BUFFERS.md

Buffers and File Dependencies

The buffer~ objects in our RNBO patch will create externalDataRefs in the exported patcher, which we can fill in Unity by loading an AudioClip with the plugin handle's .LoadDataRef() method.

To load an AudioClip into the DataRef identified with the above "sampleOne" buffer, we'll add an AudioClip field in Unity's inspector, get the samples and channels from whatever audio file we drag into that field, and load the data accordingly.

using UnityEngine;

public class DrumKit : MonoBehaviour
{
    QuantizedBuffersHelper quantizedBuffersHelper;
    QuantizedBuffersHandle myQuantizedBuffersPlugin;

    const int instanceIndex = 1;

    [SerializeField] AudioClip buffer;

    void Start()
    {
        quantizedBuffersHelper = QuantizedBuffersHelper.FindById(instanceIndex);
        myQuantizedBuffersPlugin = quantizedBuffersHelper.Plugin;
        
        if (buffer)
          {
              float[] samples = new float[buffer.samples * buffer.channels];
              buffer.GetData(samples, 0);
              myQuantizedBuffersPlugin.LoadDataRef("sampleOne", samples, buffer.channels, buffer.frequency);
          }
    }

}

The script above has created a field Buffer in the inspector, which can take audio files that we've added into our Project.

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