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Subject: [linux-audio-user] (no subject)
From: Jago Pearce (jago25_98_AT_hotmail.com)
Date: Wed Sep 25 2002 - 14:17:18 EEST

The Alsa documentation is confusing me massively.

I have no problems getting a basic setup sorted but I'm having trouble when
trying to do more than one thing at a time.

I have 2 soundcards:

- via686 onboard (half-duplex hardware. Can only record OR playback, can
only playback one thing at a time atm)

- ymfpci (should be full-duplex. Can play back more than one thing at a
time. Should be able to record whilst playing back)

One way or another I need to record whilst playing back and be able to
playback from >1 source (i.e. play 2 mp3 files at once).

To do this:

- How do I go about setting up /dev/dsp1 as well as /dev/dsp? (I have edited
/etc/modules.d/alsa and update-modules to no avail. Can I do this with
seporate soundcards or
just one? (the ymfpci has 2 channels)

- How do I get my yamaha to record whilst playing back (full-duplex)? I have
followed install instructions and I think it should work

Any links or suggestions would be great. I'm finding Alsa incredibly
compilcated for me.

Perhaps (as the most simple answer) I could have the via686 using standard
OSS and the ymfpci using Alsa?

details to follow:-


snd-pcm-oss 36804 1
snd-mixer-oss 9184 0 [snd-pcm-oss]
joydev 6816 0 (unused)
input 3424 0 [joydev]
snd-opl3-synth 8604 0 (unused)
snd-seq-instr 4432 0 [snd-opl3-synth]
snd-seq-midi-emul 4560 0 [snd-opl3-synth]
snd-seq 37868 0 [snd-opl3-synth snd-seq-instr
snd-ainstr-fm 1540 0 [snd-opl3-synth]
ppdev 8292 0 (unused)
lp 6176 0 (unused)
hid 15072 0 (unused)
sr_mod 11864 0 (unused)
apm 9608 1
uhci 24296 0 (unused)
vfat 10780 0 (unused)
fat 32056 0 [vfat]
parport_pc 13252 1
parport 14208 1 [ppdev lp parport_pc]
printer 7488 0 (unused)
scanner 8512 0 (unused)
NVdriver 1065920 10
ide-scsi 7680 0
eepro100 17456 1
snd-via686 7076 0
snd-ymfpci 41664 1
snd-pcm 56256 0 [snd-pcm-oss snd-via686 snd-ymfpci]
snd-ac97-codec 24432 0 [snd-via686 snd-ymfpci]
snd-mpu401-uart 2736 0 [snd-via686 snd-ymfpci]
snd-rawmidi 12896 0 [snd-mpu401-uart]
snd-opl3-lib 5408 0 [snd-opl3-synth snd-ymfpci]
snd-timer 10688 0 [snd-seq snd-pcm snd-opl3-lib]
snd-hwdep 3712 0 [snd-opl3-lib]
snd-seq-device 3936 0 [snd-opl3-synth snd-seq snd-rawmidi
snd 25928 0 [snd-pcm-oss snd-mixer-oss snd-opl3-synth
snd-seq-instr snd-seq snd-via686 snd-ymfpci snd-pcm snd-ac97-codec
snd-mpu401-uart snd-rawmidi
snd-opl3-lib snd-timer snd-hwdep snd-seq-device]

# cat /etc/modules.d/alsa

# Alsa 0.9.X kernel modules' configuration file.
# $Header:
1.3 2002/06/24 18:05:58 agenkin Exp $

# ALSA portion
alias char-major-116 snd
# OSS/Free portion
alias char-major-14 soundcore

## You need to customise this section for your specific sound card(s)
## and then run `update-modules' command.
## Read alsa-driver's INSTALL file in /usr/share/doc for more info.
## ALSA portion
alias snd-card-0 snd-ymfpci
alias snd-card-1 snd-via686
#alias snd-card-2 snd-ymfpci
#alias snd-card-3 snd-via686
#alias snd-card-4 snd-ymfpci
#alias snd-card-5 snd-via686
#alias snd-card-6 snd-ymfpci
#alias snd-card-7 snd-via686

## OSS/Free portion
## alias sound-slot-0 snd-card-0
## alias sound-slot-1 snd-card-1

# OSS/Free portion - card #1
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
## OSS/Free portion - card #2
alias sound-service-1-0 snd-mixer-oss
alias sound-service-1-8 snd-seq-oss
alias sound-service-1-12 snd-pcm-oss
#alias /dev/dsp1 snd-pcm-oss? or something?


Thank you for your time. (Please Type "REPLY:" in subject field if you wish
to highlight your response, thx). PGP comms are available on request. My
hushmail account is jago25_98_AT_hushmail.com.

Chat with friends online, try MSN Messenger: http://messenger.msn.com

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