Klark Teknik DM8500, Быстрый старт

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14
DM8500 Quick Start Guide
15
5.1 DSP Algorithm Library
Group Name Module Name Description
AEC
Acoustic Echo Cancellation
(AEC)
Proprietary AEC algorithm offers
24 channels of AEC that can be freely
assigned wherever needed in your
system design.
Mixers
Auto Mixer
Automatically adjusts mixer gain for mixer
output and direct output.
Standard Mixer
Adjusts mixer input and output
level independently.
Matrix Mixer Assigns inputs to one or more outputs.
Matrix Mixer Delay Matrix Mixer with delay.
Auto Mixer Combiner
Reduces the background noise and risk
of feedback in multiple microphone
applications.
Room Combiner
Enhances the capabilities of zone routing
where the zones are configurable.
Equalisers
Parametric
Allows precise EQ shaping by using
frequency filters with adjustable center
frequency and width.
Graphic
Adjusts EQ with filters on fixed
frequency bands.
Feedback
suppressors
Automatically eliminates feedback by
monitoring the signal and deploying notch
filters when feedback has been detected.
Crossovers
2 Way Crossover Splits audio signals by frequency for
separate processing. Module splits
the signal at 2, 3 or 4 adjustable
frequency points.
3 Way Crossover
4 Way Crossover
Crossover Filters
Butterworth Low/High Pass
Includes an adjustable filter slope that
can be set to 6, 12, 18, 24, 30, 36, 42 or
48 dB per octave.
Linkwitz-Riley Low/High Pass
Includes an adjustable filter slope that can
be set to 12, 24, 36 or 48 dB per octave.
Low/High Shelf Filter
Offers adjustable gain from -27 dB
to +9 dB.
All Pass Filter
Module affects signal phase only, and the
module can be used to compensate for
phase anomalies.
Dynamics
Leveler
Automatically adjusts gain based on long-
term signal averaging.
Comp/Limiter
Automatically adjusts gain based on
short-term signal dynamics.
Ducker
Module has two inputs, one input for the
primary signal, the other input for the
triggering signal. When the triggering
signal reaches threshold, the module
reduces or “ducks” the gain of the
primary signal.
Noise Gate
Automatically mutes until the
gate is activated and opened by an
incoming signal.
Ambient Noise Compensator
Automatically adjusts volume in response
to changing background noise levels.
External mics are used to monitor ambient
background noise.
5. Operation
The DM8500 DSP is equipped with comprehensive library of processing modules that can be deployed and configured remotely by using the DM8500’s PC software.
The user can build the entire processing structure and signal routing using the remote software, and then compile and send to the DM8500 DSP.
Group Name Module Name Description
Routers
Routers
Module allows each input to be assigned
to multiple outputs via In/Out. Each
output allows only one assigned input
at a time.
Source Selection
Selects a single input from
multiple input sources.
Delay Module is used to delay an audio signal.
Controls
Level Control Adjusts an audio signals level.
Invert
Reversed the polarity (phase) of an audio
signal by 180°.
Mute Reduces an audio signal’s level to zero.
Preset
Recalls system parameters at either a
global or local level.
Remote Preset
Interfaces with external devices to control
settings.
Logic Gates Processor
Interprets and responds to
logic signal events.
Logic Delay Adjusts logic output time.
Meters
Signal Present Meter Indicates signal presence.
Peak Meter Indicates peak signal level.
RMS Meter Indicates average signal level.
Logic Meter Indicates presence of logic trigger voltage.
Generators
Tone Generator Generates a single-frequency signal.
Pink Noise Generator
Generates broad frequency noise shaped
to the Pink Noise standard.
White Noise Generator
Generates broad frequency noise with
even spectral density.
RS232
Format 8-N-1, 38,400 baud
Connector DB9 female
Performance
Frequency response
20 Hz to 20 kHz
(±1 dB, input to output @ +4 dBu)
THD+N (1kHz @ 0 dB gain, +4
dBu output)
< 0.005% (Bandwidth = 20 Hz-20 KHz)
Equivalent input noise
-125 dBu (Bandwidth= 20 Hz-20 KHz,
gain = 66 dB, RS = 150 Ω)
Dynamic range
> 105 dB (Bandwidth = 20 Hz-20 KHz,
none weighted)
A/D - D/A conversion multi-bit ΣΔ
AEC Module
Support 6 AEC Modules
(Up to 24 channels totally)
Each AEC module tail length
setting options:
150ms with 4 channels or
300ms with 2 channels
Each AEC Module can set individually
AEC convergence up to 100 dB/sec
Power Requirements
Voltage 100 VAC to 240 VAC ±10 %
Frequency 50 ~ 60 Hz
Consumption < 48 W
Dimension / Weight
Dimensions (H x W x D) 44 x 483 x 293 mm (1.7 x 19 x 11.5")
Weight
Net: 3.6 kg (7.9 lbs)
Shipping: 4.8 kg (10.6 lbs)
Temperature Range
Operation +0° C to +45° C
Storage -20° C to +60° C
Due to a policy of continual improvement, Klark Teknik reserves the right to alter the function or specification at
any time without notice.
6. Technical Specifications
Analogue Inputs
Number of channels 10
Type
Analogue, electronically balanced
Euroblock connectors
Impedance 10 kΩ
Maximum input level +24 dBu
Gain range 0 to +66 dB with step 6 dB
Common mode rejection Typically, 60 dB at 1 kHz
Crosstalk (inter-channel @ 1 kHZ) < -75 dB
Phantom power +48 VDC, 7mA per channel
Analogue Outputs
Number of channels 6
Type
Analogue, electronically balanced
Euroblock connectors
Output impedance 200 Ω, balanced
Maximum output level -31 dBu to +24 dBu
Dante Input / Output Characteristics
Number of channels 64 input / 64 output
Connector 2 x RJ45
Sample rate 48 kHz
Resolution 24-bit
DM8500 internal latency < 1.8 ms
DM8500 Dante latency
0.25 ms, 0.5 ms, 1.0 ms, or 5.0 ms
(set by Dante controller)
Clock synchronization
Incoming Dante clock or
DM8500 internal clock
ULTRANET Digital Network
Number of channels 16 out
Connector RJ45
Sampling rate 48 kHz
Latency < 1.8 ms
Cable Shielded CAT-5
Cable length Up to 75 m / 250 ft
USB Audio
Number of channels 2 in / 2 out
Resolution 16-bit
Sampling rate 48 kHz
Type Audio Class 1.0 compliant
Connector USB, type B
GPIO
Number of channels 6
Input voltage 0 to 5 V
Input impedance
4.7 kΩ to +5 V (2-wire mode)
> 1 MΩ (3-wire mode)
Output voltage 0 / 5 V (unloaded)
Output impedance
550 Ω (source)
10 Ω (sink)
Output current
-1 mA (source) (Vo ≥4 V)
20 mA (sink), (Vo ≤ 0.4 V)
+5 V supply current 150 mA max