Fails to create buffer with 24 bit/96K sampling

[cfmcmillan]

Using a GTX 1050 ti HDMI output for multi-channel audio output with Hauptwerk as the host. Buffering works correctly when sampling is set to 24 bit/48K. However, when it is set to 24 bit/96K, Hauptwerk generates the following error message:

"Could not create audio output buffers for ASIO driver 'ASIO:FlexASIO' with a buffer size of 1024 sample frames. Please try re-booting the computer. (Operating system message: ASE_HWMalfunction, code: -999)

Rebooting doesn't fix the problem, setting the sample rate back to 48K does.

[dechamps]

One thing that slipped my mind and that I should have led with during our email conversation: if you want a given sample rate to work, you need to make sure that it matches the sampling rate that Windows is using with your input and output devices, as configured in the Windows sound control panel. That's a limitation of WASAPI Shared, which doesn't support resampling.

From the README:

WASAPI (at least on my test system) seems to require that the sample rate used by the application matches the sample rate configured for the device (which is configurable in the Windows audio control panel). Corollary: if you use ASIO in both directions, your input device's sample rate need to match the output device's, else FlexASIO will not return any usable sample rates. In some ways this could be considered a feature since it guarantees that no unwanted sample rate conversions will take place.

So, in your case, you need to make sure your HDMI audio output is set to 96 kHz in the Windows audio settings (not just your application). With most host applications, you also need to make sure that your default input device is also set to 96 kHz, even if you're not using the input. Please confirm that is the case.

[cfmcmillan]

Etienne - Yes - I assumed that and set the sampling rate in Windows 10. Let me check the input - I'm not sure whether one is even set. I'll go look. Charlie

…

On Tue, Oct 16, 2018 at 2:12 PM Etienne Dechamps ***@***.***> wrote: One thing that slipped my mind and that I should have led with during our email conversation: if you want a given sample rate to work, you need to make sure that it matches the sampling rate that Windows is using with your input *and* output devices, as configured in the Windows sound control panel. That's a limitation of WASAPI Shared, which doesn't support resampling. So, in your case, you need to make sure your HDMI audio output is set to 96 kHz in the Windows audio settings (not just your application). You also need to make sure that your default input device is also set to 96 kHz, *even if you're not using the input*. Please confirm that is the case. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AqKfj2z0XkTpn5SogTd6Pc9FdosyXVbvks5ulj2agaJpZM4XhQJf> .

-- Charles McMillan

[cfmcmillan]

Etienne - Sorry - I can't do the test on the input. I have input devices that should go to 96K sampling. However, they are old and the drivers don't work right in windows 10. Charlie On Tue, Oct 16, 2018 at 2:30 PM Charles McMillan <mcmillan@alum.mit.edu> wrote:

…

Etienne - Yes - I assumed that and set the sampling rate in Windows 10. Let me check the input - I'm not sure whether one is even set. I'll go look. Charlie On Tue, Oct 16, 2018 at 2:12 PM Etienne Dechamps ***@***.***> wrote: > One thing that slipped my mind and that I should have led with during our > email conversation: if you want a given sample rate to work, you need to > make sure that it matches the sampling rate that Windows is using with your > input *and* output devices, as configured in the Windows sound control > panel. That's a limitation of WASAPI Shared, which doesn't support > resampling. > > So, in your case, you need to make sure your HDMI audio output is set to > 96 kHz in the Windows audio settings (not just your application). You also > need to make sure that your default input device is also set to 96 kHz, *even > if you're not using the input*. Please confirm that is the case. > > — > You are receiving this because you authored the thread. > Reply to this email directly, view it on GitHub > <#11 (comment)>, > or mute the thread > <https://github.com/notifications/unsubscribe-auth/AqKfj2z0XkTpn5SogTd6Pc9FdosyXVbvks5ulj2agaJpZM4XhQJf> > . > -- Charles McMillan

-- Charles McMillan

[dechamps]

Ok. Once #4 and #5 are done we can take a closer look as to why exactly FlexASIO is failing and what can be done about it.

[cfmcmillan]

Let me know if I can help - probably with the testing. charlie

On Tue, Oct 16, 2018 at 4:28 PM Etienne Dechamps ***@***.***> wrote: Ok. Once #4 <#4>, #5 <#5>, and #6 <#6> are done we can take a closer look as to why exactly FlexASIO is failing and what can be done about it. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AqKfj3B4ONoLJYsSn5kL1Lvj27hM0lOeks5ull2jgaJpZM4XhQJf> .

-- Dr. Charles F. McMillan

[dechamps]

@cfmcmillan: please try again with the new FlexASIO 0.3 release. If it still doesn't work, please gather logs as explained in the README and attach them here. I'm most interested in the logs when you attempt to use FlexASIO with a 96 kHz sample rate in your application, though it wouldn't hurt to attach FlexASIOTest logs as well.

[cfmcmillan]

Etienne - Attached is the log file. It doesn't look like it's working at any sample rate now. From my quick look at the log file, it looks as though, at least in some cases, the Hauptwerk sample set is trying to set the sample rate to 44.1. However, something isn't working. At the beginning of the file, you can also see that I ran FlexASIOTest - it seemed to work alright. I had several different sample rates set in windows. Best, Charlie

…

On Wed, Oct 24, 2018 at 4:17 PM Etienne Dechamps ***@***.***> wrote: @cfmcmillan <https://github.com/cfmcmillan>: please try again with the new FlexASIO 0.3 <https://github.com/dechamps/FlexASIO/releases/tag/flexasio-0.3> release. If it still doesn't work, please gather logs as explained in the README and attach them here. I'm most interested in the logs when you attempt to use FlexASIO with a 96 kHz sample rate in your application, though it wouldn't hurt to attach FlexASIOTest logs as well. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AqKfjwuT-0NzuJoKTz4KnL-bN3-64VPVks5uoObfgaJpZM4XhQJf> .

-- Charles McMillan

[dechamps]

@cfmcmillan: I'm afraid I didn't get your logfile. I don't think you can send files to Github by commenting via e-mail; you need to comment directly on the GitHub issue page and attach your logfile there.

[cfmcmillan]

OK - Let me work it. Unfortunately, I have a busy schedule for the next day or two, so it may be a few days before I can get it to you. I still have it on the disk. Best, Charlie

…

On Thu, Oct 25, 2018 at 4:16 PM Etienne Dechamps ***@***.***> wrote: @cfmcmillan <https://github.com/cfmcmillan>: I'm afraid I didn't get your logfile. I don't think you can send files to Github by commenting via e-mail; you need to comment directly on the GitHub issue page and attach your logfile there. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AqKfj4kV0ENWJi3E15KTxgFVAd2GKBEmks5uojgxgaJpZM4XhQJf> .

-- Charles McMillan

[dechamps]

@cfmcmillan: you should be able to work around your issue with FlexASIO 0.4 which I just released, as it allows you to choose which backend to use. I would expect the new default backend, DirectSound, to not have this issue.

In any case, if you're still having this problem with the WASAPI Shared backend, I am still interested in seeing a log, if only to determine if there is indeed a bug to be hunted down.

[cfmcmillan]

Etienne -

Sorry for the long delay - here's the log file. With luck, this will come through.

FlexASIO.log

Charlie

[dechamps]

Thanks. You were saying that you were having problems with the sample rate set to to 96 kHz. However, according to the log, your application is not even trying to use 96 kHz, it's trying to use 44.1 kHz :

2018-10-24T19:31:20.7767062-06:00 4312 6636 CFlexASIO::setSampleRate(44100)

That said, 96 kHz wouldn't work anyway, according to FlexASIOTest :

2018-10-24T19:18:49.7875132-06:00 4976 6120 CFlexASIO::canSampleRate(96000)
2018-10-24T19:18:49.7875654-06:00 4976 6120 CFlexASIO::OpenStream(96000, 0)
2018-10-24T19:18:49.7880569-06:00 4976 6120 [PortAudio] WASAPI ERROR HRESULT: 0x88890008 : AUDCLNT_E_UNSUPPORTED_FORMAT
 [FUNCTION: CreateAudioClient FILE: c:\users\edechamps\documents\portaudio\src\hostapi\wasapi\pa_win_wasapi.c {LINE: 2597}]
2018-10-24T19:18:49.7881061-06:00 4976 6120 [PortAudio] WASAPI ERROR PAERROR: -9997 : Invalid sample rate
 [FUNCTION: ActivateAudioClientInput FILE: c:\users\edechamps\documents\portaudio\src\hostapi\wasapi\pa_win_wasapi.c {LINE: 3037}]
2018-10-24T19:18:49.7881344-06:00 4976 6120 [PortAudio] WASAPI ERROR PAERROR: -9996 : Invalid device
 [FUNCTION: OpenStream FILE: c:\users\edechamps\documents\portaudio\src\hostapi\wasapi\pa_win_wasapi.c {LINE: 3226}]
2018-10-24T19:18:49.7881617-06:00 4976 6120 Cannot do this sample rate: Invalid device

That said, it looks like your application only cares about output, not input. Despite that, FlexASIO still tries to open an input, because of #24 (which should be fixed eventually). This is probably making your life harder because it requires the input device to have a matching sample rate. To avoid this, use FlexASIO 0.5a and the following configuration:

backend = "Windows WASAPI"

[input]
device = ""

This should make things easier because it will tell FlexASIO not to attempt to use an input at all, so that you only need to care about the settings of the output device. If you are still having issues with that configuration, please send another log.

[dechamps]

FlexASIO 1.0 which I just released includes some improvements in this area. Please try it and send an updated log if you still can't make it work.

[cfmcmillan]

Etienne -

Unfortunately, I have changed my hardware and can no longer test in the configuration I was using before. Many thanks for your help in working to solve this.