Is FindFiles multiple wildcards possible?

[d.healey]

I want to find all of the audio files in a folder that have .wav, .flac or .aiff extensions. Is this possible?

I tried this local files = FileSystem.findFiles(dir, "*.wav|*.aiff|*.flac", true);

and this local files = FileSystem.findFiles(dir, "(*.wav)|(*.aiff)|(*.flac)", true);