Block size: Select the block size. This defines the size of the sent audio packages. You can choose a block size of between 64 and 4096 samples. While a larger block size may make your connection more stable, it adds latency and sometimes even decreases transmission quality. We usually work with a block size of 128 or 64 samples. Each peer can use their own block size.
Send channels: choose the number of channels you want to use by clicking on the respective box; the number of channels should correspond to your chosen Ardour template.
Rec. buffer: Choose the receive buffer by writing a number in milliseconds. This defines the buffer queuing and helps circumvent jitter in the audio connection from the remote peer(s). If you hear drops in the incoming audio signal, you can increase the receive buffer. Nevertheless, a higher receive buffer also leads to higher latency. Each peer can choose an own receive buffer; nevertheless, as it is applied to all incoming streams, the receive buffer cannot be set per individual stream.
Bit-res: The resolution is preset to 16 bit and can not be changed.
Sample rate: The sample rate is automatically set according to the Audio-MIDI settings in Ardour. All peers need to use the same sample rate, otherwise the connection cannot be established.