細切れのデータを一旦バッファに貯めてからオーディオデバイスへ送りたかった

gistfile1.txt

class AudioTrack {
    private val bufferSize: Int // some value depends on environment
    private val writeBuffer = FloatArray(bufferSize / 4) // actual buffer to send to audio device
    private var writeOffset = 0 // current offset to write next buffer

    fun write(data: FloatArray, offset: Int, size: Int) {
        val remainingWriteBufferSize = writeBuffer.size - writeOffset
        if (remainingWriteBufferSize >= size) {
            System.arraycopy(data, offset, writeBuffer, writeOffset, size)
            writeOffset += size
        } else {
            val firstWriteSize = remainingWriteBufferSize
            System.arraycopy(data, offset, writeBuffer, writeOffset, firstWriteSize)

            audioDevice.write(writeBuffer, 0, writeBuffer.size) // send to audio device

            val secondWriteOffset = offset + firstWriteSize
            val secondWriteSize = size - firstWriteSize
            System.arraycopy(data, secondWriteOffset, writeBuffer, 0, secondWriteSize)
            writeOffset = secondWriteSize
        }
    }
}