Yamaha HTR-4063 Manual download pdf (Page 76)

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APPENDIX

Audio information

Audio and video synchronization (lip sync)

Lip sync, an abbreviation for lip synchronization, is a technical term that

involves both a problem, and the capability of maintaining audio and video

signals synchronized during post-production and transmission.

Whereas the audio and video latency requires complex end-user

adjustment, HDMI version 1.3 incorporates an automatic audio and video

syncing capability that allows devices to perform this synchronization

automatically and accurately without user interaction.

Bi-amplification connection

A bi-amplification connection uses two amplifiers for a speaker. One

amplifier is connected to the woofer section of a loudspeaker while the

other is connected to the combined mid and tweeter section. With this

arrangement each amplifier operates over a restricted frequency range. This

restricted range presents each amplifier with a much simpler job and each

amplifier is less likely to influence the sound in some way.

Dolby Digital

Dolby Digital is a digital surround sound system that gives you completely

independent multi-channel audio. With 3 front channels (front L/R and

center), and 2 surround stereo channels, Dolby Digital provides 5 full-range

audio channels. With an additional channel especially for bass effects,

referred to as LFE (Low-Frequency Effect), the system has a total of 5.1-

channels (LFE is counted as 0.1 channel). By using 2-channel stereo for the

surround speakers, more accurate moving sound effects and surround sound

environments are possible than with Dolby Surround. The wide dynamic

range from maximum to minimum volumes that are reproduced by the 5

full-range channels, and the precise sound orientation generated using

digital sound processing provides listeners with unprecedented excitement

and realism. With this unit, any sound environment from monaural up to a

5.1-channel configuration can be freely selected for your enjoyment.

Dolby Pro Logic II

Dolby Pro Logic II is an improved technique used to decode vast numbers

of existing Dolby Surround sources. This new technology enables a discrete

5-channel playback with 2 front left and right channels, 1 center channel,

and 2 surround left and right channels, instead of only 1 surround channel

for conventional Pro Logic technology. There are three modes available:

“Music mode” for music sources, “Movie mode” for movie sources, and

“Game mode” for game sources.

Dolby Pro Logic IIx

Dolby Pro Logic IIx is a new technology enabling discrete multichannel

playback from 2-channel or multi-channel sources. There are three modes

available: “Music mode” for music sources, “Movie mode” for movie

sources (for 2-channel sources only) and “Game mode” for game sources.

Dolby Surround

Dolby Surround uses a 4-channel analog recording system to reproduce

realistic and dynamic sound effects: 2 front left and right channels (stereo),

a center channel for dialog (monaural), and a surround channel for special

sound effects (monaural). The surround channel reproduces sound within a

narrow frequency range. Dolby Surround is widely used with nearly all

video tapes and laser discs, as well as in many TV and cable broadcasts.

The Dolby Pro Logic decoder built into this unit employs a digital signal

processing system that automatically stabilizes the volume on each channel

to enhance moving sound effects and directionality.

Dolby TrueHD

Dolby TrueHD is an advanced lossless audio technology developed for

high-definition disc-based media including Blu-ray Disc. Selected as an

optional audio standard for Blu-ray Disc, this technology delivers sound

that is bit-for-bit identical to the studio master, offering a high-definition

home theater experience. Supporting bitrates up to 18.0 Mbps, Dolby

TrueHD can carry up to 8 discrete channels of 24-bit/96 kHz audio

simultaneously. Dolby TrueHD also remains fully compatible with the

existing multichannel audio systems and retains the metadata capability of

Dolby Digital, allowing dialog normalization and dynamic range control.

DTS 96/24

DTS 96/24 offers an unprecedented level of audio quality for multichannel

sound on DVD video, and is fully backward-compatible with all DTS

decoders. “96” refers to a 96 kHz sampling rate compared to the typical

48 kHz sampling rate. “24” refers to 24-bit word length. DTS 96/24 offers

sound quality transparent to the original 96/24 master, and 96/24 5.1-

channel sound with full-quality full-motion video for music programs and

motion picture soundtracks on DVD video.

DTS Digital Surround

DTS Digital Surround was developed to replace the analog soundtracks of

movies with a 5.1-channel digital sound track, and is now rapidly gaining

popularity in movie theaters around the world. DTS, Inc. has developed a

home theater system so that you can enjoy the depth of sound and natural

spatial representation of DTS Digital Surround in your home. This system

produces practically distortion-free 5.1-channel sound (technically, left,

right and center channels, 2 surround channels, plus an LFE 0.1 channel as

a subwoofer, for a total of 5.1-channels).

DTS Express

This is an audio format for next-generation optical discs such as Blu-ray

discs. It uses optimized low bit rate signals for network streaming. In the

case of a Blu-ray disc, this format is used with secondary audio, enabling

you to enjoy the commentary of the movie producer via the Internet while

playing the main program.

DTS-HD High Resolution Audio

DTS-HD High Resolution Audio is a high resolution audio technology

developed for high-definition disc-based media including Blu-ray Disc.

Selected as an optional audio standard for Blu-ray Disc, this technology

delivers sound that is virtually indistinguishable from the original, offering

a high-definition home theater experience.

Supporting bitrates up to 6.0 Mbps for Blu-ray Disc, DTS-HD High

Resolution Audio can carry up to 7.1 discrete channels of 24-bit/96 kHz

audio simultaneously.

DTS-HD High Resolution Audio also remains fully compatible with the

existing multichannel audio systems that incorporate DTS Digital

Surround.

DTS-HD Master Audio

DTS-HD Master Audio is an advanced lossless audio technology developed

for high-definition disc-based media including Blu-ray Disc. Selected as an

optional audio standard for Blu-ray Disc, this technology delivers sound

that is bit-for-bit identical to the studio master, offering a high-definition

home theater experience.

Supporting bitrates up to 24.5 Mbps for Blu-ray Disc, DTS-HD Master

Audio can carry up to 7.1 discrete channels of 24-bit/96 kHz audio

simultaneously. Supported by HDMI version 1.3 and designed for the

optical disc players and AV receivers/amplifiers of the future, DTS-HD

Master Audio also remains fully compatible with the existing multichannel

audio systems that incorporate DTS Digital Surround.

Glossary

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