private fun createNewVisualizerManager() {
        mVisualizerManager?.release()
        mVisualizerManager = NierVisualizerManager().apply {
                    init(object : NierVisualizerManager.NVDataSource {

                        private val mBuffer: ByteArray = ByteArray(512)
                        private val mAudioRecordByteBuffer by lazy { ByteArray(mAudioBufferSize / 2) }
                        private val audioLength = (mAudioRecordByteBuffer.size * 1000F / SAMPLING_RATE).toInt()


                        override fun getDataSamplingInterval() = 0L

                        override fun getDataLength() = mBuffer.size

                        override fun fetchFftData(): ByteArray? {
                            return null
                        }

                        override fun fetchWaveData(): ByteArray? {
                            if (mAudioRecord.recordingState != AudioRecord.RECORDSTATE_RECORDING) {
                                return null
                            }
                            mAudioRecordByteBuffer.fill(0)
                            mAudioRecord.read(mAudioRecordByteBuffer, 0, mAudioRecordByteBuffer.size)
                            var tempCounter = 0
                            for (idx in 0 until mAudioRecordByteBuffer.size step (mAudioRecordByteBuffer.size / (audioLength + mBuffer.size))) {
                                if (tempCounter >= mBuffer.size) {
                                    break
                                }
                                mBuffer[tempCounter++] = mAudioRecordByteBuffer[idx]
                            }

                            return mBuffer
                        }

                    })
        }
    }