  */
 
 void generateSignalCPU(float * output, String string, Synthesizer synth) {
-	int i, j;
+	int i;
 	Matrix state_tmp, output_chunk;
 	Matrix *pointer_state_read, *pointer_state_write;
 	Timer roundtrip;

 */

void generateSignalGPU(float * output, String string, Synthesizer synth) {
	int i, j;

	Matrix device_MatrixAp;
	Matrix device_MatrixCA;

			cudaMemcpyAsync(pointer_output_chunk_write->elements, pointer_device_output_chunk_read->elements, m_size(output_chunk_write), cudaMemcpyDeviceToHost, streams[2]);
			cudaEventRecord(Memcpy_stop, streams[2]);

			memcpy(&output[i], pointer_output_chunk_read->elements, sizeof(float) * synth.blocksize);

			if(i == 0) {
				time_stop(&turnaround);
