Voice recognition unit for audience measurement system

Details Voice recognition unit for audience measurement system Voice recognition unit for audience measurement system

H - Electricity

04

H

H04H 9/00 (2006.01)

Patent

CA 2306095

A member of an audience of a program to which a receiver is tuned is identified by a system which includes first and second microphones, a noise cancellation unit, and a voice recognition unit. One of the first and second microphones picks up relatively more of a voice signal from the member of the audience, and the other of the first and second microphones picks up relatively more of a sound signal from the receiver. The noise cancellation unit substantially eliminates the sound signal from the voice signal. The voice recognition unit identifies the member from the member's voice signal. The first and second microphones, the noise cancellation unit, and the voice recognition unit may be housed in a hand held housing or in a table top housing. The system may also include a passive people meter to passively identify the member, and a program to identify the program or channel to which the receiver is tuned.

Selon l'invention, un membre du public recevant une émission sur laquelle un récepteur est réglé est identifié par un système qui comprend un premier et un second microphone, une unité de suppression de bruit et une unité de reconnaissance vocale. Le premier ou le second microphone capte relativement une plus grande partie de signal vocal émis par le membre du public, tandis que l'autre microphone capte relativement une plus grande quantité du signal sonore émis par le récepteur. L'unité de suppression de bruit élimine sensiblement du signal vocal le signal de bruit. L'unité de reconnaissance vocale identifie ledit membre à partir de son signal vocal. Le premier et le second microphone, l'unité de suppression de bruit et l'unité de reconnaissance vocale peuvent être logés dans un boîtier tenu à la main ou pouvant être posé sur une table. Le système présenté peut également comprendre un audimètre passif servant à l'identification passive du membre, ainsi qu'un programme servant à identifier l'émission ou la chaîne sur laquelle le récepteur est réglé.

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