METHOD AND DEVICE FOR INCREASING SPEECH INTELLIGIBILITY USING SEVERAL SENSORS Russian patent published in 2009 - IPC G10L21/02 

FIELD: physics; acoustics.

SUBSTANCE: invention relates to suppressing noise in speech signals. The method and system are used for evaluating authentic speech values, signal of an alternative sensor, received from a sensor, which is distinct from a microphone with air conduction. During evaluation, the signal of the alternative sensor is used exclusively, or together with the signal of the microphone with air conduction. Authentic speech value is evaluated without using a model, trained on training data with noise, collected from the microphone with air conduction. In one version of implementation, correction vectors are added to the vector formed from the signal of the alternative sensor to form a filter, which is used on the signal of the microphone with air conduction for authentic evaluation of speech. In other versions the fundamental pitch of the speech signal, which is used for decomposing the signal of the microphone with air conduction, is determined from the signal of the alternative sensor. The decomposed signal is then used to determine authentic evaluation of the signal.

EFFECT: provision for optimum evaluation of speech values in conditions when the signal of the alternative sensor differs from the signal of the microphone with air conduction.

15 cl, 11 dwg