[wdmaudiodev] Re: Windows 7 wave cyclic driver
- From: "Matthew van Eerde" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "Matthew.van.Eerde" for DMARC)
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Wed, 1 Mar 2017 19:59:40 +0000
What WAVEFORMATEX is being passed to your NewStream implementation, and what
WAVEFORMATEX is in the “fmt ” chunk of the captured .wav file?
From: Farrah Avanesov<mailto:favanesov@xxxxxxxxxxxxx>
Sent: Wednesday, March 1, 2017 11:53 AM
Subject: [wdmaudiodev] Re: Windows 7 wave cyclic driver
On Wed, 2017-03-01 at 18:29 +0000, Matthew van Eerde wrote:
The advantage of using a sine wave (as opposed to a sentinel value
like 0xdeadbeef) is that sine waves tend to be resilient to audio
processing (changing from int to float, dynamic range compression
etc.) but sentinel values are very fragile
I used the following sine wave:
but the captured wav file has a series of 4 to 5 0x0080 followed by
0xff7f, 0x0080, 0xff7f, and repeats.
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