MOTU 8pre User's Guide download pdf (Page 32)

DIGITAL PERFORMER

rate. Imported audio or soundbites in existing ﬁles

that do not match this sample rate will be displayed

in the Soundbites window with a red ‘X’ on its

move handle to indicate that it cannot be played.

Clock Source

This setting is very important because it

determines which audio clock the 8pre will follow.

If you do not have any digital audio connections to

your 8pre (you are using the analog inputs and

outputs only), and you will not be slaving Digital

Performer to external SMPTE time code, choose

Internal.

If you have digital audio devices connected to the

8pre, or if you are not sure about the clock source of

your setup, be sure to read “Syncing optical

devices” on page 20 and “Clock Source” on

page 26.

If you are slaving the 8pre and Digital Performer to

SMPTE time code via the 8pre itself, choose

SMPTE and follow the directions in “Setting up for

SMPTE time code sync” on page 62.

Buffer Size

The Buffer Size setting can be used to reduce the

delay — or monitoring latency — that you hear

when live audio is patched through your 8pre

hardware and Digital Performer. For example, you

might have MIDI instruments, samplers,

microphones, and so on connected to the analog

inputs of the 8pre. If so, you will often be mixing

their live input with audio material recorded in

Digital Performer. See chapter 10, “Reducing

Monitoring Latency” (page 45) for complete

details.

Optical input and output

To make a 8pre optical input or output available in

Digital Performer, choose ADAT from the optical

input and/or output menu. If you won’t be using

the optical connectors, turn them off. Note: this

settings can only be accessed in the MOTU Audio

Setup application.

Phones

This 8pre setting lets you choose what you’ll hear

from the headphone jack. For example, if you

choose Main Outs 1-2, the headphones will

duplicate the main outs. Or you can choose any

other output pair. If you choose Phones, this setting

makes the headphone jack serve as its own

independent output pair. As a result, you’ll see

Phones 1-2 as an additional audio destination in

Digital Performer’s audio output menus. Note: this

settings can only be accessed in the MOTU Audio

Setup application.

BE SURE YOU HAVE ENOUGH VOICES

If you are using Digital Performer 5.0 or higher,

you can skip this section, as DP5 provides

automatic voice allocation.

If you are using Digital Performer 4.61 or earlier, go

to the Setup menu and choose Conﬁgure Audio

System >Conﬁgure Studio Settings. Then check to

make sure you have enough mono and stereo audio

voices to cover the 16 channels of input and 12

channels of output provided by your 8pre —

although the number of channels may depend on

how your 8pre is conﬁgured:

■ 8 channels for analog input and output

■ Zero or 8 channels for optical, depending on

whether you have optical turned on or off

For example, if you are using analog only, you only

need 8 voices. If you are using analog and optical,

you need 16 voices.

TRIMMING THE MIC/INSTRUMENT INPUTS

The 8pre mic/instrument inputs provide trim

knobs on the front panel. To calibrate an audio

input:

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MOTU 8pre User's Guide Page 32

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