diff --git a/sndlock.cpp b/sndlock.cpp
index 8fb2ae1..69480e4 100644
--- a/sndlock.cpp
+++ b/sndlock.cpp
@@ -12,7 +12,7 @@
 #include "imgui_impl_glfw.h"
 #include "imgui_impl_opengl3.h"
 
-#define SND_BITS 16
+#define SND_BITS 24
 #define SND_PCHAN 2
 #define SND_RCHAN 2
 #define SND_RATE 44100
@@ -61,7 +61,7 @@ static void dsp_thread()
     }
 
     uint32_t phase_out[SND_PCHAN] = { 0 };
-    int16_t buf_out[SND_BUFLEN*SND_PCHAN];
+    int32_t buf_out[SND_BUFLEN*SND_PCHAN];
     size_t buf_out_offset = sizeof(buf_out);
 
     uint32_t phase_in[SND_PCHAN] = { 0 };
@@ -97,7 +97,7 @@ static void dsp_thread()
         }
 
         if(revents & POLLIN) {
-            int16_t buf_in[SND_BUFLEN*SND_RCHAN];
+            int32_t buf_in[SND_BUFLEN*SND_RCHAN];
             size_t read = sio_read(hdl, buf_in, sizeof(buf_in));
             // input channels are averaged together to reduce uncorrelated noise
             double scale = pow(0.5, SND_BITS-1)/SND_RCHAN;