Cambridge Audio one plus User Manual download pdf (Page 28)

Setup menu continued

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 specication, the bandwidth available for audio is proportional to

the total bandwidth used by video. At 480p/576p resolution, the HDMI

specication 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. Coaxial/Optical Output

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 options are:

Note: When using the Stereo or 7.1 Analog Audio outputs the LPCM

rate limit should always be set to 192kHz to allow the internal playback

engine to feed the up-sampler with the maximum sample-rate the

content supports.

48kHz LPCM– Supported by most equipment. Higher sample rate

material will be downsampled to 48kHz.

96kHz LPCM– Allows a higher sampling rate and frequency response. If

using an externally connected AV receiver or DAC via coaxial or optical,

ensure that the receiver/amplier can support it. Higher sample rate

material will be downsampled to 96kHz.

192kHz LPCM – Allows the highest sampling rate and frequency

response. If using an externally connected AV receiver or DAC via coaxial

or optical, ensure that the receiver/amplier can support it.

Bitstream – Passes audio as compressed bitstream format to the

receiver/amplier. Choose this setting if your receiver/amplier is

capable of decoding Dolby Digital and/or DTS etc.

4. 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 752BD’s own

audio outputs are also active and playback of SACD material is possible

by the 752BD 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).

5. HDCD Decoding

To set the audio decoding option for HDCD (High Denition Compatible

Digital) discs. The options are:

On – HDCD is decoded by the 752BD. For HDCD discs, this gives

expanded dynamic range and improved audio resolution.

Off – HDCD is treated as regular CD and output as a native bitstream

preserving the hidden encoding. This is useful when the 752BD is

connected to an HDCD-capable A/V receiver via a digital audio output

link (Coaxial, Optical, or HDMI) the output is unprocessed so the A/V

receiver can perform HDCD decoding instead.

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Cambridge Audio one plus User Manual Page 28

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