SDP-40

The SETUP Menu

The AUTO setting allows the unit to switch between the selected DIGITAL IN and ANALOG IN connectors. The DIGITAL IN connector is utilized when a valid digital audio input type is present. When invalid digital audio input types are received, the unit automatically switches to the ANALOG IN connector. INPUT SELECT will automatically be set to AUTO when a connect or selected for both the DIGITAL IN and ANALOG IN parameters. This setting is recommended for input sources that utilize both digital and analog audio input types, such as a laser disc player.

Note:

Some sources supply valid digital audio input types that remain active even when no audio is present in the signal. Because the unit recognizes these as valid digital audio input types, it will not switch to the ANALOG IN connector. For these sources, it is recommended to configure two different inputs - one for digital audio input types, and a second for analog audio input types.

ANLG IN LVL

(-18 to +12dB)

ANLG IN LVL allows manual adjustment of the analog input level of the RECORD AUDIO OUTPUT labelled S/PDIF. It is used to prevent the internal analog-to-digital converter from overloading. It can be adjusted while listening to an input source.

When ANLG IN LVL is selected, a white horizontal bar graph will appear on the screen below the ANLG IN LVL parameter. This graph illustrates the position at which the current setting falls within the -18 to +12dB parameter range. Press the up and down MENU arrows to increase and decrease the setting in 1dB increments. Press the left MENU arrow to close the graph and return to the RECORD ADV menu.

DIGITAL BYPASS

(ON, OFF)

DIGITAL BYPASS allows direct digital recording. When set to ON, the unit passes the digital input signal - unaltered - to the S/PDIF outputs. When set to OFF, the unit sends digital audio output through a sample rate converter before passing it to the S/PDIF outputs. This allows the digital output signal to match the input of a digital recording device.

Note:

Changing the setting of the DIG OUT RATE parameter will cause the RECORD AUDIO OUTPUT labelled S/PDIF to mute momentarily. Otherwise, DIG OUT RATE parameter settings will be ineffective when the DIGITAL BYPASS parameter is set to ON.

DIG OUT RATE

(44.1kHz, 48kHz, 88.2kHz, 96kHz, INPUT)

DIG OUT RATE sets the S/PDIF output sampling rate for analog or digital inputs. When set to INPUT, the unit varies the S/PDIF audio output rate to match the sampling rate of the input signal. When set to a numerical value, the output sampling rate remains at the selected value. This is useful for recording devices that operate on a single sampling rate, such as CD-R (44.1kHz).

RECORD

(ENABLED, BLOCKED)

RECORD prevents feedback loops with recording devices. When set to ENABLED, the unit allows record signals from the selected input to pass to the RECORD AUDIO and VIDEO OUTPUTS. When set to BLOCKED, the RECORD AUDIO OUTPUTS are blocked, preventing feedback loops. However, the unit will still pass video signals to the

RECORD VIDEO OUTPUTS.

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Lexicon SDP-40 manual Anlg in LVL, Digital Bypass ON, OFF, DIG OUT Rate, Record