>>I'm just starting to write my first alsa-lib midi applications. I'm >>wondering what the acronym ppq stands for and what it means (especially >>in relation to tempo). Unfortunately, I didn't find any docu on the >>topic of tempo.
> int ppq; /* time resolution, ticks/quarter */ [ ... ] >the value is usually synonymous to the 'division' of a standard midi >file. "ppq" stands for "parts per quarter". as the header file suggests without much explanation, its length of a quarter note expressed in clock ticks. if the meter is 4/4 and the tempo is 120bpm, then a quarter note lasts 0.5 seconds. if the clock used for timing ticks 100 times per second, there are 50 clock ticks per quarter note, so ppq=50. --p _______________________________________________________________ Don't miss the 2002 Sprint PCS Application Developer's Conference August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
