| As you know the modern family of brass instruments were developed from the' natural trumpet' on the one hand, and what could be called the 'natural horn' on the other.
The natural trumpet gave the best results with a cup mpc as this gave the best brightness and good intonation, the sound wave being fed back to the lips by the closeness of the cup bottom. The horn required a long conical mpc with straight sides to get a mellow and soft tone, although high range and intonation were difficult since there was effectively no bottom to give feed back.
Modern brass instruments need qualities from both camps, to greater or lesser degree. Thus, modern mpc's usually combine features of both types with one or the other being predominant.
Most current 'V' mpcs have a 'recurved' profile more like a sine wave. The best place to see this is on the excellent 'GR Technologies' site where the effects of the sections of profile are disscussed. |