@@ -46,21 +46,22 @@ private fun findAudioRecord(sampleRate: Int, channels: Int): AudioRecord? {
class AudioCapture private constructor(
private val sampleRate: Int,
private val channels: Int,
private val frameLengthMs: Int,
private val audioRecord: AudioRecord,
) {
fun start() = audioRecord.startRecording()
fun stop() = audioRecord.stop()
fun release() = audioRecord.release()
fun read(): ShortArray {
val bytes = ShortArray((sampleRate * channels * 0.1).toInt()) // E.g. 16-bit, 48kHz, 1 channel, 100ms
val bytes = ShortArray((sampleRate * channels * frameLengthMs / 1000.0).toInt())
audioRecord.read(bytes, 0, bytes.size)
return bytes
}
companion object {
fun create(sampleRate: Int, channels: Int): AudioCapture? {
fun create(sampleRate: Int, channels: Int, frameLengthMs: Int): AudioCapture? {
val audioRecord = findAudioRecord(sampleRate, channels) ?: return null
return AudioCapture(sampleRate, channels, audioRecord)
return AudioCapture(sampleRate, channels, frameLengthMs, audioRecord)
}
}
}