Sample rate issues with M-Audio M-Track 2x2M

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



alsa-project/alsa-lib issue #176 was edited from powerjungle:

At random points the sample rate changes, but the applications continue to use the previous rate. This results in sound being lower/higher pitch then normal. My own voice when using the application [Mumble](https://github.com/mumble-voip/mumble) consistently becomes higher pitch and sounds pretty funny, friends had a good laugh. I have some diffs of ALSA dumps.

My output is to headphones. My input is XLR.

Here for example I open the GNOME settings for "Sound" and my output becomes lower pitch:

```diff
6c6
< !!Script ran on: Sun Aug 29 19:56:57 UTC 2021
---
> !!Script ran on: Sun Aug 29 19:58:27 UTC 2021
1287c1287
<     Momentary freq = 48000 Hz (0x6.0000)
---
>     Momentary freq = 44101 Hz (0x5.8338)
1304c1304,1308
<   Status: Stop
---
>   Status: Running
>     Interface = 2
>     Altset = 1
>     Packet Size = 72
>     Momentary freq = 44100 Hz (0x5.8333)
1346c1350
< crw-rw----+ 1 root audio 116, 12 Aug 29 21:15 /dev/snd/pcmC1D0c
---
> crw-rw----+ 1 root audio 116, 12 Aug 29 21:58 /dev/snd/pcmC1D0c
1400c1404
<   Subdevices: 1/1
---
>   Subdevices: 0/1
2057,2058c2061,2062
< 		value.0 0
< 		value.1 0
---
> 		value.0 3
> 		value.1 4
```

Afterwards at a random point the output gets fixed, but the sample rate that gets logged is weird:

```diff
6c6
< !!Script ran on: Sun Aug 29 19:58:27 UTC 2021
---
> !!Script ran on: Sun Aug 29 20:33:14 UTC 2021
78c78
<       Running - No
---
>       Running - Yes
1287c1287
<     Momentary freq = 44101 Hz (0x5.8338)
---
>     Momentary freq = 47999 Hz (0x5.fff8)
1304,1308c1304
<   Status: Running
<     Interface = 2
<     Altset = 1
<     Packet Size = 72
<     Momentary freq = 44100 Hz (0x5.8333)
---
>   Status: Stop
1351c1347
< crw-rw----+ 1 root audio 116, 11 Aug 29 21:56 /dev/snd/pcmC1D0p
---
> crw-rw----+ 1 root audio 116, 11 Aug 29 22:32 /dev/snd/pcmC1D0p
1404c1400
<   Subdevices: 0/1
---
>   Subdevices: 1/1
2061,2062c2057,2058
< 		value.0 3
< 		value.1 4
---
> 		value.0 0
> 		value.1 0
```

Also sometimes when listening to music in Youtube using Firefox, the sound becomes higher pitch, but I cannot reproduce it, can't find the cause.

I'm running OpenSUSE Tumbleweed 5.13.13-1-default.

Issue URL     : https://github.com/alsa-project/alsa-lib/issues/176
Repository URL: https://github.com/alsa-project/alsa-lib



[Index of Archives]     [ALSA User]     [Linux Audio Users]     [Pulse Audio]     [Kernel Archive]     [Asterisk PBX]     [Photo Sharing]     [Linux Sound]     [Video 4 Linux]     [Gimp]     [Yosemite News]

  Powered by Linux