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![A dummy's head with headset in a lab in Sunnyvale, California, is used to test sound quality for the new Dolby Voice service, which introduces surround sound to conference calls. - 2013 A dummy's head with headset in a lab in Sunnyvale, California, is used to test sound quality for the new Dolby Voice service, which introduces surround sound to conference calls. - 2013](https://c8.alamy.com/comp/DRKF7W/a-dummys-head-with-headset-in-a-lab-in-sunnyvale-california-is-used-DRKF7W.jpg)
A dummy's head with headset in a lab in Sunnyvale, California, is used to test sound quality for the new Dolby Voice service, which introduces surround sound to conference calls. - 2013
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