FS-3224 this is comfort noise. i guess its not comforting, i'll remove it.

src/mod/applications/mod_dptools/mod_dptools.c

@@ -3629,7 +3629,8 @@ static switch_status_t file_string_file_read(switch_file_handle_t *handle, void
 		}
 
 		context->samples -= *len;
-		switch_generate_sln_silence((int16_t *) data, *len, 400);
+		//switch_generate_sln_silence((int16_t *) data, *len, 400);
+		memset(data, 255, *len *2);
 		status = SWITCH_STATUS_SUCCESS;
 	} else {
 		status = switch_core_file_read(&context->fh, data, len);