How to Install an Erhu Bridge to Avoid Buzzing Sounds
1. Check the Strings First
Before placing the bridge, make sure your strings are properly installed and tuned to standard erhu pitch: D (inner string) and A (outer string). Loose or overly tight strings can affect bridge stability and sound.
2. Positioning the Bridge
The bridge should sit between the two strings, right above the center of the snakeskin face (resonator). It should be vertically aligned with the soundpost (inside the resonator) if visible, and centered left to right between the strings.
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Pro tip: Look from the side—your bridge should be perpendicular to the snakeskin.
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Avoid placing it too close to the edge or too far from the center, as that could cause uneven tension and buzzing.
3. Adjust the Bridge Feet
Make sure both feet of the bridge are flush and stable on the snakeskin. If the bridge rocks or doesn't sit flat, it could create buzzing or dead tones. You may need to lightly sand the feet to match the curvature of the snakeskin surface.
4. Check for Balance
After installing the bridge, gently pluck each string and listen for any strange resonance or buzzing. If you hear buzzing:
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Try slightly repositioning the bridge forward or backward (a millimeter at a time).
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Ensure the strings are evenly resting in the bridge grooves.
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Double-check that the bridge is not tilted.
5. Apply Rosin and Tune Up
After installation, apply rosin to your bow and play a few notes. Fine-tune your strings again. Sometimes buzzing is caused by bowing technique, string age, or lack of rosin, not just bridge placement.
Final Tips:
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Use a quality bridge made of hardwood—cheap or poorly carved bridges often cause sound issues.
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Change strings regularly—old strings may vibrate unevenly and cause noise.
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If buzzing persists, consult an experienced player or teacher.