From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Courtier-Dutton Subject: Re: [PATCH] - Audigy 1 and Audigy 2 mixer - again Date: Wed, 05 Nov 2003 15:28:09 +0000 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <3FA91709.7060905@superbug.demon.co.uk> References: <200311050701.IAA20667@www3.pobox.sk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <200311050701.IAA20667@www3.pobox.sk> Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: p z oooo Cc: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org p z oooo wrote: > Hi, > > Last evening I found way how to use Philips ADC instead of AC97 on > Audigy 1. > > Attached patch is tested only on Audigy 1 player (not tested on > Audigy 1 Platinium, Audigy 1 Platinium EX, Audigy 2, Audigy 2 > Platinium, Audigy 2 Platinium EX), but I think it should work for all > Audigy 1 and Audigy 2 cards, can some one test it ??? > > Modification: > - disable routing from AC97 line out to front speakers. > - AC97 ADC is used only for Mic playback and recording > - Philips ADC is used for other analog playback and recording > (Analog Mix Playback Volume, Analog Mix Capture Volume) > - removes unused AC97 controls (is phone used ???) > > Advantage: > - better Line In, Analog CD, Aux sound quality playback and > recording (I hope that Philips ADC is better than old AC97 ADC) > - similiar mixer as used on Windows > - simpler mixer > - you doesn't need set capture source to be able listen or record > analog sources - I think this was confusing for many users > - fixed small bug in MIC ADC buffer recording (alias device 1 - 16 > bit 8000 Hz mono) > > TODO: > It seems that Audigy 1 can do 24 bit/48kHz recording (and I think 24 > bit /48 kHz playback too) using TRAM playback and capture. Philips > ADC is connected to DSP and trasmit to DSP all 24 bit and I think > that Philips DAC is connected in same way. > > Peter Zubaj > Here is a web page with some nice pictures of the chips on the Audigy1 http://board.gabara.co.kr/Board/Read.php?tName=b_goods_ps&number=373 Do you have that ^ card ? I have an Audigy2 non-platinum, and it has the Philips 1361T Chip. http://www.semiconductors.philips.com/pip/UDA1361TS_N1.html#datasheet It looks to me to be an ADC for 2 channels. (Left and Right) As it is an ADC, I don't see how it can help playback. It probably handles the Line-in jack, which currently does not work with alsa. There is another Chip on my Audigy2 which is a Cirrus Logic CS4382-K http://www.cirrus.com/en/products/pro/detail/P282.html That is a 8-channel DAC so it would handle Playback, but strangely, the card only has 7-channel output (2 stereo jacks, and 1 3-channel jack). There are also some OP-AMPs 3x ST 4558C chips dual opamp 1x JRC 4556A chip dual opamp 1x ST 33078 / Z250 dual opamp The AC97 chip is a Sigmatel STAC9721T http://www.alsa-project.org/alsa/ftp/datasheets/sigmatel/9721spec.PDF The main Audigy2 chip is Creative Audigy2 CA0102-IAT It also has a Serial EEPROM: CSI 93C46S It also has an as yet unidentied creative chip: NO302 CA0151-DBS Does anyone have a Pin-Out details of the CA0102 and CA0151 ? Cheers James ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/