audio_channel_init( ch, clip, AUDIO_FLAG_SPACIAL_3D );
audio_channel_set_spacial( ch, position, range );
audio_channel_edit_volume( ch, volume, 1 );
audio_channel_init( ch, clip, AUDIO_FLAG_SPACIAL_3D );
audio_channel_set_spacial( ch, position, range );
audio_channel_edit_volume( ch, volume, 1 );