Ray Dolby passes away - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
Thread Tools
post #1 of 5 Old 09-13-2013, 01:08 AM - Thread Starter
lovinthehd's Avatar
Join Date: Dec 2007
Location: OROR
Posts: 16,325
Mentioned: 50 Post(s)
Tagged: 0 Thread(s)
Quoted: 4588 Post(s)
Liked: 4775
Just saw this about Ray Dolby passing away and suppose this is the most appropriate space http://www.sfgate.com/bayarea/article/Ray-Dolby-pioneering-sound-engineer-dies-at-80-4810882.php

lovinthehd is offline  
Sponsored Links
post #2 of 5 Old 09-13-2013, 09:50 AM
shadyJ's Avatar
Join Date: May 2009
Posts: 8,786
Mentioned: 28 Post(s)
Tagged: 0 Thread(s)
Quoted: 1330 Post(s)
Liked: 1350
At least he got to see Atmos as a company achievement before he passed away. I mean, how are you going to top an Atmos sound system?
shadyJ is offline  
post #3 of 5 Old 09-13-2013, 10:06 AM
AVS Forum Special Member
FOH's Avatar
Join Date: Apr 2010
Location: Midwest
Posts: 4,791
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Liked: 234
Sorry to learn of this, he'd been ill for some time.

What a true giant in the industry. I remember looking at the double D, Dolby B noise reduction symbol on my Alpine AM/FM cassette deck in the late 70s, thinking damn, ... that dude must be loaded. Then, over time I eventually learned more about his engineering chops and all he supplied to the audio industry.

Flat, Deep, Clean, Linear, and Loud
Active 16.8kw, 7.3 system
(3)Seaton Cat12C up front, (4)QSC K8 sides/rears
(2)Seaton SubM-HP, (4)18" IB
FOH is offline  
post #4 of 5 Old 09-13-2013, 10:56 AM
AVS Forum Special Member
William's Avatar
Join Date: Apr 2000
Location: Atlanta
Posts: 8,679
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Liked: 50
Originally Posted by shadyJ View Post

At least he got to see Atmos as a company achievement before he passed away. I mean, how are you going to top an Atmos sound system?

Actually probably not (at least comprehend). I believe he had beed suffering from Alzheimer's.
William is offline  
post #5 of 5 Old 09-13-2013, 12:30 PM
AVS Forum Special Member
Glimmie's Avatar
Join Date: Sep 2000
Location: Los Angeles, CA
Posts: 9,078
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 729 Post(s)
Liked: 592
Ray Dolby, while a college student working part time at Ampex, also made significant contributions to the FM recording method for the first VTR in 1956. The idea of using FM to compress very wide bandwidth signals like video and radar is still used extensively today in data recording. Your disk drives all use this technology.

Specifically he did not come up with the FM recording idea but did introduce the multivibrator type modulator which could produce the FM carrier directly from the video signal thus greatly simplifying the video signal system. Current technology at the time required deviating a 50mhz+ crystal oscillator (needed high frequencies because crystal oscillators have a very narrow deviation range) then hetrodyning it down to the 5-10mhz range to record on tape - all with vacuum tubes! Ray's multivibrator circuit could do it with one dual triode tube (or two transistors in later years).

Note: The LA Times today credited Ray Dolby as the chief design engineer for the VTR at Ampex. That is incorrect. The head of the team was Charles Ginsburg. Nonetheless, Ray played a very significant part in the team.

And you thought he was an audio guy! smile.gif

Ray is fourth from the left. Note that's just the tape transport. The all vacuum tube VTR electronics took up two full racks. When color was added that took two more racks!

MarkHotchkiss likes this.
Glimmie is online now  
Sponsored Links
Reply Audio Theory, Setup, and Chat

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off