Multichannel systems

Part 1

• Why are decoders and multiple amplifiers found in modern home entertainment systems?
• What caused buyer hesitation in purchasing a multichannel system?
• What are some of the multichannel audio formats?
• What effect did the arrival of stereo VCRs have on home entertainment?
• Which was the first home audio surround system?
• How was Dolby Pro Logic superior to Dolby Surround?
• How many channel of Audio are reproduced by Dolby Digital 5.1? What is their frequency range?
• What is DTS?
• How did the completion between Dolby Digital and DTS affect the market?
• What were the capabilities of Dolby Surround?
• What is the Matrix coding technique?
• What does the Matrix decoder do during the decoding of the Dolby Surround signal?
• How many speakers does the Dolby Surround System use? What frequencies must they reproduce?
• What is the main difference between Dolby Pro Logic and Dolby Surround? What decoding technique does Dolby Pro Logic use?
• How many and what type of audio channels are reproduced by Dolby Pro Logic?
• What are the usual program sources for Dolby Pro Logic?
• When was Dolby Digital 5.1 introduced? Why is it so important?
• Why is the sound quality of Dolby Digital 5.1 so high?
• Why is data compression necessary for digital multichannel audio formats?
• Which compression algorithm is used by Dolby Digital 5.1 and what are its specifications?
• What are the functional advantages of Dolby Digital 5.1?
• Who supported DTS and when was it introduced?
• What are the similarities of DTS and Dolby Digital 5.1?

Part 2

• Which compression algorithm is used by DTS and what is the average data reduction?
• What are the predetermined roles of the speakers used in a Dolby Digital 5.1 or DTS system?
• What is the role of the Subwoofer in a Dolby Digital 5.1 or DTS system?
• What is the role of the surround speakers?
• What is the solution to improving the perception of rear surround sound?
• How did DTS respond to the Dolby-EX introduction?
• "5.1" and "6.1" systems are compatible. How is this possible?
• How does DD Surround EX differ from DD 5.1?
• Is the backward compatibility of the system ensured?
• What advantages derive from the addition of the rear center surround channel?
• How do DTS-ES 6.1 Matrix and DTS- ES 6.1 Discrete systems differ?
• How is the backward compatibility of the system ensured?
• What led to the introduction of DPL 11 and DTS Neo 6 decoders?
• What is the difference between Dolby Pro Logic and Dolby ProLogic II?
• What are the two modes of operation of Dolby ProLogic II?
• Why is Dolby Pro Logic 11 superior to Dolby Pro Logic?
• Why should be Dolby Pro Logic 11 be part of every home entertainment system?
• What is DTS NEO:6?
• What is the difference of today's multichannel sound formats from the Quad system of the 70s?
• My A/V amplifier has a Dolby Digital decoder. Why do I need a Dolby Pro Logic II decoder?
• Can I use the "A" speaker outputs of my amplifier to drive surround speakers?
• What kind of speakers are suitable for surround use? Do I need special speakers?
• Can I use my TV's speakers instead of a center speaker?