Rotel RDV-1040 owner manual Glossary, Audio

RDV-1040DVD Player

Audio

DVD VIDEO disc playback sound level is lower than TV broadcast sound level.

•Set the D.RANGE CONTROL preference to TV MODE (see the D. Range Control infor- mation in the Preferences Setting section).

Analog audio output is distorted.

•Set the OUTPUT LEVEL preference to LOW (see the Output Level information in the Pref- erences Setting section).

MP3/WMA

No sound comes out.

•MP3/WMA disc is recorded with the “packet writing (UDF format).” It cannot be played.

Files (tracks) are not played in the recorded order.

•The RDV-1040 plays the files in alphabetic order. So, the playback order can vary.

WMA files cannot be played back.

•The file is copy protected.

•The file is recorded with a bit rate under 48 kbps. The RDV-1040 does not support such WMA files.

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Glossary

Aspect ratio

A ratio which defines the shape of the rectan- gular picture in a TV. It is the width of the pic- ture relative to the height. A conventional TV picture has 4:3 in aspect ratio.

Bitstream

The digital form of multichannel audio data (e.g., 5.1-channel) before it is decoded into its various channels.

Chapter/title

Chapter is the smallest division and title is the largest division on DVD Video. A chapter is a division of a title and similar to a track for Video CD or Audio CD.

Component video

Video signals with three separate channels of information that make up the picture. There are several types of component video, such as R/G/B and Y/CB(PB)/CR(PR).

Composite video

A single video signal commonly used in most consumer video products that contains all lu- minance, color, and synchronization informa- tion.

Dolby Digital (AC3)

Asix-channel system consisting of left, center, right, left rear, right rear and LFE (Low-Fre- quency Effect channel for use with a sub-woofer) channels. All processing is done in the digital domain. Not all Dolby Digital discs contain six (5.1) channels of information.

Dolby Surround/Dolby Pro Logic

Dolby Surround records four channels of front and rear audio in two channels in a way that allows a decoder to recover the original four channels for playback. Because the audio is recorded in two channels, it can be played back by a two-channel stereo system.

Dolby Pro Logic introduces directional circuits in decoder-side processing (increasing the level of specific channels and lowering the level of silent channels) for greater spatial perspective, and adds a center speaker used primarily for dialog. The result is enhanced channel sepa- ration.

Down-mix

Internal stereo mix of multichannel surround audio by a DVD player. The down-mix signals are output from stereo output connectors.

DTS

DTS stands for Digital Theater Systems, a Digital Surround audio encoding format configured with six (5.1) channels, similar to Dolby Digi- tal. It requires a decoder, either in the player or in an external receiver. Not all DTS discs contain six (5.1) channels of information.

Dynamic range

The difference between the loudest and soft- est sounds.

JPEG

A popular file format for still image compres- sion and storage. JPEG stands for Joint Pho- tographic Experts Group.

There are three sub-types of the JPEG format as follows.

•baseline JPEG: used for digital cameras, the web, etc.

•progressive JPEG: used for the web

•lossless JPEG: an old type, rarely used now

Linear PCM audio

PCM stands for “pulse code modulation.” Linear PCM is the usual method for digitally encod- ing audio without compression, and is used for the audio tracks on DVD Video discs, Au- dio CDs, etc.

MP3

MP3 is an audio data compression format, which stands for MPEG-1 Audio Layer 3. Us- ing MP3, you can achieve a data reduction of about 1:10.

MPEG

MPEG stands for Moving Picture coding Ex- perts Group. MPEG is a family of standards for compressing audio-visual infromation. “MPEG” standards include MPEG-1, MPEG- 2 and MPEG-4. Video CD and MP3 are based on MPEG-1, while DVD is based on MPEG- 2.