組立手順/Assembly

n低音部のレギュレーターを調整します。

共鳴パイプは、温度23℃のときに最も良く共鳴するよう 調整してあります。

使用時の温度が上記温度と異なる場合は、レゾナンス・レ ギュレーターによって、最良の共鳴を得るように調整する ことが必要です。

q気温が上昇した場合

気温が上昇すると、音板ピッチは下がりますが、共 鳴パイプのピッチは逆に急激に上がりますので、そ の分だけパイプのピッチを下げる必要があります。 そのためには、パイプの共鳴部を長く、つまりレ ギュレーターを開口部に近くセットしなければなり ません。

通常、レギュレーターは下図Aの向きでパイプに セットしますが、最大限パイプを長く活用したい場 合は、Bの向きでセットしてください。

w気温が下がった場合

パイプピッチを上げることが必要です。qとは逆 に、パイプの共鳴部を短く、つまりレギュレーター を奥にセットしてください。

注意事項

演奏会などの広い会場で共鳴音の調整をする場合 は、3人で行なうのが理想的です。ひとりが音板を 叩き、もうひとりがレギュレーターをセットし、 他のひとりが会場で最も共鳴音がよく聞こえると ころで聞きながら合図します。

B/C音、E/F音の共鳴箇所は必ず2回ずつ調整して ください。先に合わせた音が後に合わせた音に吸 音されて共鳴効果が低下する場合があります。

音板と音板綴りひもの間にノイズが発生して気に なるようでしたら、ひもの張り方をゆるめてくだ さい。

nTuning the Resonators.

The resonators are factory adjusted so that the optimum resonance level is obtained at 23°C.

If the temperature differs due to playing conditions, the resonators will require adjustment in order to obtain opti- mum resonance.

qWhen the temperature is higher

As the temperature rises, tone bar pitch lowers and resonator pitch sharply increases making it neces- sary to lower the pitch on the resonator to compen- sate. In this case the resonating section of the tube should be lengthened, or in other words, the regulator should be set closer to the open end of the tube.

Ordinarily, the regulator would be fitted into the pipe as shown by “A” in the photo on the right, but it can be reversed as illustrated by “B” in order to obtain maxi- mum length.

wWhen the temperature is lower

In this case the tube’s pitch must be raised. Contrary to step q above, the resonating section of the tube should be shortened, or in other words, the regulator should be set further into the tube.

Special Considerations

For performances in large halls, etc., three people are ideal for carrying out resonator adjustments; one person to strike the tone bars, a second to adjust the regulators, and a third to signal the sound quality while listening from the audience area.

The resonance of B/C and E/F notes should be double-checked. Sound absorption by the neighboring note can deteriorate resonance.

Excessive noise between the cord and tone bars can be eliminated by slightly loosening cord tension.

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Yamaha YM6100 低音部のレギュレーターを調整します。, Tuning the Resonators, When the temperature is higher, When the temperature is lower

YM6100, Concert Marimba specifications

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