1 files changed, 0 insertions, 32 deletions
diff --git a/audio/filter/tools.c b/audio/filter/tools.c
index 231477927f..8943f29f8b 100644
--- a/audio/filter/tools.c
+++ b/audio/filter/tools.c
@@ -40,24 +40,6 @@ int af_from_dB(int n, float* in, float* out, float k, float mi, float ma)
   return AF_OK;
 }
 
-/* Convert from gain value to dB. Returns AF_OK if of and AF_ERROR if
- * fail. gain=0 will become -200 dB. k is just a multiplier. */
-int af_to_dB(int n, float* in, float* out, float k)
-{
-  int i = 0;
-  // Sanity check
-  if(!in || !out)
-    return AF_ERROR;
-
-  for(i=0;i<n;i++){
-    if(in[i] == 0.0)
-      out[i]=-200.0;
-    else
-      out[i]=k*log10(in[i]);
-  }
-  return AF_OK;
-}
-
 /* Convert from ms to sample time */
 int af_from_ms(int n, float* in, int* out, int rate, float mi, float ma)
 {
@@ -72,20 +54,6 @@ int af_from_ms(int n, float* in, int* out, int rate, float mi, float ma)
   return AF_OK;
 }
 
-/* Convert from sample time to ms */
-int af_to_ms(int n, int* in, float* out, int rate)
-{
-  int i = 0;
-  // Sanity check
-  if(!in || !out || !rate)
-    return AF_ERROR;
-
-  for(i=0;i<n;i++)
-    out[i]=1000.0 * (float)in[i]/((float)rate);
-
-  return AF_OK;
-}
-
 /*
  * test if output format matches
  *  af: audio filter