MP2 - V2.1 [MP2-563] WASAPI not working for sample rates > 48 kHz (1 Viewer)

[Lehmden]

Then Wasapi is working as expected on your system.

Maybe the shared mode is working as expected, but I also expect it to work in exclusive mode and this is not the case. Exclusive mode only is working for LowRes files or files with 2 channels maximum.

 

[HTPCSourcer]

My bad.

So what happens is that when in exclusive mode and playing files with sample rates >48 kHz, Wasapi is falling back to shared mode.

@Helios61 , this is still better than what you are experiencing. So first target is to fix the immediate issue of player throwing errors at you.

 

[Lehmden]

.,..that when in exclusive mode and playing multichannel files with sample rates >48 kHz, Wasapi is falling back to shared mode...

Sample rates >48 kHz with Stereo (2 channels) are working also. Only when you try to play 4.1 or 5.1 (or similar) files with sample rates of exact 44.1 Khz or above 48 kHz in exclusive mode it falls back to shared mode.

 

[morpheus_xx]

I have a guess, we are using BASS: Format: BASS_WASAPI_FORMAT_FLOAT internally, but the WASAPI modes are listed as BASS_WASAPI_FORMAT_24BIT or BASS_WASAPI_FORMAT_16BIT. This could make a difference.

I don't know exactly about the background why we use FLOAT, but it could have to do with getting FFT data for spectrum analyzer. But I might be wrong.

 

[HTPCSourcer]

I don't know exactly about the background why we use FLOAT, but it could have to do with getting FFT data for spectrum analyzer. But I might be wrong.

How big is the effort to change FLOAT against individually set FORMAT_xxBIT (and provide a test build )?

Personally I am not particularly keen on having a spectrum analyzer visualizing my music. But tastes are different. Note that ajs has kicked off a discussion

https://forum.team-mediaportal.com/...now-playing-window.135659/page-2#post-1207036

to move away from BASS for being able to have a spectrum analyzer. Could it be that MP1 is not using FLOAT?

 

[Helios61]

Hi,
i am able to reproduce this issue every time i listen to multichannel files with samplingrate > 48,0 kHz. Playback with WASAPI exclusive mode for samplingrate of 88200 and 6 channels failed (although sound device is capable to handle these files propper). Files with higher Samplingrates are resampled to samplinrate configured in output settings of the sound device, because MP2 falls back to WASAPI shared mode ->

The related log entry ->

[2017-01-04 13:49:35,194] [28560  ] [Thread119] [INFO ] - BassLibrary: Loading player add-ins from 'C:\Program Files (x86)\Team MediaPortal\MP2-Client\Plugins\BassLibraries\Plugins'
[2017-01-04 13:49:35,214] [28580  ] [Thread119] [INFO ] - BassLibrary: Loaded 16 audio decoders.
[2017-01-04 13:49:35,233] [28598  ] [Thread119] [INFO ] - BassLibrary: Stream info: FLAC, 88200Hz, 5.1, 24bit
[2017-01-04 13:49:35,237] [28603  ] [Thread119] [INFO ] - BassLibrary: Stream content: PCM
[2017-01-04 13:49:35,237] [28603  ] [Thread119] [INFO ] - BassLibrary: Preparing for playback: 'BassAudioFileInputSource: D:\ToDo\_Audio_Testfiles\HiRes Flac\09 - Africa (24bit-88,2KHz - 5.1 Channel).flac'
[2017-01-04 13:49:35,335] [28700  ] [BassPlay ] [INFO ] - BassLibrary: Initializing WASAPI device 'LG TV (Intel(R) Display-Audio)' (device no 4)
[2017-01-04 13:49:35,349] [28715  ] [BassPlay ] [WARN ] - BassLibrary: BASS: Failed to initialize WASAPI exclusive mode for samplerate of 88200 and 6 channels. Trying fallback to shared mode.
[2017-01-04 13:49:35,487] [28852  ] [BassPlay ] [INFO ] - BassLibrary: BASS: WASAPI Device successfully initialised

Logs are attached. Upload of testfiles is in progress.

 

[HTPCSourcer]

i am able to reproduce this issue...

So at least you don't have those previously reported crashes and get the same results as Lehmden.

morpheus' working hypothesis with FLOAT could be the lead to resolve the issue.

 

[Helios61]

So at least you don't have those previously reported crashes and get the same results as Lehmden.

Have made a fresh install of MP2 and INTEL Display/HD Audio driver and only configured the musicpart.
So, i think we can change Prefix to Bug, because it is confirmed?

 

[hwahrmann]

@Helios61: Can you please play such a 6ch file with a high sample rate in MP1 and post the log?
i need to compare the results.

 

[Helios61]

@Helios61: Can you please play such a 6ch file with a high sample rate in MP1 and post the log?
i need to compare the results.

I've sold my AVR, the new one will arrive on Thursday. Therefore tests are possibe not before weekend.