M-Audio 37-Key Audio/MIDI Interface and Controller Ozonic Bedienungsanleitung PDF herunterladen (Seite 3)

Hardware options for Pro Tools LE and M-Powered systems

instead of microphones. The phantom power switches are labeled ‘48V’,

which is the voltage supplied to power the microphones. A pair of Input Gain

controls is also provided. Gain controls for the line inputs, 3–8 on the back

of the Digi 001 interface, are provided in software so you can use these with

mixers, preamps, keyboards, or other line-level sources.

Figure A4.3

Digi 001 rear panel.

A pair of Monitor Outputs is provided on the back panel. These carry the same

audio signals that are routed to analogue outputs 1 and 2. The di erence is that

they are intended to let you listen to your main mix by hooking up a pair of

powered speakers or a stereo power ampli er and speakers. A Monitor Volume

control is provided on the front panel of the Digi 001 interface to control the

listening level.

The Main Analogue outputs, 1 and 2, can be used to connect to a tape recorder

when you are mixing down, although they may be connected to an external

mixer. These outputs are balanced, +4 dBu line level. Analog Outputs 3–8 are

unbalanced, –10 dBu line level, and can be used as sends to outboard gear or

as outputs to an external mixer.

Another option for mixdown is to connect the S/PDIF outputs to a DAT or other

digital recorder. By default, whatever is routed to outputs 1 and 2 is also sent

to the S/PDIF outputs. You can disable this S/PDIF ‘mirroring’ (as it is referred

to in the manual) so that you can use the S/PDIF connections to hook up an

external digital e ects unit, for example.

Low Latency Monitoring on the Digi 001

The Digi 001 supports Pro Tools LE’s special Low Latency Monitoring feature.

This lets you record and monitor the eight analogue and eight ADAT digital

inputs directly via outputs 1 and 2 with very low latency. When you select Low

Latency Monitoring from Pro Tools LE’s Operations menu, the audio entering

the hardware interface is not passed through the host computer’s processor –

it is routed directly to the main outputs instead.

There is a slight amount of latency involved here due to the A/D and D/A

conversions and the internal routing within the hardware. From the information

I was able to gather, the total delay is roughly 164 samples. This may not sound

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M-Audio 37-Key Audio/MIDI Interface and Controller Ozonic Bedienungsanleitung Seite 3