Arcam DV137 Audio set-up, Digital audio output, DVD sample rate, Audio compression, VCD mode

Audio set-up

This section allows you to configure the analogue, digital and HDMI audio outputs. In particular, the digital output type needs to be set correctly if you are using an external audio decoder, receiver or D-A converter.

Digital audio output

This setting configures the digital audio output – coaxial, optical and HDMI.

S/PDIF	When the ‘Stereo PCM’ digital output is selected, all audio material played is
stereo PCM	down-mixed to stereo and output as stereo PCM. Use this setting if you have an
	external D-A converter that supports only 2-channel PCM.
S/PDIF	The Bitstream setting supports the following audio standards:
bitstream	< 2 channel PCM (on CDs or DVDs)
	< Dolby Digital
	< MPEG multi channel
	< DTS multi channel
	Use this setting if you have a receiver/decoder that supports Dolby Digital.
HDMI	The primary audio connection is the HDMI link.
	Select this item if you are using an HDMI connection between your DV137 and
	your receiver or display device. The audio type will be changed automatically to
	work with the device attached to your player.
	Do not select this item if your HDMI display device cannot decode audio
	or if you are connecting to a DVI device (since a DVI link cannot carry
	audio) – choose one of the other settings instead.

DVD sample rate

This needs to be set correctly if you are using an external audio decoder, receiver or D-A converter connected to the S/PDIF digital audio output.

Max 96K	Choose this option if your external audio decoder is able to process digital audio
	with a sample rate of up to 96kHz, or if you are not using the digital audio
	outputs. This is the maximum sample rate present on DVD-video discs.
Max 48K	Choose this option if your external audio decoder is unable to process digital
	audio with a sample rate of up to 96kHz. This is the normal setting for this
	menu item.

Note that this setting is relevant only to the output from DVD-video discs.

Audio compression

Allows compression of the audio stream to be turned on or off, where ‘On’ is intended for ‘late night’ listening when large volume changes are not desirable.

Turning compression on decreases the volume of the louder passages, i.e., the total dynamic range of the audio is reduced. Normally, however, this item is set to ‘Off’, to disable compression.

This menu option affects both the analogue and the HDMI outputs (although note that the HDMI output is affected only when multi-channel uncompressed audio is requested by the receiver, not otherwise). The co-axial and optical digital audio outputs are never affected by this menu setting.

Compression is available only on Dolby Digital recordings.

VCD mode

Some VCD discs are produced with a dual-mono soundtrack. This means that the left audio channel carries one language, the right another. In this case it can be useful to listen to just one of the channels.

Stereo	Choose this option to play the VCD with both channels audible.
Left	Choose this option to play the VCD with only the left channel audible. The audio
channel only	from the left channel will be routed to both the left and right speakers.
Right	Choose this option to play the VCD with only the right channel audible. The audio
channel only	from the right channel will be routed to both the left and right speakers.

This setting applies only to VCD discs.

DV137

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