I think DPC is for finding out if the machine can stream audio, how well it can stream audio, typically from disk. Your display shows a good report indeed.

But use of Realtracks is a different situation from what happens in a multitrack recording software, ie the realtime streaming of a number of stored tracks playing back while the realtime streaming of another number of tracks being recorded to disk must take place without latency.

When I load a Realtracks song and hit GEN/PLAY, the bb program starts building a performance file and the disk is accessed to grab the different parts of each audio file that represents a raw realtrack, but it does not grab the file from front to back, it must dance around throughout that file, picking bits and pieces of phrases that are singled out by those .st files.

Then, I'm pretty certain that compilation gets loaded into RAM memory for playback.

Why I'm fairly certain of that is because I can load an all Realtracks song, hit Gen/Play and there is lots of disk activity at first, which continues a short time sometimes even after the song starts to play because there is a routine that will allow the song to start to play after a certain amount of realtrack "assembly" exists, the remainder is processed while the song is playing that "beginning" stack.

Thereafter, I can replay the already loaded song and see very little disk activity.

So it is certainly a good thing to get a low DPC report, I'm sure that can sometimes be a problem if the DPC Latency is rather high, but it also indicates only one type of problem.

Defragging the hard drives addresses another type of problem and that should also be done when troubleshooting the loading times of your realtracks. Yes, I have seen improvements in that department by defragging. Both the c: system drive as well as any other drive where the realtracks may be stored. Don't be misled by the caveat all over the internet about the need for interleaved audio files, that is an entirely different thing and realtracks don't stream that way.


--Mac

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