Export to audio does not respect Synthesizer settings unless saved to score

• Jul 25, 2015 - 22:42
Reported version

Steps to reproduce; try to make the zita1 effect as dry as possible and then render.

1. View -> Synthesizer
2. Under Master effects you should see the default Zita1. Set Delay to 20 and Output to dry. You should now hear that there are little or no reverb when playing in Musescore.
3. Export to a sound format, I used wav. There shouldn't be any reverb?

Win8.1, 64bit. Musescore 2.0.2


Title Export to audio does not respect crucial effect settings Export to audio does not respect Synthesizer settings unless saved to score

Yes, it is. That's just the way it works for now, but I'm leaving this active as a reminder that it would be nice if that wasn't necessary.

I experienced this too with musescore 2.0.2, I loaded my song in mscz format, then exported to audio (wav or mp3). It didn't use my mixer settings, it only used (it seems) the first soundfont in the synth list. When playing in musescore, the mixing was correct. Then I clicked on "save to score" in the synthesizer, and after the audio export was correct this time.

@geetar, I was just about to complain about export audio not obeying the synthesizer's volume, however upon inspection of the MuseScore::saveAudio() code, I discovered that musescore is automatically normalizing the audio. It does two passes through the audio, and in the first pass it figures out what is the song's peak amplitude: https://github.com/musescore/MuseScore/blob/09df048818e934a82522374c1ad…

Then after the first pass completes, it calculates the gain to nomalize according to that peak amplitude: https://github.com/musescore/MuseScore/blob/09df048818e934a82522374c1ad…

And then in the second pass it normalizes the audio according to that calculated gain: https://github.com/musescore/MuseScore/blob/09df048818e934a82522374c1ad…

So I guess MuseScore doesn't obey the synthesizer volume "by design".