python-sounddevice
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Setting latency returns unexpected result
Hi,
The following code produces an unexpected result.
import sounddevice as sd
sd.Stream(channels=1,latency=(0.1,0.1)).latency
returns :
(0.014512471655328799, 0.10158730158730159)
I would not have been as surprised if it returned a latency longer than the desired input latency, but why would the first value be so much smaller than 0.1?
The devices being used are:
0 Microsoft Sound Mapper - Input, MME (2 in, 0 out)
> 1 Microphone Array (Realtek High , MME (2 in, 0 out)
2 Microsoft Sound Mapper - Output, MME (0 in, 2 out)
< 3 Speaker/HP (Realtek High Defini, MME (0 in, 2 out)
Can you try some more extreme values to check if the returned values change at all? Can you try different values for input and output?
There might be a bug in the sounddevice module mixing up inputs and outputs (or something like that), but it might also simply be the behavior of the PortAudio library.