The audio button, Dolby digital, Additional features – HHB comm UDP-89 User Manual
Page 34
Additional Features
33
UDP-89 User Manual Version 2.1
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.