Mean energy- spectrum of speech (for six languages), Das durchschnittlich Energie- Spektrum der Sprache (fuer sech Sprachen)

The mean energy spectrum of speech is studied by method of choral speaking. Examining the spectrum recordings of six European languages, one may establish that the variations between them are small, occurring predominantly in the range 800 Hz to 2500 Hz. This method is equally suitable for the determination of the spectrum of individual speech and the mean energy spectrum of music. The results can be applied to problems of sound recording and regulation of the dynamic range.