Time-domain synthesis of conical bore instrument sounds

Properties of a Conic Frustum

The effects of truncation can be reduced by utilizing a reed/mouthpiece cavity with an equivalent volume equal to that of the missing conical section (Benade, 1976).

**Figure 6:** Modal frequencies for a closed-open, cylinder-cone compound horn in which the cylindrical section volume is equivalent to the missing conic section volume. The dotted curves indicate integer relationships to the first mode.
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