Topic: I/O Latencies
I use an RME Fireface 400 (RME driver version 3.124) in a lab as measurement technology (not in a sound studio).
I measured the total latency (input + output) by comparing a playback and a recording signal obtained by connecting an output of the soundcard directly to an input with a balanced jack-jack cable.
SoundMexPro offers the possibility to return the input and output latency of the soundcard specified by RME as properties. Then I added up those two latencies and compare the sum with the total latency measured before.
The two results for the total latency always differ by 3 samples, independent of the buffer size and sampling frequency. Does anyone know where this difference of 3 samples comes from?