Cambridge Audio AZUR 650BD - Manual (Page 25)

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650BD azur
ENGLISH
1. Secondary Audio
To set the Secondary Audio Program mixing option. Some Blu-ray discs
contain a secondary audio and video program, such as a director’s
commentary. Some Blu-ray Discs have a sound effect when you make
menu choices. This Setup Menu item allows you to decide whether to mix
the Secondary Audio Program and menu clicking sound into the primary
audio. The options are:
On – The Secondary Audio Program and menu clicking sound are mixed
into the primary audio. Usually this will cause the primary audio volume
to be slightly reduced. High resolution primary audio will be converted to
a normal resolution in order to mix with the secondary audio.
Note: If Secondary Audio Program is set On and a SAP (or menu sound)
is present as well as mixing these into the main audio the 650BD will
output that audio over both HDMI and SPDIF/Toslink as DTS 5.1 ONLY.
No external decoding of DTS Master, Dolby Digital etc. soundtracks will
be possible in this mode. All soundtracks will always be internally
decoded, mixed and then re-encoded as DTS 5.1 before output.
Once you have finished listening to a program with secondary audio
always remember to turn this feature back off.
Off – The Secondary Audio Program and menu clicking sound are not
mixed into the primary audio and you cannot hear the secondary audio
or menu clicking sound. This setting preserves the highest possible audio
quality for the primary audio.
2. HDMI Audio
To select digital audio output format from the HDMI output. The options
are:
LPCM – Digital audio output via HDMI will be multi-channel Linear PCM
format. When this option is selected, compressed audio bit streams will
be decoded by the player and then sent as multi-channel PCM. This
setting is recommended when connecting the HDMI output directly to a
TV or to a receiver without advanced audio decoding capabilities.
Bitstream – Digital audio output via HDMI will be in bitstream format.
This option is recommended when connecting the HDMI output to an A/V
receiver or processor that supports advanced audio decoding of Dolby
TrueHD and DTS-HD Master Audio etc.
Off – No digital audio output via HDMI.
Note: If you use HDMI to connect audio to an HDMI A/V receiver or audio
processor, it is important that you choose 720p or higher HDMI output
resolution when playing high resolution audio content (DVD-Audio,
SACD, Dolby TrueHD and DTS-HD Master Audio). According to the HDMI
specification, the bandwidth available for audio is proportional to the
total bandwidth used by video. At 480p/576p resolution, the HDMI
specification can only support 2 channels of audio with high sample rate
(up to 192kHz), or 8 channels of audio with standard sample rate (up to
48kHz). If you play high resolution audio content at the 480p/576p
resolution, you may get reduced audio resolution, incomplete audio
channels, or even no audio/video output at all. Choosing a higher output
resolution such as 720p or above allows enough bandwidth for all high
sample rate audio channels.
3. SACD Output
To select audio output format for SACD. The options are:
PCM – SACD Direct Stream Digital (DSD) data is decoded by the player
and converted into multi-channel, high resolution PCM data. The HDMI
output can be sent to an external AV receiver capable of receiving multi
channel PCM (HDMI 1.1 or higher inputs are required). The 650BD’s own
audio outputs are also active and playback of SACD material is possible
by the 650BD itself.
DSD – SACD DSD data is output over HDMI without any conversion. For
decoding by an external AV receiver capable of receiving DSD (HDMI 1.2a
or higher inputs are required and the receiver must actually include
support for DSD as it is not a mandatory requirement of the HDMI spec).
4. Coaxial/Optical Output
To set the output format for the coaxial/optical digital audio outputs. The
options are:
LPCM – Forces down-mixed 2-channel digital audio output. Choose this
setting if your receiver/amplifier or DAC only supports stereo digital (PCM)
audio.
Bitstream – Passes audio as compressed bitstream format to the
receiver/amplifier. Choose this setting if your receiver/amplifier is capable
of decoding Dolby Digital and/or DTS etc.
5. LPCM Rate Limit
To set the maximum Linear PCM output frequency for the coaxial/optical
digital output. This menu item is intended to ensure that the audio output
is compatible with equipment that cannot support high sample rates. It
sets an upper limit to decide whether the player shall down-sample audio.
The player does not up-sample audio to higher sample rates. The options
are:
48kHz – Supported by most equipment. Higher sample rate material will
be downsampled to 48kHz.
96kHz – Allows a higher sampling rate and frequency response. It can
result in better audio quality. Ensure that the receiver/amplifier can
support it. Higher sample rate material will be downsampled to 96kHz.
192kHz – Allows the highest sampling rate and frequency response. It
can result in the best audio quality. Ensure that the receiver/amplifier
can support it.