[Ham-Mac] DarwinPsk and GarageBand

[Volker Schroer]

Hi all,

DarwinPsk uses the portaudio lib (dated Septemper 2003) and sets the 
sample rate to 11025 Hz using 32 bit float format.

If the hardware does not support this sample rate ( like the built in 
audio in the iBook) ,  portaudio does an upsampling.

Nothing happens to other applications.

But if the hardware does support 11025 Hz (like griffins iMic ), the 
hardware is set to this rate and remains there after finishing.

iTunes works with iMic set to 11025 Hz, but does not change the sample rate.
I dont't know GarageBand, but I suppose that GarageBand does not like 
11025 Hz and does not try set the device to it's desired  sample rate.
So it seems to me  primarily to be a problem of this application.

The patch for portaudio I found  seems never to change the  hardware's 
samplerate but to use a software converter.  One can do that but you 
loose the advantages of your hardware.

I'm propably going to try to save the actual settings of the sound 
device and to restore on exiting .

This won't help in every case, for instance if DarwinPsk should crash.

73, Volker , DL1KSV