On 08/12/2015 20:15, Игорь Ч wrote:
> major one: tone transmission is started and stopped at sinus phase 
> different from 0 degrees (amplitude different from value 0).
>
> minor one: there is short tone burst before the message transmission.
Hi Igor,

the first issue was a defect in WSJT-X, we were not always resetting the 
angle to zero before starting to synthesis the waveform.

The second issue appears to be a defect in VB-Cable. I guess that it is 
not clearing its audio buffers and it plays a spurious small block of 
old audio when the stream is opened. WSJT-X opens the audio output 
stream at the beginning of a transmission and closes it again at the end 
of a transmission.

I have checked in a change to fix the first issue.

73
Bill
G4WJS.

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