Ubuntu
alsa-utils package

Captured sound is nearly not hearable

Bug #1214633 reported by Removed by request
12
This bug affects 1 person
Affects Status Importance Assigned to Milestone
alsa-utils (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

I'm using Ubuntu 13.10 dev with alsa-utils 1.0.27.1-1ubuntu1 and after capturing sound with avconv for example "avconv -f alsa -i hw:0 /tmp/test.wav" (and even another formats like the codec flac with the container mkv) on playback the sound is nearly not hearable (avconv confirms that capturing the sound was successfull).

I have maximized the output- and captuting-sound with alsamixer as shown here (http://imageshack.us/a/img600/8800/dkg0.png) and this makes it possible that I can hear the sound a bit more. But the problem is that the sound is still quiet and I have to increase the volume of my soundboxes to a level there I'm hearing more sound troubles than the captured sound.

Also I have reset the sound to its default values (deleting /var/lib/alsa/asound.state and forcing a reboot without running alsactl store) which ended up in this configuration (http://imageshack.us/a/img845/7427/pl6f.png). This will capture the sound too but I'm not able to hear it again.

Revision history for this message
Luke Yelavich (themuso) wrote : Re: [Bug 1214633] Captured sound is nearly not hearable

Have you tried to reocrd with either arecord or parecord from pulseaudio?

Revision history for this message
Removed by request (removed3425744) wrote :

I'm not hearing any sound with arecord while I'm still able to hear a very quiet sound with avconv. Here is the terminal output:

sworddragon@ubuntu:~$ arecord /tmp/test.wav
Recording WAVE '/tmp/test.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono
^CAborted by signal Interrupt...
arecord: pcm_read:2031: read error: Interrupted system call

After installing pulseaudio and pulseaudio-utils my system doesn't play any sound anymore. If I remove pulseaudio it is playing again but parecord will then logically fail with a message:

sworddragon@ubuntu:~$ parecord /tmp/test.wav
Connection failure: Connection refused
pa_context_connect() failed: Connection refused

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in alsa-utils (Ubuntu):
status: New → Confirmed
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