Audio input

Jeffrey Ross jeff at bubble.org
Thu Dec 14 23:15:34 UTC 2006


The ultimate goal is to covert old analog recordings to digital, sounds 
easy enough and I figure I'll try the package "phonoripper"  
(http://klappnase.zexxo.net/phonoripper/index.html).

My system as a 1/8 phono jack that is marked "line-in", connected the 
line output of my (known working) source to this port and I get nothing, 
of course I'm assuming I could turn up the volume of the capture port 
and hear something.  I would have thought I'd see a line-in tab or 
something similar.

So I'm guessing that Fedora (this is core 6) is not properly recognizing 
my audio chipset fully.  The Motherboard is an Intel DG965RYCK and 
according to Intel's docs the audio subsystem consists of an Intel 
82801HB ICH8 and a Sigmatel STAC9227 audio codec.

Audio playback (e.g. mplayer output) seems to work fine, the audio 
configurator does recognize the audio chipset properly as:

       Vendor:     Intel Corporation
       Model:      82801H (ICH8 Family) HD Audio Controller
       Module:     snd-hda-intel

The PCM device shows 2 options, STAC92xx Analog or STAC92xx Digital.  If 
I choose digital I don't get any sound (not surprising I'm using all 
analog audio devices) and analog works fine.

under the Gnome/GStreamer-based volume control I have two tabs,  
playback which has only "volume" and one other tab, capture, this tab 
shows "Digital-1" for the slider nothing else. 

/etc/modprobe.conf (created at configure) shows the following:
    alias snd-card-0 snd-hda-intel
    options snd-card-0 index=0
    options snd-hda-intel index=0
    remove snd-hda-intel { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || 
: ; }; /sbin
    /modprobe -r --ignore-remove snd-hda-intel


lastly an lsmod | grep snd shows the following:
snd_hda_intel          53725  4
snd_hda_codec         223681  1 snd_hda_intel
snd_seq_dummy          37317  0
snd_seq_oss            69953  0
snd_seq_midi_event     41921  1 snd_seq_oss
snd_seq                96609  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device         42581  3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss            81761  0
snd_mixer_oss          51649  4 snd_pcm_oss
snd_pcm               125129  3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_timer              59849  2 snd_seq,snd_pcm
snd                   101737  11 
snd_hda_intel,snd_hda_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore              44769  4 snd
snd_page_alloc         44113  2 snd_hda_intel,snd_pcm


Ok, so what am I missing?

TIA, Jeff





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