audioenginebaseapo.idl in the SDK exposes these constants:
cpp_quote("// Min and max framerates for the engine")
cpp_quote("#define AUDIO_MIN_FRAMERATE 10.0 // Minimum
frame rate for APOs")
cpp_quote("#define AUDIO_MAX_FRAMERATE 384000.0 // Maximum
frame rate for APOs")
From: Tim Roberts<mailto:timr@xxxxxxxxx>
Sent: Friday, May 27, 2016 10:08 AM
To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] Re: MS Windows maximal supported sample rate by the OS
Support HpW-Works.com wrote:
Is there any known limitation on the audio sample rate (this means, lower than
the given integer value)…
Or in other words 768kHz or any higher rates will be supported by the OS using
Windows 7/8/10 & WDM & WASAPI & WASAPI Exclusive interface?
Why? That's not audio. That's radio. The AM radio band begins at 530kHz.
The range of human hearing ends somewhere below 30kHz.
Or is there any other limitation by the underlying HW device architecture?
The HDAudio spec, which is dominant today, is limited to 192kHz. Even that is
overkill.
--
Tim Roberts, timr@xxxxxxxxx<mailto:timr@xxxxxxxxx>
Providenza & Boekelheide, Inc.
