Audio output at 44.1k despite Hi-Res input file/stream - a bug or not implemented Hi-Res support?
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I am running Strawberry 1.0.17 on Windows 10. It downsamples all high resolution files. No matter of the source - streaming nor local file. No matter WASAPI nor DirectSound.
For example if I play local FLAC file 24/96 control panel of my USB DAC shows the DAC was open at 44.1kHz only.I know GStreamer has hi-res support. What about Strawberry? Is it lacking? Or there's a bug?
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I believe it is caused by not using WASAPI's exclusive mode. Wouldn't it be easy to add it? GStreamer wasapisink() function needs exclusive mode flag to be set (if this is indeed the function being used to output audio).
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Make sure the equalizer, bs2b and replay gain is off in the backend settings, they cause resampling.
Other than that I think the limitation is the driver.
At least on the DACs I've tested you have to set a fixed sample rate and bit depth in the driver settings. For example here are settings for Mcintosh:
Test with VLC, does it output at the same rate?I've tested exclusive mode, it crashes with some DACs but works with others. I think it's buggy in gstreamer.
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Thanks for your reply.
I have all the 3 settings disabled. As long as WASAPI is used in non-exclusive mode every soundcard or DAC is opened with its default system settings, whereas in the exclusive mode app which opens the DAC can set them.
So as a workaround I have started playback, checked sampling rate, stopped, changed Windows default sampling rate for my DAC to match the sample rate of my audio files. The sound improved a lot.
Unfortunately this workaround is really inconvenient, especially in a longer run.Could you add WASAPI in exclusive mode? It could be marked as unstable etc.
Do you mean VLC as a standalone app? I haven't spotted "exclusive" mode there for WASAPI.
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@jonas Could you elaborate a little on the VLC test?
