It featured virtually the same type of 4 channel decoding as the Dolby Stereo theater processor with active steering logic and much better channel separation (up to 30dB) as well as including a dedicated center channel output for the first time. Later on in 1987, the Pro Logic decoding system was released to consumers. This differed from the Cinema Dolby Stereo system which used active steering and other processing to decode a center channel for dialog and center focused on screen action. The front center channel was equally split between the left and right channels for phantom center reproduction. It also had Dolby Noise Reduction and an adjustable delay for improved channel separation and to prevent dialog leaking and arriving to listeners' ears first. However, the original Dolby Surround decoders in 1982 were a simple passive matrix 3 channel decoder : L/R and Mono Surround. The same 4 channel encoded stereo track was largely left unchanged and made available to consumers as 'Dolby Surround' on Home Video. This track used by the Dolby Stereo theater system on a 35mm optical stereo print and decoded back to the original 4.0 Surround.

The Dolby MP Matrix was the professional system that encoded 4 channels of film sound into 2. It was further improved with the Dolby Pro Logic decoding system after 1987. The format was adapted for home use in 1982 as Dolby Surround when HiFi capable consumer VCRs were introduced.

It is not to be confused with Logic Pro.ĭolby Pro Logic is a surround sound processing technology developed by Dolby Laboratories, designed to decode soundtracks encoded with Dolby Surround.ĭolby Surround/Dolby Pro Logic/Dolby Pro Logic II Product typeĭolby Stereo (also known as Dolby MP or Dolby SVA) was developed by Dolby in 1976 for analog cinema sound systems.

Those include the ability to jump to a specific sport in a recording (e.g., a tennis women’s singles event), advanced search capabilities to add DVR recordings (including to ability to search by league, team or tournament), and - for the Tokyo Summer Olympic Games - a medal counter to see standings by country in real time.'Pro Logic' redirects here. In addition, YouTube TV is adding features designed to make it easier to watch live sports. The rep said a list of supported devices will be on YouTube TV’s help website as the rollout commences. On the sound front, YouTube TV will add 5.1 Dolby audio capabilities for “select devices,” available to all subscribers over the coming weeks, according to Mohan.Ī YouTube rep said 5.1 Dolby support will be coming first to smart TVs followed by other devices but didn’t have details on manufacturers or models. “With a compatible 4K-enabled TV and/or streaming device, you can enjoy watching content in one of the best, most crisp resolutions,” Neal Mohan, YouTube’s chief product officer, wrote in a blog post Monday announcing the launch.

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