make gaussian noise less noisy FSCORE-340

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12720 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_ivr_originate.c

@@ -1871,7 +1871,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_originate(switch_core_session_t *sess
 							silence = ringback.silence;
 						}
 					} else {
-						silence = 400;
+						silence = 600;
 					}
 					
 					if ((ringback.fh || silence || ringback.audio_buffer) && write_frame.codec && write_frame.datalen) {

src/switch_resample.c

@@ -181,24 +181,22 @@ SWITCH_DECLARE(void) switch_swap_linear(int16_t *buf, int len)
 	}
 }
 
-#if SILENCE_METHOD_ONE
+#if 1
 SWITCH_DECLARE(void) switch_generate_sln_silence(int16_t *data, uint32_t samples, uint32_t divisor)
 {
 	int16_t x;
 	uint32_t i;
 	int sum_rnd = 0;
-	int16_t rnd2 = (int16_t) switch_micro_time_now();
+	int16_t rnd2 = (int16_t) switch_micro_time_now() + (int16_t) (intptr_t) data;
 
 	assert(divisor);
 
-
-
 	for (i = 0; i < samples; i++, sum_rnd = 0) {
 		for (x = 0; x < 6; x++) {
 			rnd2 = rnd2 * 31821U + 13849U;
-			sum_rnd += rnd2;
+			sum_rnd += rnd2 ;
 		}
-		switch_normalize_to_16bit(sum_rnd);
+		//switch_normalize_to_16bit(sum_rnd);
 		*data = (int16_t) ((int16_t) sum_rnd / (int) divisor);
 
 		data++;