That a resonating cup will make a sound like a wine glass or a bowl there is no doubt.
Why you want more ringing I am not too sure. I spend much time trying to get rid of spurious resonant sounds that are not related to the music.
The large fins on the heat sinks on my amps also make a sound when there is music playing - which is why they are best kept in a cabinet reducing the ringing by a further 30 db and making the ringing all but inaudible. Doors, windows and wall hangings can still rattle but you can only go so far...
Why you want more ringing I am not too sure. I spend much time trying to get rid of spurious resonant sounds that are not related to the music.
The large fins on the heat sinks on my amps also make a sound when there is music playing - which is why they are best kept in a cabinet reducing the ringing by a further 30 db and making the ringing all but inaudible. Doors, windows and wall hangings can still rattle but you can only go so far...