From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Courtier-Dutton Subject: Re: AC3 passthrough on Audigy Date: Wed, 27 Aug 2003 00:44:24 +0100 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <3F4BF0D8.9080701@superbug.demon.co.uk> References: <200308260847.KAA24438@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: <200308260847.KAA24438@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, > > This is taken from oss driver. It is not tested (I don't own > receiver). Can someone try it, maybe this works, I don't know. > > Audigy.conf - copy this to /usr/share/alsa/cards/ and overwrite old > one (make backup). > > emu10k1.h.patch - patch for file alsa-driver/alsa- > kernel/include/emu10k1.h > > emufx.c.patch - patch for file alsa-driver/alsa- > kernel/pci/emu10k1/emufx.c > > If this doesn't work try to comment out lines > A_OP(icode, &ptr, iSKIP, A_GPR_COND, A_GPR_COND, A_GPR(gpr - 2), > A_C_00000001); > A_OP(icode, &ptr, iACC3, A_GPR(tmp + 2), A_C_00000000, A_C_00010000, > A_GPR(tmp + 2)); > > And if this doesn't work too, then delete this mail. > > Peter Zubaj > I tried this on an Audigy2. It does not work. The non-audio bits on the SPDIF are set correctly, and Audio data is being sent out from the port, so for PCM data it is fine. For non-audio AC3 data, it fails. Probably due to the samples getting modified in some way as they pass thru the DSP. Cheers James ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf