From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0000324]: Audigy2 Platinum: very low volume (both in and out) Date: Thu, 16 Sep 2004 13:23:41 +0200 (CEST) Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <20040916112341.CB8473F018@server.perex-int.cz> Content-Type: text/plain; charset=iso-8859-1 Return-path: Received: from mail.perex.cz (gate.perex.cz [82.113.61.162]) by alsa.alsa-project.org (ALSA's E-mail Delivery System) with ESMTP id 462DD2CD for ; Thu, 16 Sep 2004 13:23:42 +0200 (MEST) Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org A BUGNOTE has been added to this bug. ====================================================================== https://bugtrack.alsa-project.org/alsa-bug/bug_view_advanced_page.php?bug_id=0000324 ====================================================================== Reported By: garden Assigned To: pzad ====================================================================== Project: ALSA - driver Bug ID: 324 Category: PCI - emu10k1 Reproducibility: always Severity: major Priority: normal Status: assigned Distribution: Debian sid Kernel Version: 2.6.5 ====================================================================== Date Submitted: 06-06-2004 13:17 CEST Last Modified: 09-16-2004 13:23 CEST ====================================================================== Summary: Audigy2 Platinum: very low volume (both in and out) Description: Both the input and output levels of my Audigy2 Platinum seem to be very low if compared to the same card with Windows (win98se). For example, I connected an external source (a MD player with very loud music in the disc) to the optical input, then to the aux input, then to the aux2 input. With the mixer settings to 100% the input level still does not go over 20-25% of the maximum amplitude (while with Windows I have to lower the input level or it will be too high). The same thing applies to the output level of my analog speakers. [I must be *very* careful when I reboot with Windows and must not forget to turn the volume knob from 10 to 2]. I had exactly the same problem when I used the emu10k1 drivers from sourceforge. ====================================================================== ---------------------------------------------------------------------- garden - 09-14-2004 15:24 CEST ---------------------------------------------------------------------- Just to keep things updated: the problem stays there also with 2.6.8.1 and ALSA 1.0.7rc1 (not compiled with the kernel). ---------------------------------------------------------------------- pzad - 09-16-2004 10:16 CEST ---------------------------------------------------------------------- Driver only attenuate signals. If you set volumes of inputs and output to 100, then you get what is exactly on input. Windows drivers probably amplify inputs or outputs. Could you attach output of amixer ???? ---------------------------------------------------------------------- garden - 09-16-2004 11:37 CEST ---------------------------------------------------------------------- Here is my amixer output. I think it's very strange that the driver only attenuate signals... I can't believe that the maximum output from this card is so much more quiet than the output of an AWE64 (with ALSA and win95 the output volume was exactly the same). On this PC I also have an integrated sound card: 0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50) And in this case ALSA and win98 volume is quite the same. Moreover, I also have very low levels with optical *input*, and I'm sure that the original signal is near to 100% of volume. ---------------------------------------------------------------------- pzad - 09-16-2004 12:17 CEST ---------------------------------------------------------------------- >Moreover, I also have very low levels with optical *input*, and I'm sure that the >original signal is near to 100% of volume. Try to set "IEC958 Optical Capture" to 100 in alsamixer and record. Then check recorded file for signal level - maximum level - is this same as source or it is lower ??? Best will be for example with cd player (optical output connected to audigy). Recording something from this cd player. Then you should grab this directly from cd (using some cd rip app) and compare these two files if there is same volume level (They will be not same, because emu10k1 always resamples). Mixer in your other souncards are directly in hardware. On Audigy this mixer is implemented in DSP software and can be changed. Output or input can be amplifyed, but you will lose precision of your DAC or ADC. If you set for example "IEC958 Optical", Front and Master to 100. What is level compared to windows max mixer settings ??? I will check Audigy mixer if it is correct. Maybe I made some mistake. ---------------------------------------------------------------------- garden - 09-16-2004 13:23 CEST ---------------------------------------------------------------------- I tried to record a CD track (1st mov. of 5th symphony by Beethoven :-)) with a CD player with the optical output connected to the input on the audigy2 and IEC958 Capture at 100, then I tried connecting it to the RCA connectors (analog inputs, 100% volume), then I recorded it playing the CD in my CD-ROM reader (connected to the audigy2 "Audigy CD" digital input, 100% volume), then I ripped it with cdparanoia. These are the results (well, I think I went wrong with "very low level". It appears just to be "lower".) arecord (IEC958 optical input, Sony MXD-D1) Maximum amplitude: 0.835510 Minimum amplitude: -0.828491 arecord (Aux IN 2 on the front panel, Sony MXD-D1) Maximum amplitude: 0.727905 Minimum amplitude: -0.715240 arecord (AudigyCD digital audio CD input, LiteON something DVD-ROM) Maximum amplitude: 0.832703 Minimum amplitude: -0.828522 cdparanoia: Maximum amplitude: 0.933868 Minimum amplitude: -0.923676 As for the comparison windows vs linux, I'll reboot in a few minutes then I'll post the results. Bug History Date Modified Username Field Change ====================================================================== 06-06-04 13:17 garden New Bug 06-06-04 13:17 garden Distribution => Debian sid 06-06-04 13:17 garden Kernel Version => 2.6.5 06-28-04 09:17 pzad Assigned To => pzad 06-28-04 09:17 pzad Status new => assigned 09-14-04 15:24 garden Bugnote Added: 0001758 09-16-04 10:16 pzad Bugnote Added: 0001766 09-16-04 11:32 garden File Added: amixer.out 09-16-04 11:37 garden Bugnote Added: 0001769 09-16-04 12:17 pzad Bugnote Added: 0001772 09-16-04 13:23 garden Bugnote Added: 0001773 ====================================================================== ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php