I bought cheap sound emitters along with an amplifier from aliexpress. It was extremely interesting to try to arrange them on the soundboard of the piano! On New Year's Eve, having visited my parents' house, I made this experiment in some haste. This is not meant to be any comparison of sound quality, instrument quality, or anything else. It's just how it is. Rather, it is some desire to awaken interest in this kind of experiment in other people. It's just fun. Well, something might come out of it. Because all the same, the sound obtained in this way is more interesting than the sound coming from traditional speakers.
I placed the emitters on the deck without attaching them in any way. They were crushed by their own weight. There was no equalization (although this may be necessary). I arranged two microphones as you can see in the photo. The microphones inside the Pianotheques were arranged in a similar way. The sound was broadcast from the Pianotheques. There were no particular preferences in the location of the emitters. Rather, the arrangement was due to the missing strings, which made it possible to push the radiators to the soundboard. It was impossible to broadcast too loud sound, because. the rattling started.
On the recording in these multiple pieces, first a live instrument sounds, then through the emitters and then directly from the Pianotheques.
Of course, the radiators should be properly fixed, carefully choosing a place for this on the de
ck. Apply equalization for each individually (for example, using the REW analyzer). Maybe an interesting effect can be obtained by placing the emitters simultaneously in the plane of the deck and perpendicular to it. (use more emitters for this.) By simulating dual polarization and adding wobble to the deck. Maybe it changed the spatiality of the sound.
At that time, I did not have any midi keyboard and I used ordinary computer wireless keys. Therefore, there is no talk of any dynamics. The keyboard also clicked a little.
Perhaps these experiments will continue in the summer, when I will again be at home at the piano.