Dynamic audio processing parameters with automatic speech recognition

摘要

A communication system includes a front-end audio gateway or bridge and a hands-free device. An automatic speech recognition platform accessible to the hands-free device provides or makes available one or more preprocessing schemes and/or acoustic models to the front-end audio gateway or bridge. The preprocessing schemes or acoustic models can be identified by or provided before a connection is established between the front-end audio gateway and the automatic speech recognition platform, when a connection occurs between the front-end audio gateway and the automatic speech recognition platform, and/or during a speech recognition session.

主权项

1. A communication system comprising:
an audio-gateway that converts input audio signals into a compatible form used by a receiving network; a noise reduction module resident to the audio gateway configured to reduce in-vehicle echo and noise; and a speech recognition engine remote from the audio gateway generates and transmits commands through a wireless network that cause the audio gateway to modify the audio gateway's noise reduction processing state in response to a recognized request at the audio gateway for an automated speech recognition;
where the noise reduction module applies knowledge of a reverberation time, knowledge of a plurality of microphone placement, and knowledge of driver's location stored in a data store to reduce the in-vehicle echo and noise.