diff --git a/examples/audio-trough.pd b/examples/audio-trough.pd
new file mode 100644
index 0000000..529bd3e
--- /dev/null
+++ b/examples/audio-trough.pd
@@ -0,0 +1,9 @@
+#N canvas 653 457 450 300 12;
+#X obj 151 125 adc~ 1 2 3 4 5 6;
+#X obj 152 184 dac~ 1 2 3 4 5 6;
+#X connect 0 0 1 0;
+#X connect 0 1 1 1;
+#X connect 0 2 1 2;
+#X connect 0 3 1 3;
+#X connect 0 4 1 4;
+#X connect 0 5 1 5;
diff --git a/src/LibPDEngine.cpp b/src/LibPDEngine.cpp
index 7f4ee6e..b04fae3 100644
--- a/src/LibPDEngine.cpp
+++ b/src/LibPDEngine.cpp
@@ -4,7 +4,7 @@
 #include <fstream>
 using namespace std;
 
-#define BUFFERSIZE 4096
+#define BUFFERSIZE MAX_BUFFER_SIZE * NUM_ROWS
 
 void chair_write_patch_to_file(const string &patch, const string &path, const string &name )
 {
@@ -34,6 +34,7 @@ struct LibPDEngine : ScriptEngine {
 	}
 	// // variables for libpd
 	t_pdinstance *_lpd;
+	int _pd_block_size = 64;
   	int _sampleRate = 0;
   	int _ticks = 0;
   	float _output[BUFFERSIZE];
@@ -50,27 +51,43 @@ struct LibPDEngine : ScriptEngine {
 		ProcessBlock* block = getProcessBlock();
 
 	 	_sampleRate = block->sampleRate;
-	  
+
+	 	setBufferSize(_pd_block_size);
+	  	setFrameDivider(1);
 	  	libpd_init();
 	  	_lpd = libpd_new_instance();
 
 	  	libpd_set_instance(_lpd);
-	  	libpd_init_audio(2, 2, _sampleRate);
+	  	libpd_init_audio(NUM_ROWS, NUM_ROWS, _sampleRate);
 	  	//cout << "_lpd is initialized" << endl;
 	  
 	  	//cout << "num od pd instances: " << libpd_num_instances() << endl;
 	  
 	  // compute audio    [; pd dsp 1(
-	  	libpd_start_message(1); // one entry in list
+	  	libpd_start_message(1); // one enstry in list
 	  	libpd_add_float(1.0f);
 	  	libpd_finish_message("pd", "dsp");
 	  
 	  	std::string name = "test.pd";
-	  	std::string patch = "#N canvas 333 425 105 153 10;\n"
+	  	std::string patch = "#N canvas 653 457 450 300 12;\n"
+							"#X obj 151 125 adc~ 1 2 3 4 5 6;\n"
+							"#X obj 152 184 dac~ 1 2 3 4 5 6;\n"
+							"#X connect 0 0 1 0;\n"
+							"#X connect 0 1 1 1;\n"
+							"#X connect 0 2 1 2;\n"
+							"#X connect 0 3 1 3;\n"
+							"#X connect 0 4 1 4;\n"
+							"#X connect 0 5 1 5;";
+
+
+
+
+
+	  	/*"#N canvas 333 425 105 153 10;\n"
 	                "#X obj 32 79 dac~;\n"
 	                "#X obj 32 27 adc~;\n"
 	                "#X connect 1 0 0 0;\n"
-	                "#X connect 1 1 0 1;";
+	                "#X connect 1 1 0 1;";*/
 
 	  	//libpd_openfile(patch.c_str(), path.c_str());
 
@@ -82,26 +99,24 @@ struct LibPDEngine : ScriptEngine {
 	int process() override {
 		// block
 		ProcessBlock* block = getProcessBlock();
-		int curr_bufSize = 256;
-		block->bufferSize = curr_bufSize;
-		display(std::to_string(curr_bufSize));
 
-		const int nChans = 2;
-		  
+		display(std::to_string(block->bufferSize));
+
 		// pass samples to/from libpd
-		_ticks = curr_bufSize / 64;
-		for (int s = 0; s < curr_bufSize; s++) {
-		    for (int c = 0; c < nChans; c++) {
-		      _input[s*nChans+c] = block->inputs[c][s];
+		_ticks = 1;//curr_bufSize / 64;
+		int rows = NUM_ROWS;
+		for (int s = 0; s < _pd_block_size; s++) {
+		    for (int r = 0; r < rows; r++) {
+		      _input[s*rows+r] = block->inputs[r][s];
 		    }
 		}
 		
 		libpd_set_instance(_lpd);
 		libpd_process_float(_ticks, _input, _output);
 		
-		for (int s = 0; s < curr_bufSize; s++) {
-		    for (int c = 0; c < nChans; c++) {
-		    	block->outputs[c][s] = _output[s*nChans+c];
+		for (int s = 0; s < _pd_block_size; s++) {
+		    for (int r = 0; r < rows; r++) {
+		    	block->outputs[r][s] = _output[s*rows+r];
 		    }
 		  }