Obviously Hp is doing test & measurement, since that is what his application
does. Human hearing has nothing to do with it.
ASIO would be the preferred method of communicating with hardware that can
do greater than 384K. That removes any limitation imposed by others between
the application and the hardware.
Thank you,
David A. Hoatson
Lynx Studio Technology, Inc.
<http://www.lynxstudio.com/> www.lynxstudio.com
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Matthew van Eerde
(Redacted sender "Matthew.van.Eerde" for DMARC)
Sent: Friday, May 27, 2016 11:07 AM
To: Tim Roberts <timr@xxxxxxxxx>; wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: MS Windows maximal supported sample rate by the
OS
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.
