Deutschetelekom Ag

France Telecom

Sebastian Moeller

Alexander Raake

Marie-Neige Garcia

Vincent Barriac

Kirstin Scholz

Valerie Gautier-Turbin

Nicolas Cote

Marcel Waeltermann

Ulrich Heute

A method for determining a speech quality measure of an output speech signal with respect to an input speech signal, wherein the input signal passes through a signal path of a data transmission system resulting in the output signal, includes the steps of pre-processing the output signal; determining at least one of an interruption rate of the pre-processed output signal and a measure for an intensity of musical tones present in the pre-processed output signal; and determining the speech quality measure from at least one of the interruption rate and the measure for the intensity of the musical tones.

Method and system for the integral and diagnostic assessment of listening speech quality

A method and an apparatus for estimating a quality of an audio-video signal includes calculating audio and video quality factors from audio and video technical characteristics. An audio-video quality factors interaction is computed from an interaction between the audio and video quality factors. At least one of an audio quality, a video quality and an audio-visual quality is computed using the audio and video quality factors and the audio-video quality factors interaction.

Audio-visual quality estimation

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Berlin, Germany

Sebastian Moeller