add channels param the the silence generator function

src/mod/applications/mod_conference/mod_conference.c

@@ -4425,7 +4425,7 @@ static void conference_loop_output(conference_member_t *member)
 		} else {
 			
 			if (member->conference->comfort_noise_level) {
-				switch_generate_sln_silence(write_frame.data, samples, member->conference->comfort_noise_level);
+				switch_generate_sln_silence(write_frame.data, samples, member->conference->channels, member->conference->comfort_noise_level);
 			} else {
 				memset(write_frame.data, 255, bytes);
 			}

src/mod/applications/mod_random/mod_random.c

@@ -199,7 +199,7 @@ SWITCH_MODULE_RUNTIME_FUNCTION(mod_random_runtime)
 		int i = 0;
 		int len = sizeof(data) / 2;
 
-		switch_generate_sln_silence(data, len, 1);
+		switch_generate_sln_silence(data, len, 1, 1);
 		random_add_entropy(rfd, data, len);	
 
 		while(i < len && !data[i]) i++;

src/mod/formats/mod_tone_stream/mod_tone_stream.c

@@ -94,7 +94,7 @@ static switch_status_t silence_stream_file_read(switch_file_handle_t *handle, vo
 		sh->samples -= (int32_t)*len;
 	}
 
-	switch_generate_sln_silence((int16_t *) data, (uint32_t)*len,
+	switch_generate_sln_silence((int16_t *) data, (uint32_t)*len, handle->channels,
 								sh->silence ? sh->silence : (uint32_t)-1);
 
 	return SWITCH_STATUS_SUCCESS;