Karl-Heinz Pflaum

Apparatus and method for speech recognition

An apparatus and a method for speech recognition are provided, by which, whereby the speech is optionally input via a microphone (14) close to the speaker or a microphone (20) remote from the speaker. A correction unit (15) is connected into the transmission channel (12) with microphone (14) close to the speaker, the correction unit modifying the electrical speech signal in such a way that it contains room transmission characteristics.

Computer apparatus having a multiway acoustic output and input system

A computer apparatus is provided, which has a multipath acoustic output system and a multipath acoustic input system, which includes parts for enabling an adaptation of the filter of an acoustic echo canceller incorporated in the computer apparatus that is always precise regardless of the chronological delays of the components of the computer apparatus, wherein the chronological delays are variable for acoustic signals.