 |
Method
of Analysis
A frequency analysis of No.1-6 strings of a guitar using the conventional
type bridge (zinc die cast saddle) and a guitar using the new Ti bridge
was performed, and the results(sonagraph and long-time FFT spectrum) were
compared. *Extract from analysis (Ti=left side)
Frequency Analysis : Japan Acoustic Lab. |
|
 |
| Results
of high E string frequency analysis comparing titanium and steel saddles (sonagraph) |
| In
comparsion with the conventional type, the reverberation times of
the fundamental and the second higher harmonic are extended by approximately
20% with the Ti bridge. Moreover, with the conventional type, the
third higher harmonic shows an unstable vibration, in which the sound
is interrupted or amplified one time. However, with the Ti bridge,
vibration is substantially stable. |
|
|
|
 |
| Results
of D string frequency analysis comparing titanium and steel saddles (sonagraph) |
| In
comparison
with the conventional type, in particular, the reverberation time
of the second higher harmonic is extended by approximately 12%. With
the conventional type, in the fundamental, second, third, and fourth
higher harmonics show an unstable vibration, in which the sound is
interrupted or amplified one time, but with the Ti bridge, vibration
is substantially stable. |
|
|
|
|
|
 |
B string frequency analysis comparing titanium and steel saddles (long-time FFT spectrum) |
| With
the conventional type, the sound pressure level of the third higher
harmonic is approximately 8db larger than that of the second higher
harmonic, and shows unnatural irregularities in the envelope. In comparison,
with the newly developed type, the difference in the sound pressure
level of the third higher harmonic and second higher harmonic is approximately
1db, and virtually no unnaturalness can be seen in the envelope. |
|
|
|
 |
| G string frequency analysis comparing titanium and steel saddles (long-time FFT spectrum) |
| With
the conventional type, the difference in the sound pressure level
of the third higher harmonic and fourth higher harmonic changes gradually,
at approximately 13db, but the difference in the sound pressure level
of fourth higher harmonic and fifth higher harmonic changes suddenly,
at approximately 17db. In contrast, with the newly developed type,
the difference in the sound pressure level of the third higher harmonic
and fourth higher harmonic is approximately 15db, and that of the
fourth higher harmonic and fifth higher harmonic is approximately
10db. There is no unevenness in the envelopes, witch slope gently
downward to the right. |
|
|
| |
| From
the above results, in comparison with the conventional type, the sound pressure
level gradually becomes smaller as the frequency increases with the newly
development Ti bridge, and the envelopes of the frequencies show a gentle
downward slope to the right. These results show that, in comparison with
the conventional type, when the newly developed Ti bridge is used, the low
sound region of the generated sound becomes wider, and the feeling of "depth"
increases. From a comparison of audibility, in comparison with the ordinary
type bridge, when the newly developed Ti bridge is used, there is an overall
lengthening of sustain, and it is possible to obtain the effect of using
a guitar body with good resonance, even when using an ordinary resonance
body. |
| |
|
© KTS Musical Products Inc. All rights reserved.
|
|
