Dolby Laboratories 585 User Manual

Page 20

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Model 585 Time Scaling Processor

Getting Started

2-10

Note:

Sensitivity

should remain at

5–high

for most program material. If the

setting must be changed, the change should be limited to the length of the
specific passage that requires the change, and then returned to

5–high.

Setting changes activate in real time when changed using the front-panel
controls.

Pitch

You can use the

Pitch

menu to select a new scaling value by pressing the arrow

buttons or rotating the knob. You can also make this adjustment from the main status
menu by rotating the knob. If you do so, however, the adjustment is immediately
activated, and you cannot return to the previous value by pressing

Esc

.

Processing Delay

The

Processing Delay

menu defines the system latency in milliseconds, within

a range of 400–480 ms. The default is 440 ms.

Clock Source

In the

Clock Source

menu, you can choose the source for the digital audio output

clock. The default is

Digital Input,

which locks the output clock to the channel

1/2 input.

Internal 48 kHz

locks the output clock to an internal 48 kHz

oscillator.

External Ref-In

locks the output clock to the

AES Ref

input clock.

The status of the

AES Ref

input clock is displayed in the

Reference In

status

menu.

DC Filter

The

DC Filter

can be turned on to eliminate any inconsistency due to the

processing of very low frequency or subsonic sounds. The default is

Disabled.

LFE Channel

In the

LFE Channel

menu, you can adjust the assignment of the LFE channel to

match the input. The factory default is

Auto

, which assigns all channels according to

the standard channel mapping shown in Table 7-1. If the input to Model 585 includes
a program with an LFE channel assignment not in line with the assignments in Table
7-1, you need to assign the LFE channel manually using this menu. In multichannel
audio, the LFE channel is bandwidth-limited, so to process the complete program
audio properly, the LFE channel must be assigned correctly.

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