Speech Level Measures Dr. Herman J.M. Steeneken.

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Speech Level Measures Dr. Herman J.M. Steeneken

Speech level measurement Requirements: Male female comparable Wide band and telephone band comparable Insensitive for pauses and silent periods Fixed relation with STI test signal levels

Relevant level measures Peak levels (overload indicator) RMS level (root mean square, related to SNR) Indicator deflections (not reliable)

Mean speech spectra

Level measurement

Amplitude distribution direct sampling

Amplitude distribution envelope sampling

Relation between some speech levels Notice the level differences between speech utterances spoken with and without silent periods in between