Ticket #374 (new defect)

Opened 2 months ago

Last modified 2 months ago

Recording from PulseAudio produces noise and very low quality sound

Reported by: turl Assigned to: lennart
Priority: high Milestone:
Component: daemon Severity: critical
Keywords: Cc:

Description

When you record audio using a native pulse application (GNOME Sound Recorder, for example), the sound you get is crappy and unusable. Using raw alsa output (no pulseaudio) works fine, also, if you use pulse's OSS emulation, the sound is OK.

I think this is not a hardware problem, as I can also reproduce this using virtual inputs (Captures)

libpulsecore5: 0.9.12-0ubuntu1~ppa1 libpulse0: 0.9.12-0ubuntu1~ppa5 pulseaudio: 0.9.12-0ubuntu1~ppa5

If you need more information, do not hesiate to ask for it. I attach a sound sample for you to listen to it and see what the problem might be.

Attachments

recordedsound.oga (17.2 kB) - added by turl on 09/30/08 18:29:46.
Recorded Sound Sample

Change History

09/30/08 18:29:46 changed by turl

  • attachment recordedsound.oga added.

Recorded Sound Sample

(in reply to: ↑ description ) 10/02/08 21:28:29 changed by kalaleq

I'm having the same problem. I had a hell of a time upgrading from 0.9.10 to 0.9.11/0.9.12, but finally got 0.9.12 (more or less) working. However, recording a sound from the gnome sound recorder app gives me the same result. It sounds like only random snatches of the sound are actually being recorded, with cut-outs between them (not silence - the snatches of sound are contiguous with no audible gaps between them). The app's counter of how many seconds of sound have been recorded also increments much more slowly than once per second.

My sound card is, per lspci -v:

00:14.2 Audio device: ATI Technologies Inc SB600 Azalia

Subsystem: ASUSTeK Computer Inc. Device 8230 Flags: bus master, slow devsel, latency 64, IRQ 16 Memory at fbcf4000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Kernel driver in use: HDA Intel Kernel modules: snd-hda-intel