diff --git a/soundcube-firmware/soundcube-firmware.ino b/soundcube-firmware/soundcube-firmware.ino
index b5ea39f..b4f096f 100644
--- a/soundcube-firmware/soundcube-firmware.ino
+++ b/soundcube-firmware/soundcube-firmware.ino
@@ -1,15 +1,17 @@
+
 #include <ArduinoJson.h>
 #include <ArduinoJson.hpp>
 
 #include <TCA9555.h>
 #include <AS5600.h>
+#include <DAC8552.h>
+
 #include <FastLED.h>
 #include <PWMAudio.h>
 #include <I2S.h>
 #include <SPI.h>
 #include <SD.h>
 #include "codec.h"
-#include "ringbuffer.h"
 #include "wavestream.h"
 
 #define HAPTIC 1
@@ -25,9 +27,7 @@
 int16_t buffer[SIZE];
 int16_t buffer2[ECHO];
 
-RingBuffer<int16_t> ringbuffer[NSTREAMS];
-
-WaveStream stream;
+WaveStream stream[NSTREAMS];
 
 File streams[NSTREAMS];
 bool streams_loaded = false;
@@ -39,6 +39,8 @@ TLV320AIC3204 codec;
 TCA9555 TCA(0x20, &Wire1);
 AS5600 ENC(&Wire1);
 
+DAC8552 dac(9, &SPI1);
+
 PWMAudio ui_snd(8);
 
 enum BUTTON {CVINL, CVINR, INL, INR, OUTR, OUTL, CVOUTR, CVOUTL, RIGHT, LEFT, SELECT, DEBUG1, DEBUG2, DEBUG3};
@@ -111,11 +113,9 @@ void codec_transmit() {
   
   for(int i = 0; i < count; i++){
     int16_t sample = 0;
-//    for(int j = 0; j < NSTREAMS; j++){
-      int j = active % NSTREAMS;
-      if(!ringbuffer[j].isEmpty()) sample = ringbuffer[j].pop();
-      buffer[i] += (sample);
-  //  }
+    int j = active % NSTREAMS;
+    sample = stream[j].get();
+    buffer[i] += (sample);
   }
   
   i2s.write((const uint8_t *)&buffer, count * sizeof(int16_t));
@@ -160,9 +160,11 @@ void setup() {
 
   i2s.setFrequency(48000);
 
-  for(int i = 0; i < NSTREAMS; i++){
-    ringbuffer[i].setSize(RINGBUFFER);
-  }
+  SPI1.setSCK(10);
+  SPI1.setTX(11);
+  SPI1.begin();
+
+  dac.begin();
 
   FastLED.addLeds<NEOPIXEL, 4>(edge_leds, 11);
   FastLED.addLeds<NEOPIXEL, 5>(ui_leds, 74);
@@ -256,10 +258,6 @@ void setup() {
 
   i2s.setBuffers(6, SIZE * sizeof(int16_t) / sizeof(uint32_t));
 
-  for(int i = 0; i < NSTREAMS; i++){
-    ringbuffer[i].begin();
-  }
-
   if(!i2s.begin(48000)){
     Serial.println("I2S error!");
     while(100);
@@ -270,8 +268,9 @@ void setup() {
       char filename[40];
       sprintf(filename, "/sound/%d.wav", i+1);
       if(SD.exists(filename)){
-        streams[i] = SD.open(filename);
-        streams[i].seek(44, SeekSet);
+        stream[i].load(SD.open(filename));
+        stream[i].begin();
+        stream[i].play();
       } else {
         for(int k = 0; k < 3; k++){
           digitalWrite(6, HIGH);
@@ -284,16 +283,6 @@ void setup() {
     streams_loaded = true;
   }
 
-  // if(!ringbuffer.isFull()){
-  //   int cnt = 0;
-  //   while (!ringbuffer.isFull() && cnt < RINGBUFFER) {
-  //     int16_t sample = stream1.read();
-  //     ringbuffer.push(sample);
-  //     if(!stream1.available()) stream1.seek(48000*6, SeekSet); 
-  //     cnt++;
-  //   }
-  // }
-
   digitalWrite(6, HIGH);
   delay(25);
   digitalWrite(6, LOW);
@@ -304,6 +293,8 @@ void setup() {
 
 }
 
+bool dactest = false;
+
 void loop() {
   position = ENC.getCumulativePosition();
 
@@ -386,11 +377,19 @@ void loop() {
       speaker(speakerToggle);
     }
 
+    if(buttons[DEBUG2]) {
+      dactest = !dactest;
+      dac.setValue(0, dactest ? 0 : 32768);
+      dac.setValue(1, !dactest ? 0 : 65535);
+    }
+
     Serial.println(codec.getVolumeL());
 
     buttonChanged = false;
   }
 
+  //ac.setValue(0, dactest ? 0 : sin((float)millis() / 100.0f) * 32768 + 32768);
+
   // empty LED matrix
   for (int i = 0; i < 13; i++) {
     ui_leds[lut_matrix[i]] = CRGB(0, 0, 0);
@@ -399,14 +398,6 @@ void loop() {
   // set active LED matrix LED
   ui_leds[lut_matrix[active]] = CRGB(100, 100, 100);
 
-  if(active == 1) {
-    digitalWrite(12, HIGH);
-    digitalWrite(13, HIGH);
-  } else {
-    digitalWrite(12, LOW);
-    digitalWrite(13, LOW);
-  }
-
   if(position < 0) position += 4096;
   active_led_ring = (position / 32) % 48;
   
@@ -424,5 +415,9 @@ void setup1(){
 }
 
 void loop1(){
-
+  if(streams_loaded) {
+    for(int i = 0; i < NSTREAMS; i++){
+      stream[i].stream();
+    }
+  }
 }
\ No newline at end of file
diff --git a/soundcube-firmware/wavestream.h b/soundcube-firmware/wavestream.h
index 0e42a25..80ee157 100644
--- a/soundcube-firmware/wavestream.h
+++ b/soundcube-firmware/wavestream.h
@@ -64,15 +64,22 @@ struct WaveFile{
     return true;
   }
   
-  bool readblock(int16_t samplebuffer[]){
+  void readblock(){
     uint8_t samplebyte[blockalign];
 
     file.read(samplebyte, blockalign);
     if(!file.available() && loop) file.seek(44, SeekSet);
     
     int16_t sample = (samplebyte[1] << 8) + samplebyte[0];
-    ringbuffer[i].push(sample);
+    buffer.push(sample);
+  }
 
+  int16_t get(){
+    return buffer.pop();
+  }
+
+  void stop(){
+    file.seek(44, SeekSet);
   }
 
   bool loop = false;
@@ -88,39 +95,43 @@ struct WaveFile{
 
 class WaveStream{
   public:
-  WaveStream(){}
+    WaveStream(){}
 
-  void begin(){}
-  void update(){}
+    void begin(){
+      wavefile.buffer.setSize(8192);
+    }
 
-  bool load(int stream, File wavefile){
-    if(stream < 0 || stream > 7) return false;
-    if(!wavefiles[stream].load(wavefile)) return false;
-    return true;
-  }
+    bool load(File _wavefile){
+      if(!wavefile.load(_wavefile)) return false;
+      return true;
+    }
 
-  void start(int stream){}
-  void stop(int stream){}
-  void pause(int stream){}
+    void play(){playing = true;}
+    void stop(){
+      playing = false;
+      wavefile.stop();
+    }
+    void pause(){playing = false;}
 
-  void stopAll(){}
-  void startAll(){}
-  void pauseAll(){}
-
-  private:
-  WaveFile wavefiles[8];
-
-  void stream(){
-    for (int i = 0; i < NSTREAMS; i++) {
-      if(!wavefiles[i].buffer.isFull()){
+    void stream(){
+      if(!wavefile.buffer.isFull() && playing){
         int cnt = 0;
-        while (!wavefiles[i].buffer.isFull() && cnt < 10000) {
-          wavefiles[i].readblock(samplebyte);
-
+        while (!wavefile.buffer.isFull() && cnt < 10000) {
+          wavefile.readblock();
           cnt++;
         }
       }
     }
-  }
-  
+    
+    int16_t get(){
+      return playing ? wavefile.get() : 0;
+    }
+
+  private:
+
+    WaveFile wavefile;
+
+    bool playing = false;
+
+
 };
\ No newline at end of file