MOTU 8pre Guide de l'utilisateur télécharger pdf (Page 26)

MOTU AUDIO SETUP

‘8PRE’ TAB SETTINGS

Sample Rate

Choose the desired Sample Rate for recording and

playback. The 8pre can operate at 44.1 (the

standard rate for compact disc audio), 48, 88.2 or

96 kHz. Make absolutely sure that all of the devices

connected digitally to the 8pre match the 8pre’s

sample rate. Also make sure that your Digital

Timepiece, MIDI Timepiece AV or other digital

audio synchronizer matches it as well.

☛ Mismatched sample rates cause distortion and

crackling. If you hear this sort of thing, check the

sample rate settings in your hardware and here in

MOTU Audio Setup.

Clock Source

The Clock Source determines the digital audio

clock that the 8pre will use as its time base. The

following sections brieﬂy discuss each clock source

setting.

Internal

Use the Internal setting when you want the 8pre to

operate under its own digital audio clock. For

example, you may be in a situation where all you

are doing is playing tracks off hard disk in your

digital audio software on the computer. In a

situation like this, you most often don’t need to

reference an external clock of any kind.

ADAT optical

The ADAT optical clock source setting refers to the

clock provided by the 8pre’s optical input, when it

is connected to an ADAT optical device. This

setting can be used to slave the 8pre directly to the

optical input connection. In this scenario, the

ADAT Optical clock source setting lets you slave the

8pre to the other device via its digital connection to

the 8pre.

☛ The 8pre has two banks of optical connectors:

a top row (for 8-channel operation at 44.1 or 48

kHz) and a bottom row (for channels 5-8 at 88.2 or

Figure 5-1: MOTU Audio Setup gives you access to all of the settings in the 8pre hardware.

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MOTU 8pre Guide de l'utilisateur Page 26