Electro-acoustic control of radiation impedance for brass instrument timbre shaping: design of a vocalizing mute

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Figure 12.

Bode diagram (modulus and phase) of the vocal tract filter H_VT. The variation in the value of the a_i parameters is studied in order to observe the changes in the transfer function. The errors $E_{a_{i}}$ $E_{a_i}$ and sensitivities $S_{a_{i}}$ $S_{a_i}$ are presented for several variations of a_i.

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