On 19. Oct I reported issues on Win 7 & WASAPI Exclusive and do not have any
lights on this issue/bug!
I tested with the given “Play-Exclusive” CPP example given form Matthew van
Eerde with equal failed/buggy driver initialize result.
Test 1 fails:
play-exclusive.exe --device "Speakers (Lynx L22)" --file 4khz.wav
Opening .wav file "4khz.wav"...
The default period for this device is 30000 hundred-nanoseconds, or 132 frames.
IAudioClient::Initialize failed: hr = 0x8007007a
Thread returned failing HRESULT 0x8007007a
Test 2 with different HW/Driver works:
play-exclusive.exe --device "Speakers (RME Babyface)" --file 4khz.wav
Opening .wav file "4khz.wav"...
The default period for this device is 30000 hundred-nanoseconds, or 132 frames.
We ended up with a period of 29932 hns or 132 frames.
Successfully played all 44100 frames.
Any help on this … 😃
Best Regards
Hp. Widmer
HpW-Works Support
Mailto:support@xxxxxxxxxxxxx
Website: <http://www.hpw-works.com> http://www.hpw-works.com
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Support HpW-Works.com
Sent: Donnerstag, 19. Oktober 2017 10:21
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Windows 7 (only) WASAPI Exclusive Issues
Well,
Have some issues on Windows 7 / 64 bit and may get here some light on this
WASAPI issues:
1. Using a Lynx L22 PCI Card and latest drivers (also older drivers
releases): on WASAPI initialization I get an Error x8007007A, what is not
presented/listed on MS/WSAPAI initialize :
The used sample size/hhns is always hold below the 500ms level…
BTW: No issue on Win10 & Win10 Creator update!!
2. I use on the Exclusive Events an 1 second timeout timer to control the
message flow.
NOW using the RME ADI-2 Pro, the first event is given/fired approx. after 1.2
.. 1.5 seconds … Follow on events (after the first event) are always within the
1 second timeout.
The question rises is this a normal behavior on Win 7, while on Win 10 this has
not be seen yet. This would mean, the first event timeout should be somewhat
larger than the follow-on.
Best Regards
Hp. Widmer
HpW-Works Support
<Mailto:support@xxxxxxxxxxxxx> Mailto:support@xxxxxxxxxxxxx
Website: <http://www.hpw-works.com> http://www.hpw-works.com