Problem with counting samples


    Dec 22 2011 | 11:53 am
    Hi!
    I want to count the elapsed samples from the start of an audio signal until a defined threshold is exceeded. The Threshold recognising works fine, but i have a problem with the counter. I use the [count~] object in combination with the [snapshot~] object, because i want the result displayed in a message.
    So here is what i did:
    (The bangs and the stop messages are triggered by the threshold patch)
    Why doesnt that work? Is there another way to do this?

    • Dec 22 2011 | 2:25 pm
      It doesn't work because number~ doesn't work the way you expect it. This may help you:
    • Dec 22 2011 | 3:00 pm
      Thank You! That was easier than expected :)
    • Dec 22 2011 | 5:02 pm
      Thanks to Patrick, i could solve my problem, but now i have another one:
      I finished the patcher and it does, what it should but way too inaccurate! The variation of the meassured predelay is around 600 samples! I was hoping i could reach an accuracy of maybe +-5 samples. Is this utopian in Max, or am i doing something wrong again?
      Here is my patch:
      First i used an sfplay object to play the audio file, so i thought the problem would be the slow hard drive and implemented a buffer. It didnt help at all...
      Any ideas?
    • Dec 22 2011 | 6:20 pm
      If you need sample accurate measures, you need to stay in the MSP domain (even the time needed for a Max message like stop will take a lot of samples!). I don't have Max5 at hand now, so I can't check your patch.
      p