Opened 17 years ago
Closed 15 years ago
Last modified 15 years ago
#3086 closed patch (invalid)
unmute capture card's analog audio out when recording
| Reported by: | Owned by: | Isaac Richards | |
|---|---|---|---|
| Priority: | minor | Milestone: | unknown |
| Component: | mythtv | Version: | head |
| Severity: | medium | Keywords: | |
| Cc: | Ticket locked: | no |
Description
I have an saa7134-based capture card which I'm connecting to my sound card with an analog audio cable. While I'm running tvtime, I can hear the audio through my sound card's aux in. However, in mythtv, this never happens, and so of course no sound is recorded. I finally found a fix here
http://lists-archives.org/video4linux/11319-problem-with-sound-and-mythtv.html
and I've put it into a patch. This fixes the problem for me.
One concern is that nothing in that patch re-mutes the capture card, so if it remains unmuted (haven't tested), that may be bad (though I personally wouldn't care). In the thread I linked to, they were unsure where to put code to re-mute, so I'll leave it to someone who knows their way around the code better than I.
Attachments (1)
Change History (3)
Changed 17 years ago by
| Attachment: | mythtv_unmute.patch added |
|---|
comment:1 Changed 15 years ago by
| Resolution: | → invalid |
|---|---|
| Status: | new → closed |
This appears to be a config/driver issue. Please reopen against trunk (or .22 when released) if it's still an issue.
comment:2 Changed 15 years ago by
Note, also, that there's a setting, "Do not adjust volume" in the V4L card configuration screen, to tell Myth not to adjust the audio (including unmuting it) on frame grabber cards.
Also, Janne just committed support for ALSA audio input for framegrabbers in trunk [21448].
One or both of these will likely fix the issue for you.
patch to unmute capture card's analog audio out