[mythtv-users] OSS -vs- ALSA sound

[Jay Camp]

You need to make sure that your line-in is set to capture, volume turned up,
and muted.  The capture line should also be set to capture and volume turned
up on it.  This must be done because MythTV buffers video and audio, so
playing it out as it is read fromt he cable isn't what we're looking for.
That's why we're muting and capturing.  This is for ALSA on a SB Live!
(emu10k1).  Here is a good guide for setting up ALSA even if you're not
using Gentoo:

http://www.gentoo.org/doc/en/alsa-guide.xml

----- Original Message ----- 
From: "Mike Davis" <mdavis at mi5key.com>
To: <mythtv-users at mythtv.org>
Sent: Thursday, September 25, 2003 11:09 PM
Subject: [mythtv-users] OSS -vs- ALSA sound


> I have an SB Live Value!, using OSS drivers. (ALSA won't work for some
> reason and I can't find the right settings for anything with ALSA) I can
> use mplayer to watch videos in and out of MythTV. Sound is fine, although
I
> have to turn the volume up on the PCM channel to hear it. XMMS plays ogg
> files fine.
>
> "cat wavefile.wav > /dev/dsp" produces noise.
>
> dd bs=8k count=4 < /dev/dsp(X)>sample.au
> cat sample.au >/dev/dsp(X) produces noise
>
> I am using btaudio, and when I start watching Live TV I get the raw feed
> from the cable so audio is behind video.
>
> I don't even know what questions to ask. I'm really stuck. From the output
> below, I should be using mixer0 as the mixer? Should I be using digital or
> analog from btaudio?
>
> from mysql:mythconverg
> AudioDevice | /dev/dsp2
> AudioOutputDevice | /dev/dsp
>
> dmesg...
> Creative EMU10K1 PCI Audio Driver, version 0.20a, 23:58:02 Sep 21 2003
> emu10k1: EMU10K1 rev 4 model 0x0020 found, IO at 0xdf80-0xdf9f, IRQ 5
> ac97_codec: AC97 codec, id: 0x5452:0x4103 (TriTech TR28023)
>
> btaudio: driver version 0.7 loaded [digital+analog]
> btaudio: Bt878 (rev 2) at 02:09.1, irq: 5, latency: 64, mmio: 0xf7eff000
> btaudio: using card config "default"
> btaudio: registered device dsp2 [digital]
> btaudio: registered device dsp3 [analog]
> btaudio: registered device mixer1
>
> cat /proc/driver/emu10k1/02:0a.0...
> Driver Version : 0.20a
> Card type : Emu10k1
> Revision : 4
> Model : 0x0020
> IO : 0xdf80-0xdf9f
> IRQ : 5
>
> Registered /dev Entries:
> /dev/dsp0
> /dev/dsp1
> /dev/mixer0
> /dev/midi0
>
> Thanks in advance for any help.
>
> Mike
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>