Alesis 03D User Manual download pdf (Page 14)

Chapter 1—Welcome to the 03D

03D—Owner’s Manual

Key Feature Discussion

Conﬁguration

The 03D provides a total of 26 inputs (including 8 digital inputs), stereo output (analog

or digital), 4 bus outs, 4 aux sends, 2 internal effects sends, and 8 assignable digital out-

puts via a single YGDAI (Yamaha General Digital Audio Interface) slot. Each input

channel features four-band parametric EQ and a dynamics processor. Input channels 1

to 8 feature balanced XLR and phone jack connections, with individually switched

phantom power. Inputs 1 and 2 feature analog inserts. Input delays can be used for

microphone-placement compensation, while output delays can be used for delay-com-

pensation in multi-speaker systems. The number of inputs can be increased by digitally

cascading two 03Ds together, sharing Bus, Aux, Stereo, and Solo buses. YGDAI digital

inputs and outputs can be conﬁgured as bus outs, aux sends, input channel direct outs,

or stereo outs. So although the 03D is a four-bus mixer, assigning the four buses and

four aux sends, or the channel direct outs to the YGDAI slot’s eight outputs allows

eight-track simultaneous recording.

Beneﬁts of a Digital Mixer

You’re probably already familiar with the many beneﬁts offered by digital audio, but

what exactly are the beneﬁts for digital audio mixing? Well, an audio mixer has the job

of combining audio signals from various sources, at differing levels and impedances,

usually into a stereo mix. And it must do this without introducing any new distortions

and noise. Analog mixers do a pretty good job, but even with the best designs, nonlinear

effects caused by circuit components are unavoidable.

In the digital realm, audio mixing consists of adding and multiplying binary numbers

that represent audio signals. The DSP (Digital Signal Processor) chips used for these

calculations never get their sums wrong. So once past the initial A/D conversion, audio

signals are immune from signal degradation. With the 03D, noise, distortion, and

crosstalk are virtually eliminated. You’ll hear a new clarity in your mixes.

Once in the digital domain, it makes sense to keep audio data digital, as multiple

AD/DA conversions can degrade signal quality. With the optional YGDAI interface

cards, the 03D can be connected directly to a modular digital multitrack recorder,

thereby keeping audio data in the digital domain for both recording and mixing. The

ﬁnal stereo mix can be transferred to a two-track digital recorder using the 03D’s

AES/EBU or Coaxial digital output.

Onboard digital effects and dynamics processors mean that signals remain in the digital

domain, eliminating unnecessary AD/DA conversion. Signal processing is performed

by third-generation Yamaha DSPs, as used in the Yamaha ProR3 Digital Reverberator.

03D Sonic Performance

The 03D’s linear 20-bit 64-times oversampling A/D converters provide a typical

dynamic range of 105 dB. The 03D can generate the industry standard sampling rates

of 44.1 kHz and 48 kHz, or synchronize to an external wordclock source from 32 kHz

–6% to 48 kHz +6%. The stereo output and monitor output feature 20-bit 8-times

oversampling D/A converters, while the aux sends and bus outs feature 18-bit 8-times

oversampling D/A converters. Oversampling techniques effectively increase the inter-

nal sampling rate, so side effects caused by steep low-pass ﬁlters, which are used to ﬁlter

out sampling frequency components during D/A conversion, are virtually eliminated.

Consequently, audio signal integrity is maintained from input through to output.

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 301 302

Comments to this Manuals

No comments

Alesis 03D User Manual Page 14

Comments to this Manuals

Related products and manuals for Musical Instruments Alesis 03D