// Get the vorbis info
vorbis_info *vi = ov_info( ov, -1 );
- mlt_properties_set_int( properties, "frequency", (int) vi->rate );
- mlt_properties_set_int( properties, "channels", vi->channels );
+ mlt_properties_set_int( properties, "audio_frequency", (int) vi->rate );
+ mlt_properties_set_int( properties, "audio_channels", vi->channels );
// Set some media metadata
mlt_properties_set_int( properties, "meta.media.nb_streams", 1 );