ForceToMono disabled

Hello, Community!

I’ve a strange thing during working with AudioClips.

If I’ve STEREO audio clip (source file) in WAV, it can be forced to mono - checkbox is enabled in inspector

If I’ve STEREO audio clip (source file) in MP3, it can’t be forced to mono - checkbox is disabled.

Unity 4.5.5f1

What is the reason of this, may be anybody knows?
Thank you in advance :slight_smile:

Argh, Unity 4.5 is pretty old :confused: I understand not everyone can update easily.

I am absolutely guessing it could be an interlaced problem? Maybe? Have you tried compressing in non-interlaced mp3? Maybe try CBR vs. VBR too, and finally another mp3 encoder.