How to split up AudioClip into chunks of 10ms?

Questions & Answers
1

Hi, So as part of a facial lip sync and animation package I need to spit up an Audio Clip into small chunks of 10ms, then convert them into a byte and feed it to the rest of the system.

Now Ive managed to find a way to convert the Audio clips to a byte but Im not sure how to slip up the Audio clip before hand. The audio clips are generated on the fly by an external system and so i can cut them up before feeding them to the program. Im not really sure where to even start with this, could I try and separate the byte into diffrent parts or is there a way to cut up and AudioClip on the fly ?

Any help is greatly appreciated, Thanks!

2

You can use the following code I made for trimming AudioClips:

 //Returns a trimmed version of the <originalClip>
    //originalClip - the originial clip
    //startPosSec - The starting position in seconds (eg: 1, 0.34, 2782.12, etc.)
    //lengthSec - The new length of the AudioClip in seconds (eg: 1, 0.34, 2782.12, etc.)
    private AudioClip TrimAudioClip( AudioClip originalClip, float startPosSec, float lengthSec)
    { 
        var originalClipSamples = new float[originalClip.samples];
        originalClip.GetData(originalClipSamples, 0);

        //converts startPosSec & takeAmountSec from seconds to sample amount
        int newStartPosSample = (int)(startPosSec * originalClip.frequency);
        int newLengthSecSample = (int)(lengthSec * originalClip.frequency);

        //gets the trimmed version of the orignalClipSamples
        var newClipSamples = originalClipSamples.Skip(newStartPosSample).Take(newLengthSecSample).ToArray();

        //generates a new empty clip and sets its data according to the newClipSamples
        AudioClip resClip = AudioClip.Create(originalClip.name, newClipSamples.Length, originalClip.channels, originalClip.frequency, false);
        resClip.SetData(newClipSamples, 0);

        return resClip;
    }