[linux-audio-user] Recording from Line-In

I'm having problems recording from line in. Without knowing exactly what's going wrong, all I can say is that I can only playback "silence." As I'm recording, I can hear the audio being fed back through the external speakers. I can also use various mixers to mute/unmute and set the volume on the "Line" setting. So I'm pretty sure everything is hooked up right. I initially tried using sox/notlame/mpg123 ... # record and encode $ sox -t ossdsp -w -r 44100 /dev/dsp -t cdr - | notlame -k -v -S - /tmp/out.mp3 # playback $ mpg123 /tmp/out.mp3 I've since tried to simplify things ... $ rec -d /dev/dsp /tmp/out.wav $ play /tmp/out.wav Neither of them work. System details are provided below. What else can I do to troubleshoot this? Thank in advance - gary System . redhat 8.0 (2.4.20-19.7) . alsa-0.9.6 . Turtle Beach Santa Cruz sound card $ lspci 00:0b.0 Multimedia audio controller: Cirrus Logic CS 4614/22/24 [CrystalClear SoundFusion Audio Accelerator] (rev 01) $ lsmod Module Size Used by Not tainted snd-seq-midi 5312 0 (autoclean) (unused) snd-seq-oss 34720 0 (unused) snd-seq-midi-event 6048 0 [snd-seq-midi snd-seq-oss] snd-seq 47280 2 [snd-seq-midi snd-seq-oss snd-seq-midi-event] snd-pcm-oss 45284 0 snd-mixer-oss 16408 1 [snd-pcm-oss] snd-cs46xx 80636 1 snd-rawmidi 18656 0 [snd-seq-midi snd-cs46xx] snd-seq-device 6284 0 [snd-seq-midi snd-seq-oss snd-seq snd-rawmidi] snd-ac97-codec 50264 0 [snd-cs46xx] snd-pcm 85344 0 [snd-pcm-oss snd-cs46xx] snd-timer 19588 0 [snd-seq snd-pcm] snd 43108 0 [snd-seq-midi snd-seq-oss snd-seq-midi-event sn d-seq snd-pcm-oss snd-mixer-oss snd-cs46xx snd-rawmidi snd-seq-device snd-ac97-c odec snd-pcm snd-timer] soundcore 6372 8 [snd] gameport 3440 0 [snd-cs46xx] snd-page-alloc 9876 0 [snd-cs46xx snd-pcm] $ cat /etc/modules.conf # ALSA portion alias char-major-116 snd alias snd-card-0 snd-cs46xx # module options should go here # OSS/Free portion alias char-major-14 soundcore alias sound-slot-0 snd-card-0 # 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 ===== -- Gary Cote gary(a)cotecorner.com