Guy, I was able to get recording to work by changing the sampling rate. I had originally used 44100, but I changed it to 48000, and I used plughw:0,0 and that seemed to get things working for me. After that started working, I was able to change the sampling rate to any of the supported rates and it worked. Go figure! ;-) Good luck, Anna -----Original Message----- From: Guy Hindell [mailto:guy.hindell@xxxxxxxxxx] Sent: Monday, January 29, 2007 5:28 AM To: Anna Klein; alsa-user@xxxxxxxxxxxxxxxxxxxxx Subject: Beginner - Problems with CA0106: capture from line-in, and playing audio CDs Hi all Was there any answer to this post? I have a similar set of problems having upgraded from Fedora Core 3 to Core 6 (alsa v1.0.13) with a Turtle Beach Santa Cruz card - sound plays but capture no longer works (haven't tried playing an audio CD, and I don't have access to the machine right now to give it a try). As a simple test, running 'arecord -d 5 > foo.wav' writes only a header, stops, and doesn't terminate after 5 seconds (had to interrupt it). I've tried going back to my Core 3 install (it's on a different partition) and checking the mixer settings - as far as I can tell everything is the same. Can anyone offer a clue? cheers guy ---- Hi, I just installed a SB Live! 24-bit card (SB0410) into a Dell Server 1960 running Redhat Enterprise Linux ES, with kernel 2.6.9. I also upgraded ALSA from 1.0.6 to 1.0.13 by compiling the sources for the drivers, libraries and utilities. Here are some of the things that I *can* do: - I am able to hear the test sound from the Sound Detection tool. - I can successfully play (and hear) a wav file using aplay. - I can use alsamixer to control volume and select line-in for capture. - I can hear white noise when I run speaker-test. Here are some of the things that I *cannot* do: - I can't capture anything from the line-in port. - I can't hear anything when I insert an audio CD. I'd like to capture from the line-in port but I hear nothing when I play it back. If I dump the contents of the buffer after calling snd_pcm_readi, there's nothing but NULLs. I also tried using arecord, sending the output to a file. Using hexdump to examine the file, except for the first 48 bytes (or so) of data, the rest of the file contained NULLs. The first 48 bytes appear to be some kind of header info, since I see that those bytes are always pretty similar after each attempt to record. When I insert an audio CD, the gnome-cd player automatically starts up and says it's playing the CD (it shows the correct track info), but I hear nothing. This was the command that the system used to bring up the CD player: > ps -ef | grep gnome-cd root 14274 1 0 11:56 ? 00:00:01 gnome-cd --unique --play --device /dev/hde root 14741 1 2 12:34 ? 00:00:00 gnome-cd --unique --play --device /dev/hde I am using the plughw:0,0 device. I tried to open the "default" device in my test capture/playback program, but that gave me the following error when I attempted the snd_pcm_open: ALSA lib pcm_direct.c:1587:(snd_pcm_direct_parse_open_conf) The field ipc_gid must be a valid group (create group audio) cannot open audio device default (Invalid argument) I am doing all work logged in as root. Can somebody please help me figure out what's wrong? Thanks, Anna Klein Here's some info that I hope will be helpful in diagnosing the problem: > cat /proc/asound/version Advanced Linux Sound Architecture Driver Version 1.0.13. Compiled on Jan 16 2007 for kernel 2.6.9-42.0.3.ELsmp (SMP). > cat /proc/asound/devices 0: [ 0] : control 1: : sequencer 8: [ 0- 0]: raw midi 16: [ 0- 0]: digital audio playback 17: [ 0- 1]: digital audio playback 18: [ 0- 2]: digital audio playback 19: [ 0- 3]: digital audio playback 24: [ 0- 0]: digital audio capture 25: [ 0- 1]: digital audio capture 26: [ 0- 2]: digital audio capture 27: [ 0- 3]: digital audio capture 33: : timer > cat /proc/asound/pcm 00-03: ca0106 : CA0106 : playback 1 : capture 1 00-02: ca0106 : CA0106 : playback 1 : capture 1 00-01: ca0106 : CA0106 : playback 1 : capture 1 00-00: ca0106 : CA0106 : playback 1 : capture 1 > cat /proc/asound/cards 0 [CA0106 ]: CA0106 - CA0106 Live! 7.1 24bit [SB0410] at 0xece0 irq 201 > lsmod | grep snd snd_seq_midi 12704 0 snd_seq_midi_event 11136 1 snd_seq_midi snd_seq 56144 2 snd_seq_midi,snd_seq_midi_event snd_ca0106 34736 2 snd_rawmidi 29096 2 snd_seq_midi,snd_ca0106 snd_seq_device 12684 3 snd_seq_midi,snd_seq,snd_rawmidi snd_ac97_codec 92964 1 snd_ca0106 snd_pcm_oss 48296 0 snd_mixer_oss 22912 2 snd_pcm_oss snd_pcm 81156 3 snd_ca0106,snd_ac97_codec,snd_pcm_oss snd_timer 28420 2 snd_seq,snd_pcm snd 63296 11 snd_seq,snd_ca0106,snd_rawmidi,snd_seq_device,snd_ac97_codec,snd_pcm_oss ,snd_mixer_oss,snd_pcm,snd_timer soundcore 13089 2 snd snd_ac97_bus 6400 1 snd_ac97_codec snd_page_alloc 14856 2 snd_ca0106,snd_pcm > amixer Simple mixer control 'Line in',0 Capabilities: cvolume cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Capture channels: Front Left - Front Right Limits: Capture 0 - 255 Front Left: Capture 171 [67%] [-18.00dB] [on] Front Right: Capture 171 [67%] [-18.00dB] [on] Simple mixer control 'Mic',0 Capabilities: cvolume cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Capture channels: Front Left - Front Right Limits: Capture 0 - 255 Front Left: Capture 0 [0%] [-99999.99dB] [off] Front Right: Capture 0 [0%] [-99999.99dB] [off] Simple mixer control 'Phone',0 Capabilities: cvolume cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Capture channels: Front Left - Front Right Limits: Capture 0 - 255 Front Left: Capture 0 [0%] [-99999.99dB] [off] Front Right: Capture 0 [0%] [-99999.99dB] [off] Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'IEC958 Center/LFE',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 235 [92%] [7.00dB] Front Right: Playback 235 [92%] [7.00dB] Simple mixer control 'IEC958 Front',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 232 [91%] [6.25dB] Front Right: Playback 232 [91%] [6.25dB] Simple mixer control 'IEC958 Rear',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 243 [95%] [9.00dB] Front Right: Playback 243 [95%] [9.00dB] Simple mixer control 'IEC958 Unknown',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 247 [97%] [10.00dB] Front Right: Playback 247 [97%] [10.00dB] Simple mixer control 'Aux',0 Capabilities: cvolume cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Capture channels: Front Left - Front Right Limits: Capture 0 - 255 Front Left: Capture 179 [70%] [-14.00dB] [off] Front Right: Capture 179 [70%] [-14.00dB] [off] Simple mixer control 'Analog Center/LFE',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 232 [91%] [6.25dB] Front Right: Playback 232 [91%] [6.25dB] Simple mixer control 'Analog Front',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 230 [90%] [5.75dB] Front Right: Playback 230 [90%] [5.75dB] Simple mixer control 'Analog Rear',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 235 [92%] [7.00dB] Front Right: Playback 235 [92%] [7.00dB] Simple mixer control 'Analog Side',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 232 [91%] [6.25dB] Front Right: Playback 232 [91%] [6.25dB] Simple mixer control 'CAPTURE feedback',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 207 [81%] [0.00dB] Front Right: Playback 207 [81%] [0.00dB] Simple mixer control 'Digital Capture Source',0 Capabilities: enum Items: 'IEC958 out' 'i2s mixer out' 'IEC958 in' 'i2s in' 'AC97 in' 'SRC out' Item0: 'IEC958 out' Simple mixer control 'Shared Mic/Line in',0 Capabilities: enum Items: 'Line in' 'Mic in' Item0: 'Line in' > arecord -L PCM list: hw { @args.0 CARD @args.1 DEV @args.2 SUBDEV @args.CARD { type string default { @func getenv vars { 0 ALSA_PCM_CARD 1 ALSA_CARD } default { @func refer name 'defaults.pcm.card' } } } @args.DEV { type integer default { @func igetenv vars { 0 ALSA_PCM_DEVICE } default { @func refer name 'defaults.pcm.device' } } } @args.SUBDEV { type integer default { @func refer name 'defaults.pcm.subdevice' } } type hw card $CARD device $DEV subdevice $SUBDEV } plughw { @args.0 CARD @args.1 DEV @args.2 SUBDEV @args.CARD { type string default { @func getenv vars { 0 ALSA_PCM_CARD 1 ALSA_CARD } default { @func refer name 'defaults.pcm.card' } } } @args.DEV { type integer default { @func igetenv vars { 0 ALSA_PCM_DEVICE } default { @func refer name 'defaults.pcm.device' } } } @args.SUBDEV { type integer default { @func refer name 'defaults.pcm.subdevice' } } type plug slave.pcm { type hw card $CARD device $DEV subdevice $SUBDEV } } plug { @args.0 SLAVE @args.SLAVE { type string } type plug slave.pcm $SLAVE } shm { @args.0 SOCKET @args.1 PCM @args.SOCKET { type string } @args.PCM { type string } type shm server $SOCKET pcm $PCM } tee { @args.0 SLAVE @args.1 FILE @args.2 FORMAT @args.SLAVE { type string } @args.FILE { type string } @args.FORMAT { type string default raw } type file slave.pcm $SLAVE file $FILE format $FORMAT } file { @args.0 FILE @args.1 FORMAT @args.FILE { type string } @args.FORMAT { type string default raw } type file slave.pcm null file $FILE format $FORMAT } null { type null } cards 'cards.pcm' front 'cards.pcm.front' rear 'cards.pcm.rear' center_lfe 'cards.pcm.center_lfe' side 'cards.pcm.side' surround40 'cards.pcm.surround40' surround41 'cards.pcm.surround41' surround50 'cards.pcm.surround50' surround51 'cards.pcm.surround51' surround71 'cards.pcm.surround71' iec958 'cards.pcm.iec958' spdif 'cards.pcm.iec958' modem 'cards.pcm.modem' phoneline 'cards.pcm.phoneline' default 'cards.pcm.default' dmix 'cards.pcm.dmix' dsnoop 'cards.pcm.dsnoop' ca0106 { type hw card 0 } > arecord -l **** List of CAPTURE Hardware Devices **** card 0: CA0106 [CA0106], device 0: ca0106 [CA0106] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: CA0106 [CA0106], device 1: ca0106 [CA0106] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: CA0106 [CA0106], device 2: ca0106 [CA0106] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: CA0106 [CA0106], device 3: ca0106 [CA0106] Subdevices: 1/1 Subdevice #0: subdevice #0 ------------------------------------------------------------------------- Take Surveys. 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