The audio button, Dolby digital, Additional features – HHB comm UDP-89 User Manual

Page 34

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Additional Features

33

UDP-89 User Manual Version 2.1

www.hhb.co.uk

If the Surround Speaker are set to None, then the main L

& R stereo outputs will be standard stereo. In this format,

the left rear channel is added to the main left channel, and

the right rear channel is added to the main right channel.

Left = L + (0.707 x C) + (0.707 x L

s

)

Right = R + (0.707 x C) + (0.707 x R

s

)

Digital audio data in various formats is available at the two

S/PDIF connectors (optical

and coaxial

), the AES/EBU

output

and also the dedicated HDMI connector

. (See rear

panel connections on page 10.) The data available will depend

on disc type and, in the case of the S/PDIF outputs, also on

the setting of the Digital Output parameter in the Audio tab of

the Setup Menu. The table below summarises the digital audio

outputs for various disc types:

DISC TYPE

AUDIO FORMAT

S/PDIF and HDMI

AES/EBU

Downmix

Bitstream

CD

44.1kHz PCM audio

PCM

PCM

PCM

DTS

MUSIC

DISC

DTS bitstream

PCM

DTS

PCM

SACD

DSD

No Output

No Output

No Output

+ Downsampling ON

1

PCM

44.1kHz

PCM

44.1kHz

No Output

DVD-Video

Dolby Digital

PCM

Dolby Digital

PCM

DTS

PCM

DTS

PCM

MPEG

PCM

PCM

PCM

PCM (48kHz)

PCM

PCM

PCM

PCM (96kHz)

PCM

96kHz

2

PCM

96kHz

2

PCM 96kHz

2

+ Downsampling ON

PCM 48kHz

PCM 48kHz

PCM 48kHz

DVD-Audio

3

PCM/MLP

PCM

44.1kHz –

96kHz

PCM

44.1kHz –

96kHz

PCM

44.1kHz –

192kHz

+ Downsampling ON

PCM

44.1kHz –

96kHz

PCM

44.1kHz –

96kHz

PCM

44.1kHz –

96kHz

Video CD

MPEG

PCM

PCM

PCM

1 The SACD format restricts the output quality of any downmixed output. Therefore, the Lt/Rt Stereo outputs are limited to 16-bit PCM resolution
when playing SACDs, including the SACD-stereo track. This applies to the S/PDIF and HDMI digital outputs and the stereo analogue outputs.

Therefore when working in stereo, improved analogue quality will be available from the front L/R outputs.

2 May be downsampled to 48kHz if 96kHz digital output is prohibited by the disc.

3 May be prohibited by the disc

It can be seen from the table that the S/PDIF outputs will

produce either a downmix of the multichannel audio, or a raw

bitstream for external decoding. This is determined by the

Digital Output setting in the audio submenu; setting this to PCM

will generate the downmix, setting it to Bitstream will generate

the raw encoded audio data alternative. (See page 40 for

further information.)

The AUDIO button

The RC-89’s AUDIO button may be used to select alternative

audio programmes on DVD-V and DVD-A discs that offer them.

Pressing AUDIO scrolls through the available programmes,

which may include different audio encoding systems such as

Dolby Digital® or DTS®, alternative languages or a “director’s

commentary”. The inclusion of any alternative audio programme

is determined at the disc authoring stage; many commercial

DVD-V discs do not offer it.

No visual confirmation of which audio programme is currently

selected is given, unless DISPLAY is enabled (see “Time & Other

Displays” on page 25). The data in the Audio field changes

as AUDIO is pressed, indicating the number of the audio

programme, and (typically) the encoding system employed,

number of audio channels available and language.

Dolby Digital

The UDP-89 is equipped to decode Dolby Digital® audio from

DVD-V and DVD-A discs containing programme material thus

encoded. When Dolby Digital programme is selected, up to 5.1

multichannel audio will be available at both sets of multichannel

analogue audio outputs, and a downmix of this at the main L/R

analogue outputs and the AES/EBU digital output. The output

at the S/PDIF and HDMI digital outputs can be either the same

downmix, or the raw Dolby Digital bitstream; this is determined

by the setting of Digital Output in the audio Setup menu. The

front panel display will show Dolby D when a Dolby audio track is

playing.

DTS

The UDP-89 can decode DTS®-encoded audio from DVD-V,

DVD-A and DTS Music Discs containing such programme

material. When a DTS audio track is selected, up to 5.1

multichannel audio will be available at both sets of multichannel

analogue audio outputs, and a downmix of this at both the main

L/R analogue outputs and the AES/EBU digital output. The

output at the S/PDIF and HDMI digital outputs can be either the

same downmix, or the raw DTS bitstream; this is determined

by the setting of Digital Output in the audio Setup menu. A DTS

flag will illuminate in the front panel display when a DTS audio

track is playing.

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