volume up just twice - 4x generates echo

diff --git a/gsm-voice-routing.c b/gsm-voice-routing.c
index e8b0aca8293b3c829301524f6a2ec9728f5b2184..13ef194cb68c56c7acaf6c997092c73ea87b18c5 100644 (file)
--- a/gsm-voice-routing.c
+++ b/gsm-voice-routing.c
@@ -347,7 +347,7 @@ static void vol_up(char *buf, snd_pcm_uframes_t period_size)
     int i;
     s16 *val = (s16 *) (buf);
     for(i = 0; i < period_size; i++) {
-        *val = *val * 4;
+        *val = *val * 2;
         val++;
     }
 }