DHD RM3200D Manual

1. Introduction
The Digital Audio Mixer RM3200D is especially designed for applications in broadcasting. It
can equally be used for:
• Broadcast and pre-production for self operation studios or control rooms with one or
more studios
• Routing applications
• Audio workstations for editors
• Stations for sound editing and recording
• Video-postsynchronisation and cutting
Up to date workstations in the broadcasting business are often used by people who have
small or no technical background. Therefore, the control desk of RM3200D has been
especially designed for ease of use and accessability.
For the use in On-Air studios, the mixer can be integrated with automation systems.
Optional motor faders can also be used.
RM3200D is the ideal mixer for computer aided systems for sound editing and recording.
All necessary functions for these applications are integrated into the system without having
to be specified by the user:
• N-1-summation (mix minus) with preparation mode
• Monitoring including monitor-mute at open microphone
• Independently adjustable monitor and headphone outputs
• In and Out of talkback signals
• Red-light signalling or fader start contacts and many other logic functions.
Further special functions for monitoring and logic that are typical for broadcasting can be
configured.
Microphone processors can be replaced by the DSP functions of the RM3200D: equalizers,
dynamic unit (compressor, expander, noise gate) and deesser are integrated. User specific
configurations can be stored in Flash-EPROMS. The assignment of the faders to the input
channels is stored as well.
RM3200D is the first digital audio mixer of this class where the internal signal processing is
carried out with 32bit Floating Point DSPs (Analog Devices SHARCs). Internal
overmodulations as sometimes occurring in devices with fixed point processors should not
occur here, since the dynamics range is greater than 1000 dB(!).
Asynchronous sample rate converters are used in the digital inputs of the RM3200D. Thus,
digital consumer devices and non-synchronisable professional devices can be digitally
connected to the mixer.
Despite its wealth of features and its flexibility in adapting to different applications, the costs
for the mixer are competitive compared to an all-analog setup.

Chapter 1: Introduction

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