Tinny, innit
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Tinny, innit
Any ideas what might be causing a tinny edge to the tone of the second E-natural above middle-C on an oldish Yamaha C2? It's not my piano so admittedly I don't know anything of its history, but the tuner's ruled out sympathetic vibrations in the instrument or the room, so what else could it be? Apart from that note it's an ok if not very inspiring instrument, but that note is eventually going to force me to take an axe to the piano and the owners might not see the funny side...
"Each day grow older, and learn something new."
Solon (c. 630 - c. 500 B.C.), Greek Statesman and Reformer
Solon (c. 630 - c. 500 B.C.), Greek Statesman and Reformer
Gulp - erm, I'll let you know after I've read the Larry Fine booka very obscure article I read somewhere on the Piano-World forums also talked about longitudinal pulses causing inharmonicity as a consequence of incorrectly aligned agraffes.
Dunno if that helps any?
"Each day grow older, and learn something new."
Solon (c. 630 - c. 500 B.C.), Greek Statesman and Reformer
Solon (c. 630 - c. 500 B.C.), Greek Statesman and Reformer
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Barrie Heaton
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Re: Tinny, innit
Did he try to voice it outOpenwood wrote:Any ideas what might be causing a tinny edge to the tone of the second E-natural above middle-C on an oldish Yamaha C2? It's not my piano so admittedly I don't know anything of its history, but the tuner's ruled out sympathetic vibrations in the instrument or the room, so what else could it be? Apart from that note it's an ok if not very inspiring instrument, but that note is eventually going to force me to take an axe to the piano and the owners might not see the funny side...
longitudinal pulses tend to be in the 6 th octave and more than often its the bridge pin not the Vbar or agraffes
Barrie,
Barrie Heaton
Web Master UK Piano Page
Web Master UK Piano Page
noises in pianos are the bane of a tech's life.
If you have time, try the following sequence;
Mute each string of the offending trichord in turn to ascertain if all three are causing the tinnyness or just one..
If only one, then it is probable that there is a loose bridge pin. or poor bearing.
If that fails,Play the note and press your finger firmly on the bridge across all 3 strings. If no improvement, press yr finger across all 3 above the top bearing.
Next, try the partials; play the note and press yr finger across the third, then the fourth then the fifth up to the seventh harmonic if you can hear it.
If that doesn't improve matters, the problem is elsewhere.
Next get an assistant to patrol the room while you play the note while they press every picture frame, electric fire suuround, door handle lampshade, window pane etc. Also, press the music desk, top door catches , bottom door catch and press EVERY screw in the hinges..
Ensure that there is not one castor not touching the floor and is vibrating.
If you have time, try the following sequence;
Mute each string of the offending trichord in turn to ascertain if all three are causing the tinnyness or just one..
If only one, then it is probable that there is a loose bridge pin. or poor bearing.
If that fails,Play the note and press your finger firmly on the bridge across all 3 strings. If no improvement, press yr finger across all 3 above the top bearing.
Next, try the partials; play the note and press yr finger across the third, then the fourth then the fifth up to the seventh harmonic if you can hear it.
If that doesn't improve matters, the problem is elsewhere.
Next get an assistant to patrol the room while you play the note while they press every picture frame, electric fire suuround, door handle lampshade, window pane etc. Also, press the music desk, top door catches , bottom door catch and press EVERY screw in the hinges..
Ensure that there is not one castor not touching the floor and is vibrating.