From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0000183]: Mic boost boosts mic playback and not recording Date: Thu, 7 Apr 2005 00:12:17 +0200 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from bugtrack.alsa-project.org (gate.perex.cz [82.113.61.162]) by alsa.alsa-project.org (ALSA's E-mail Delivery System) with ESMTP id 2B83C204 for ; Thu, 7 Apr 2005 00:12:18 +0200 (MEST) Sender: alsa-devel-admin@lists.sourceforge.net 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 The following issue has been ACKNOWLEDGED. ====================================================================== ====================================================================== Reported By: Schugy Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 183 Category: PCI - cmipci Reproducibility: always Severity: minor Priority: normal Status: acknowledged Distribution: SuSE 8.2 Kernel Version: 2.4.25 ====================================================================== Date Submitted: 04-04-2004 13:51 CEST Last Modified: 04-07-2005 00:12 CEST ====================================================================== Summary: Mic boost boosts mic playback and not recording Description: I've tried to record my voice with broadcast2000. The recording level is at -30db (maybe 2db louder than without mic boost) while mic playback seems to be boosted up by 500% to an audiable level. ====================================================================== ---------------------------------------------------------------------- mlejeune - 04-27-04 17:33 ---------------------------------------------------------------------- Same thing here. Mic boost switch works only on monitoring, not recording level, so mic input is unusable with standard mics. Alsa 1.0.4 (from sources) on vanilla 2.6.5 linux kernel. CMI8738-MC6 chipset with cmipci driver. ---------------------------------------------------------------------- tiwai - 04-30-04 11:43 ---------------------------------------------------------------------- well, unfortunately i can't find any relevant other register bits for the mic boost... ---------------------------------------------------------------------- Schugy - 05-23-04 19:45 ---------------------------------------------------------------------- Mic boost for recording isn't a hardware feature? Well, then we need a dirty workaround anywhere in the alsa/oss-library or something similar (feature request) to boost the volume of recorded sounds afterwards. At the moment this card is unusable for mics. Don't know whether it's useful to ask c-media for some information. ---------------------------------------------------------------------- tiwai - 05-24-04 14:50 ---------------------------------------------------------------------- i have no idea unless the datasheet provides no information about it... yes, please ask c-media. i've got no response from them, but more inquires may hit more frequently :) ---------------------------------------------------------------------- thorstenhirsch - 07-24-04 19:47 ---------------------------------------------------------------------- Same thing here with a 0000:00:0c.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10) and kernel 2.6.7 (gentoo-dev-sources). The mic boost is absolutely neccessary for netmeeting/teamspeak/skype. I'm going to write a mail to C-Media and hope that they'll answer. Issue History Date Modified Username Field Change ====================================================================== 04-04-04 13:51 Schugy New Issue 04-04-04 13:51 Schugy Distribution => SuSE 8.2 04-04-04 13:51 Schugy Kernel Version => 2.4.25 04-27-04 17:33 mlejeune Note Added: 0000962 04-27-04 17:35 mlejeune Issue Monitored: mlejeune 04-30-04 11:43 tiwai Note Added: 0000982 05-23-04 19:45 Schugy Note Added: 0001180 05-24-04 14:50 tiwai Note Added: 0001183 07-24-04 19:47 thorstenhirsch Note Added: 0001471 04-07-05 00:12 jdthood Status new => acknowledged 04-07-05 00:12 jdthood Resolution open => not fixable ====================================================================== ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click