- audio_format->sample_rate / (myProfile->frame_rate_num / myProfile->frame_rate_den) * sample_size / 8
- * audio_format->channels);
+ (uint64_t) audio_format->sample_rate / ( (uint64_t) myProfile->frame_rate_num / (uint64_t) myProfile->frame_rate_den) * (uint64_t) sample_size / 8
+ * (uint64_t) audio_format->channels);