MOTU 896HD User's Guide download pdf (Page 63)

AUDIODESK

For complete details about the 896HD settings, see

chapter 5, “MOTU FireWire Audio Console (Mac

OS X)” (page 37) or chapter 6, “MOTU FireWire

Control Panel (Mac OS 9)” (page 45). The

following sections provide a brief explanation of

each 896HD setting for use with AudioDesk.

Sample rate

Choose the desired overall sample rate for the

896HD system and AudioDesk. Newly recorded

audio in AudioDesk will have this sample 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. Use the

commands in the Soundbites window mini-menu

to sample rate convert the ﬁles, if desired.

Before running the 896HD at the 4x sample rates,

see “Operation at 4x sample rates (176.4 or

192kHz)” on page 38.

Clock Source

This setting is very important because it

determines which audio clock the 896HD will

follow.

If you do not have any digital audio connections to

your 896HD (you are using the analog inputs and

outputs only), and you will not be slaving

AudioDesk to an external clock source, choose

Internal.

If you are slaving the 896HD to the ADAT Sync or

Word C l o ck i nput connector, choose ADAT 9-pin

or Word Clock In, respectively.

For information about the other clock source

settings, see “Clock Source” on page 39.

If you have digital audio devices connected to the

896HD, see “Making sync connections” on

page 19.

Buffer Size (OS X) / Samples Per Buffer (OS 9)

The Buffer Size setting (Samples Per Buffer under

Mac OS 9) can be used to reduce the delay — or

monitoring latency — that you hear when live audio

is patched through your 896HD hardware and

AudioDesk. For example, you might have MIDI

instruments, samplers, microphones, and so on

connected to the analog inputs of the 896HD. If so,

you will often be mixing their live input with audio

material recorded in AudioDesk. See chapter 11,

“Reducing Monitoring Latency” (page 85) for

complete details.

Optical input and output

To m a ke t h e 8 9 6HD optical input or output

available in AudioDesk, turn them on in the optical

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

the optical connectors, turn them off.

Phones

This 896HD setting lets you choose what you’ll

hear from the headphone jack. For example, if you

choose Main Outs, 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 (except when running at 176.4 or

192kHz). As a result, you’ll see Phones 1-2 as an

additional audio destination in AudioDesk’s audio

output menus.

BE SURE YOU HAVE ENOUGH VOICES

Go to the Setup menu (Basics menu under Mac OS

9) and choose MOTU Audio System

Options>Conﬁgure Studio Size. Then check to

make sure you have enough mono and stereo audio

voices to cover the 18 channels of input and 22

channels of output provided by your 896HD —

although the number of channels may depend on

how your 896HD is conﬁgured:

■ 12 channels for analog I/O (including the

headphone out)

■ 2 channels for AES/EBU

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MOTU 896HD User's Guide Page 63

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