Table of Contents
Advertisement
Digital Signal Processing
Upsampling
The G92 includes upsampling in stereo mode, which allows digital
filters to be placed far beyond the range of human hearing, as
well as offering other audible benefits right across the audio band,
including improved transient response. All processing is at 48-bit
precision. This results in a more open, transparent sound, tighter
bass, and a generally more 'musical' sound overall.
To drive the power amplifier modules and the six-channel
analogue line-level outputs, signals are upsampled to 24-bit,
176.4/192kHz for digital to analogue conversion – DACs can offer
better performance at higher sampling rates; up to 88.2/96kHz
multichannel or 192kHz in stereo is delivered as the digital audio
component of the HDMI output, at 24-bit word length.
Digital surround decoding
Advanced digital processing features are handled by a powerful
DSP engine delivering an impressive 150MIPS (million instructions
per second). In addition, the G92 incorporates digital surround
decoding to allow full 5.1 surround performance. The built-in
surround processing system decodes 5.1 Dolby Digital or DTS
soundtracks from DVD discs, and Dolby Digital or DTS data
streams fed into the external digital inputs. It will also synthesise
a full surround image from 2-channel soundtracks on audio CDs
or DVD-Vs, or from the external two-channel digital or analogue
inputs, by extracting latent surround information in the recording.
The acclaimed Trifield system – which decodes conventional
stereo to the 3-speaker front stage (LCR) of a surround layout
for impressive added soundstage stability and imaging – is also
included.
Several DSP presets are provided to allow you to choose the type
of surround processing used for different sources. For 5.1 audio
formats a Discrete or Cinema DSP preset is selected automatically,
depending on whether the source is music or a movie. For two-
channel audio formats the DSP preset can usually be switched
between Trifield (recommended for music), Stereo (uses just the
main left and right speakers and subwoofer), or PLII (recommended
for movies), using the DSP key on the front panel or the supplied
MSR+ infrared learning remote.
Video
On the video side, advanced video circuit designs, matched-phase
video filters, and a broadcast-quality video encoder are employed
to deliver low-noise images of outstanding colour depth up to full-
specification High Definition 1080p resolution. Separate ultra-low
jitter master video and audio oscillators allow picture and sound
to be independently optimised, ensuring that the G92 DVD Player
Controller Tuner delivers breathtakingly clear pictures.
Video processor/scaler
The G92 includes a unique broadcast-quality, high-resolution video
processor/scaler which combines both Meridian and Faroudja
DCDi® technology, delivering the most advanced, high-quality
video available today. The processor can simultaneously provide
I n t r o d u c t i o n
Advertisement
Table of Contents
