MOTU 896HD User's Guide download pdf (Page 64)

AUDIODESK

■ Zero or 8 channels for optical, depending on

whether you have optical turned off or set to ADAT

optical

For example, if you are using analog only, the

896HD requires a minimum of 12 voices (for 12

channels of output). If you are using analog and

AES/EBU, you need 14 voices.

As another example, if you are using analog,

AES/EBU and ADAT optical, you need 22 voices

(the maximum number of simultaneous output

channels provided by the 896HD).

TRIMMING THE ANALOG INPUTS

The 896HD analog inputs provide trim knobs on

the front panel. To calibrate an audio input:

1 Record-enable a track in AudioDesk.

2 Choose the desired 896HD input for the track.

3 Open the Audio Monitor window.

4 As you feed signal to the input, adjust the input’s

corresponding trim knob on the front panel of the

896HD until peaks in the level meter are as high as

possible without clipping (hitting zero dB).

WORKING WITH 896HD INPUTS AND

OUTPUTS

Once you’ve enabled the MOTU FireWire Audio

driver as explained earlier in “The 896HD settings”

on page 62, 896HD audio inputs and outputs will

appear in AudioDesk’s audio input and output

menus. If you don’t see the optical inputs and/or

outputs, check the MOTU FireWire Audio Console

to make sure they are turned on and set to the

format you require. If you don’t plan to use the

optical input or output, turn it off to conserve

computer bandwidth.

Phones 1-2

If you’ve chosen to treat the 896HD headphones as

an independent output, you’ll see Phones 1-2 in

AudioDesk’s output menus. Audio tracks assigned

to this output pair will be heard on the headphone

jack only. For further explanation, see “Phones” on

page 63.

Mix1 1-2

In AudioDesk’s audio input menus, you’ll see an

896HD input called Mix1 1-2. This input source

delivers the output of CueMix DSP “MIX1” (the

ﬁrst mix bus of the four on-board no-latency

monitor mixes in the 896HD) to your computer.

This input serves, for example, as a convenient way

for you to record the 896HD’s MIX1 monitor mix

into AudioDesk (for reference and archiving

purposes). Further, if you are sending audio from

AudioDesk to the same output pair as MIX1, you

can choose to either include or exclude the audio

from the computer in the MIX1 stream being sent

to AudioDesk. For details on how to do this, see

“Mix1 Return Includes Computer” on page 96.

The Mix1 1-2 input is not available at the 4x sample

rates (176.4 or 192kHz).

☛ War ni n g : t h e Mix1 1-2 input can cause

feedback loops! DO NOT assign this input to a

track that shares the same 896HD output pair as

MIX1.

24-BIT OPERATION

Yo u r 8 9 6HD hardware fully supports AudioDesk’s

24-bit recording capabilities, including both

analog and digital 24-bit recording. If you would

like to record and play back 24-bit audio ﬁles, go to

the Setup menu (Basics menu under OS 9), choose

MOTU Audio System options>Conﬁgure Sample

Format, and choose 24-bit recording as the sample

format. This setting is saved with the AudioDesk

project.

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MOTU 896HD User's Guide Page 64

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