Meridian Digital Surround Controller 561, Руководство пользователя

Страница: 15 / 131

8
Introduction
The digital surround controller provides an extremely
comprehensive range of digital signal processing options for
decoding both analogue and digital audio signals and
processing them for multi-channel reproduction. These are
referred to as DSP presets, and are designed to provide the best
results with a range of different types of music and film material.
In addition to selecting built-in DSP presets, the digital surround
controller allows you to create your own presets based on the
standard ones. For example, you may want to add more delay to
the rear speakers to create a more spacious sound. You can
store your modified preset with a name of your choice, and
recall it for use at a later date.
This section gives information about each of the built-in DSP
presets, and gives recommendations for the best preset to
choose for different types of material.
Multi-channel digital sources
The 561 Digital Surround Controller supports the three
alternative multi-channel digital formats currently available,
which encode up to 8 different channels onto a digital signal:
Dolby Digital (AC-3), DTS, and MPEG Audio. It also supports
Meridian’s own MLP format.
Dolby Digital
Dolby Digital, previously called AC-3, is the preferred sound
format for DVD video, and is widely used on LaserDisc
soundtracks. It is also the audio standard for US digital
television.
DTS
DTS uses a carefully designed audio compression technique to
encode five channels of audio onto a digital signal. The DTS
format is used to encode multi-channel film soundtracks on
LaserDiscs and DVD video discs.
DSP presets