auto asset = reel->main_sound()->asset();
if (!_audio_channels) {
- _audio_channels = asset->channels ();
- } else if (_audio_channels.get() != asset->channels ()) {
+ _audio_channels = asset->active_channels();
+ } else if (_audio_channels.get() != asset->active_channels()) {
throw DCPError (_("Mismatched audio channel counts in DCP"));
}