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Author Topic: Sound technology pioneer Ray Dolby dies  (Read 1217 times)

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snadge

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Sound technology pioneer Ray Dolby dies
« on: 13 September 2013, 13:27:31 »
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Ray Dolby, an American inventor known for leading work in the area of noise reduction and surround sound, died Thursday at the age of 80 at his home in San Francisco.

Dolby, who had been living with Alzheimer's disease in recent years, was diagnosed in July with acute leukemia, according to Dolby Laboratories, the company he founded 48 years ago.

Holding over 50 U.S. patents, Dolby transformed the company in line with market changes, and its technology has made its way into cinema, homes, PCs and mobile entertainment.

Chinese vendor ZTE, for example, acquired in June a worldwide patent license for Dolby's portfolio covering High-Efficiency Advanced Audio Coding (HE AAC), an international standard used and licensed from Dolby by a number of mobile vendors. SingTel said in January it will use Dolby Digital Plus technology to deliver cinema-quality surround sound on Mio TV, its IPTV platform.

Dolby was born in Portland, Oregon in 1933, and his family eventually moved to the San Francisco Peninsula. From 1949 to 1957 he worked at Ampex, including on the electronics of videotape recording systems. In 1957, he graduated with a bachelor's degree in electrical engineering from Stanford University and in 1961, he was awarded a doctorate in physics from Cambridge in 1961.

The audio pioneer won medals from the Audio Engineering Society and the Institute of Electrical and Electronics Engineers among other honors.

Offline CappySpectrum

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Re: Sound technology pioneer Ray Dolby dies
« Reply #1 on: 13 September 2013, 15:48:15 »
I always assumed Dolby Digital (sound) was just a brand name and not related to a person.
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Offline CurlyWhirly

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Re: Sound technology pioneer Ray Dolby dies
« Reply #2 on: 13 September 2013, 20:33:03 »
I always assumed Dolby Digital (sound) was just a brand name and not related to a person.
Same here.

Offline Den1

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Re: Sound technology pioneer Ray Dolby dies
« Reply #3 on: 13 September 2013, 21:43:26 »
I remember when it was called plain old Dolby NR (analog)   :o
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snadge

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Re: Sound technology pioneer Ray Dolby dies
« Reply #4 on: 13 September 2013, 22:49:14 »
without using internet to find out....does anyone know how Dolby Noise Reduction actually works?   :D

Offline CurlyWhirly

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Re: Sound technology pioneer Ray Dolby dies
« Reply #5 on: 13 September 2013, 23:32:25 »
without using internet to find out....does anyone know how Dolby Noise Reduction actually works?   :D
No  :D

snadge

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Re: Sound technology pioneer Ray Dolby dies
« Reply #6 on: 13 September 2013, 23:49:21 »
without using internet to find out....does anyone know how Dolby Noise Reduction actually works?   :D
No  :D

I cant remember exactly lol.... it was something to do with turning volume up on quiet parts of tracks (during recording) which increase the SNR and turning it back down during playback (which reduces the hiss because the SNR was greater) ...something like that anyway

can anyone remember a Tape brand called That's  ...??

Offline Inactive

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Re: Sound technology pioneer Ray Dolby dies
« Reply #7 on: 14 September 2013, 00:22:05 »
I remember when it was called plain old Dolby NR (analog)   :o

So do I Den.. :-[ It was the bees knees on audio cassettes.

Offline CappySpectrum

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Re: Sound technology pioneer Ray Dolby dies
« Reply #8 on: 14 September 2013, 05:16:48 »
I remember when it was called plain old Dolby NR (analog)   :o

Never really paid attention to that until now, until looking at my old JVC unit from 1991. Dolby NR on the tape deck. But seeing Dolby Stereo on the old films just before all the credits are finished.
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Offline Den1

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Re: Sound technology pioneer Ray Dolby dies
« Reply #9 on: 14 September 2013, 10:09:10 »
without using internet to find out....does anyone know how Dolby Noise Reduction actually works?   :D
Dolby noise reduction works by compressing the sound during recording and expanding it during playback, apart from Dolby HX which works differently  ;)
Its a complicated technology which does require some understanding  ::) 
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