Speech enhancement using multiple microphones on multiple devices

摘要

Signal processing solutions take advantage of microphones located on different devices and improve the quality of transmitted voice signals in a communication system. With usage of various devices such as Bluetooth headsets, wired headsets and the like in conjunction with mobile handsets, multiple microphones located on different devices are exploited for improving performance and/or voice quality in a communication system. Audio signals are recorded by microphones on different devices and processed to produce various benefits, such as improved voice quality, background noise reduction, voice activity detection and the like.

主权项

1. A method of processing audio signals comprising:
capturing a first audio signal, representing sound from a plurality of sound sources, with a first microphone located on a first device that includes a first communication interface configured to exchange wireless signals with a second device over a communication link; receiving a second audio signal from a second microphone located on the second device selecting a source separating algorithm from a plurality of source separating algorithms, the selection being based on range information indicating a distance between the first microphone and the second microphone; and processing the first and second captured audio signals according to the selected source separating algorithm to produce a signal representing sound from one of the sound sources separated from sound from others of the sound sources.