First, it is possible that you mentioned sports instability. You can observe your movements, try to keep the bow even when pulling or pushing, keep the angle of contact and friction between the bow hair and the string, and the intensity of pressure.

Second, there may be something wrong with the quality of your jinghu. Of course, you can also check the quality of the electronic corrector.

Third, the pitch of Jinghu in my impression is not twelve-average, and the inner chord (bass chord) is lower.

The above is for your reference.

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