diff --git a/lib/audio.c b/lib/audio.c
index 331f5a8..4f9ffbb 100644
--- a/lib/audio.c
+++ b/lib/audio.c
@@ -5,11 +5,13 @@
 
 #include <portaudio.h>
 #include <pa_ringbuffer.h>
+#define _USE_MATH_DEFINES
 #include <math.h>
 #include <string.h>
 
-#define SAMPLE_RATE 192000.0
-#define FRAMES_PER_BUFFER 64
+#define SAMPLE_RATE 44100.0
+#define CPU_RATE 4194304.0
+#define FRAMES_PER_BUFFER 16
 #define SAMPLES_PER_AUDIO_TICK SAMPLE_RATE / 4194304.0
 #define HISTORY_INTERVAL 5
 
@@ -66,6 +68,8 @@ const u8 *square_sample[4] = {
 
 static audio_context ctx;
 static PaStream *stream;
+static float previous_left;
+static float previous_right;
 
 audio_context *audio_get_context() {
     return &ctx;
@@ -281,10 +285,20 @@ void audio_sample_tick() {
     u8 right_vol = ctx.volume_right == 0 ? 1 : ctx.volume_right;
     left *= (float)left_vol/7.0f;
     right *= (float)right_vol/7.0f;
+    double rc = 1.0 / (2.0 * M_PI * (SAMPLE_RATE/2));
+    double dt = 1.0 / CPU_RATE;
+    double alpha = dt / (rc+dt);
+    left = alpha * left + (1.0 - alpha) * previous_left;
+    previous_left = left;
+
+    right = alpha * right + (1.0 - alpha) * previous_right;
+    previous_right = right;
+
     ctx.cycles_needed += emu_get_context()->fast_forward ? SAMPLES_PER_AUDIO_TICK/FAST_FORWARD_SPEED : SAMPLES_PER_AUDIO_TICK;
     if(ctx.cycles_needed > 1){
         ctx.cycles_needed -= 1;
-        
+        //if(Pa_GetStreamWriteAvailable(stream) < 1)
+        //    return;
 
         bool dacs = ctx.ch1_dac || ctx.ch2_dac || ctx.ch3_dac || ctx.ch4_dac;
         float left_out = 0;