What are frames?

stgislander

This is kind of a newbie question so I thought I'd put in Getting Started. As I'm waiting for parts to arrive to begin testing, I've been reviewing the Bela example code and libraries. I looking at various analog and digital I/O routines, I see the term "frame" used. For example:

From the Bela.h file: static inline void analogWrite(BelaContext *context, int frame, int channel, float value);

From the AnalogOut example file: for(unsigned int n = 0; n < context->analogFrames; n++) {

Obviously it is an integer and is declared somewhere, but what is it?

giuliomoro

Please see the explanation here https://learn.bela.io/using-bela/about-bela/understanding-real-time/

stgislander

Thanks giuliomoro. That is a huge help. I'm still learning my way around the documentation.

Regarding the statement, " By default, the buffer size is 8 analog frames or 16 audio frames." Would that mean the default buffer size is also 16 digital frames?

giuliomoro

yes that's correct, because the number of digital frames is the same as the number of audio frames (because their sampling rates are the same).