Και όπως γράφει και στη σελίδα 21 του manual της κάρτας σου:
ASIO/WDM BUFFER SIZE – In this field you can select the buffer size you wish to work with. Smaller buffer sizes result in lower latency (the
time it takes for your input signal to pass through your audio software and appear at the outputs), but may not function well with slower
systems. The default buffer size setting is 256. This setting may adequately serve your purposes, but if you wish to, you can experiment with
lower settings. If you experience stuttering or crackling in your audio playback, try using a larger buffer size.
Όπου το buffer είναι ο αριθμός των samples.