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參數(shù)資料
| 型號(hào)： | STV8267 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
| 中文描述： | 數(shù)字音頻解碼器/處理器為A2和麗音電視/錄像機(jī) |
| 文件頁(yè)數(shù)： | 28/149頁(yè) |
| 文件大?。?/td> | 2775K |
| 代理商： | STV8267 |
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Dedicated Digital Signal Processor (DSP)
STV82x7
28/149
4.3
ST WideSurround
STV82x7 offers three preset ST WideSurround Sound effects on the Loudspeakers path:
●
Music, a concert hall effect
●
Movie, for films on TV
●
Simulated Stereo, which generates a pseudo-stereo effect from mono source
“ST WideSurround Sound” is an extension of the conventional stereo concept which improves the
spatial characteristics of the sound. This could be done simply by adding more speakers and coding
more channels into the source signal as is done in the cinema, but this approach is too costly for
normal home use. The ST WideSurround system exploits a method of phase shifting to achieve a
similar result using only two speakers. It restores spatiality by adding artificial phase differences.
The Surround/Pseudo-stereo mode is automatically selected by the Automatic Standard
Recognition System (Autostandard) depending on the detected stereo or mono source. By default,
“Movie” is selected for Surround mode. This value may be changed to “Music” by the
STSRND_MODE bit in the
STSRND_CONTROL
register.
Additional user controls are provided to better adapt the spatial effect to the source. The ST
WideSurround Gain (
STSRND_LEVEL
) and ST WideSurround Frequency (
STSRND_FREQ
)
registers can be used to enhance Music Predominancy in Music mode and Theater effect and Voice
Predominancy in Movie mode.
4.4
ST OmniSurround
STV82x7 offers a spatial virtualizer to output any multi-channel input in stereo on the Loudspeakers
path:
“ST OmniSurround” will recreate a multi-channel spatial sound environment using only the Left and
Right front speakers. It can be adapted to any input configuration (OMNISRND_INPUT_MODE).
ST Voice will allow you to enhance the voice content of your program to increase the intellegibility
and the presence of the sound.
4.5
Dolby Pro Logic II Decoder
Dolby
Pro Logic II
is a matrix decoder that decodes the five channels of surround sound that
have been encoded onto the stereo sound tracks of Dolby
Surround program material such as
DVD movies and TV shows.
It is even possible to decode standard stereo signals like music or non encoded movies.
Furthermore, it is an active process designed to enhance sound localization through the use of very
high-separation decoding techniques.
The Dolby
Pro Logic II
decoder is also able to emulate the former Dolby
Pro Logic
decoder
in a specific mode.
4.6
Bass Management
This processing will generate the subwoofer signal and adjust all loudspeakers channels gain and
bandwidth.
Speakers capable of reproducing the entire frequency range will be referred to as “full range
speakers”, then signals sent to full range speaker will be full bandwidth (no filtering).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STV8267D | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
| STV8267DSX | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
| STV8267DSXT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
| STV8267DT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
| STV8267T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
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