Mobile to mobile digital wireless connection having enhanced...

Details Mobile to mobile digital wireless connection having enhanced... Mobile to mobile digital wireless connection having enhanced...

Category

H - Electricity

Subcategory

04

Subsubcategory

Q

IPC codes

H04Q 7/36 (2006.01) G10L 19/00 (2006.01) G10L 19/14 (2006.01) G10L 21/02 (2006.01)

Type

Patent

Patent number

CA 2330985

Description

This invention is directed toward improving the subjective voice quality of a mobile to mobile phone call having tandem vocoder processing by modifying the spectrum of the voice signal before it is processed by the second vocoder to compensate for digital distortion which is generated by the second vocoder. An adaptive filter can be used to modify the spectrum of the voice signal. With this invention, the voice quality of a call from a first mobile phone to a second mobile phone has a quality that is substantially similar to the voice quality of a call from a mobile phone to a desk phone.

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