, Mark Constable wrote: On 2007-11-27 01:19 pm, Bill Unruh wrote: A point is that these kind of hearing tests are almost useless in absolute terms but are indeed meaningful when tested and accumulated results are compared with for any particular individual. The consistent

Re: [Alsa-user] Bitperfect Ears

2007-11-25 Thread Rene Herman
On 25-11-07 04:18, Mark Constable wrote: There are a few online hearing test sites around, here is one with 16/44.1 wavs. I can't hear 12kHz-0dB.wav :-( http://www.phys.unsw.edu.au/music/dB/loudness.html Word of warning -- the outcome here will significantly vary with the used soundcard,

Re: [Alsa-user] Bitperfect Ears

2007-11-25 Thread Vladimir Mosgalin
Hi Rene Herman! On 2007.11.25 at 15:22:59 +0100, Rene Herman wrote next: That 16 kHz -60dB is just about my threshold with good headphones, good card set to 0 dB and external amplication cranked up. -57 I hear always, at -60 it's a little flaky. At those levels, 12-0dB actively hurts...

Re: [Alsa-user] Bitperfect Ears

2007-11-25 Thread Rene Herman
On 25-11-07 17:17, Vladimir Mosgalin wrote: On 2007.11.25 at 15:22:59 +0100, Rene Herman wrote next: That 16 kHz -60dB is just about my threshold with good headphones, good card set to 0 dB and external amplication cranked up. -57 I hear always, at -60 it's a little flaky. At those

Re: [Alsa-user] Bitperfect Ears

2007-11-25 Thread Bill Unruh
On Sun, 25 Nov 2007, Rene Herman wrote: On 25-11-07 17:17, Vladimir Mosgalin wrote: On 2007.11.25 at 15:22:59 +0100, Rene Herman wrote next: That 16 kHz -60dB is just about my threshold with good headphones, good card set to 0 dB and external amplication cranked up. -57 I hear always, at

Re: [Alsa-user] Bitperfect Ears

2007-11-25 Thread Rene Herman
On 25-11-07 22:10, Bill Unruh wrote: [ the loudness war ] And your senator is supposed to do what? Pass a law saying that clipping is illegal? Maybe we can pass another that states that distortion is illegal, and get rid of all those fuzz boxes on electric guitars. And throw anyone in jail

Re: [Alsa-user] Bitperfect Ears

2007-11-25 Thread Bill Unruh
On Sun, 25 Nov 2007, Rene Herman wrote: On 25-11-07 22:10, Bill Unruh wrote: [ the loudness war ] And your senator is supposed to do what? Pass a law saying that clipping is illegal? Maybe we can pass another that states that distortion is illegal, and get rid of all those fuzz boxes

[Alsa-user] Bitperfect Ears

2007-11-24 Thread Mark Constable
Was Re: [Alsa-user] best card for bitperfect SPDIF I/O?with?external clock sync ? On 2007-11-25 12:34 pm, Bill Unruh wrote: PS a bit of OT: I'm 24, and I barely hear 18khz (in headphones), unless it's VERY loud - I can hear only up to 17500-17800 clearly at average volume level. Is there