Christoph Bartelmus wrote:

Bob van Loosen "" wrote:
Latest patch and documentation.

What's the reason for changing SAMPLE_RATE to 48000?
Unless there's a very good reason I'd like to keep the current value to  
avoid problems with soundcards that only support 44100.

A higher samplerate increases the rolloff frequency of the soundcard's internal lowpass, considering the high carrier frequency and the square carrier modulation you need all the bandwidth you can get to ensure reliable transmission.
I don't think it's much of an issue considering that almost all soundcards do 48 khz for the past 8 years or so, even the really cheap ones.