#1978 NORM Opportu: TamTam is silent under qemu
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Sun Oct 28 18:57:30 EDT 2007
#1978: TamTam is silent under qemu
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Reporter: MitchellNCharity | Owner: Nat
Type: defect | Status: new
Priority: normal | Milestone: Opportunity
Component: tamtam-activity | Version:
Resolution: | Keywords:
Verified: 0 |
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Comment(by mihi):
I don't really know anything about ALSA programming, but I tried to debug
build 622 in qemu a bit:
- It seems that clooper disables resampling in ALSA and tries to resample
itself to 16000 and multiples of it.
- at least on my PC, the only "natively" supported sampling rate in qemu
is 47040 Hz. I don't know if that depends on the native sampling rates of
the host.
- editing Config.py and setting PLUGIN_RATE from 16000 to 15680 (one
third) creates strange noise but you can hear the samples (tested in
TamTamJam)
- setting the sample rate to 23520 works for me.
- Tested only with TamTam Jam, but should work with the others as well.
I am aware that this is only a workaround; the proper solution would be to
automatically determine the best sampling rate (or to enable automatic
resampling if no rate is available).
--
Ticket URL: <https://dev.laptop.org/ticket/1978#comment:9>
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