Loudness Maximizer
The Loudness Maximizer is a digi-
tal compressor/limiter employing com-
pletely new techniques to gain per-
fectly optimized loudness. Developed
in cooperation with the University of
Bremen/Germany, the algorithms are
constantly responding to the charac-
teristics of the input signals to process
with highest musical efficiency. Even
previously processed mixes can gain
additional subjective loudness with-
out introducing distortions or loosing
punch.
The loudness of a digital full scale sig-
nal (0 dBfs) is maximized without tonal
changes at all – transients, sound co-
lours and the spatial images remain un-
changed,while an absolutely clip-free
full scale signal is guaranteed.
Nothing but loudness
Unlike usual compressors, the Loud-
ness Maximizer does not divide the
signal in frequency ranges but proces-
ses the audio material homogenously.
Together with “no-knee”compression
characteristics most unobtrusive ope-
ration is ensured.
Standard processing configurations
can be stored in 99 presets.All the para-
meters for dynamic processing are con-
stantly controlled by the audio itself.
This reduces the number of controls
to three pots and one switch function
and optimizes the processing results:
no “pumping”, no other side effects at
all.
Indispensable
The Loudness Maximizer is perfectly
suited for applications in mixing,maste-
ring,post-production and broadcast.
Features
• Internal 56-bit resolution
• Supports mono and stereo proces-
sing
• Extremely efficient operation – only
three controls and one switch!
• Adaptively automated processing –
settings are controlled by the audio
itself
• Unique Look Ahead function: the Pos-
sible Display indicates possible
loudness maximization
• No pumping or any other side effects
• All encoders with “analog”control fee-
ling and alpha-dial logic
• Operates with 24 bit word width and
accepts any word width from 16 to
24 bit (output resolution corresponds
to input resolution)
• High precision Level-Meter
• Soft/Hard control to adjust intensity
• Stores up to 99 presets (selectable by
MIDI program change)
• MIDI fade out
• Synchronisation: Wordclock In and
Wordclock Through BNC connectors
with switchable 75 Ohms termination
• PC and MAC update ports
Applications
• Zero-Overshot-Limiting (clip-free
loudness maximizing is guaranteed)
• Zero-headroom-optimizing
• Loudness-maximizing in mastering
• Loudness maximizing of single takes
during mastering
• Level limiting in broadcast
Specifications
Input/Output
Sample rate frequency: 32-48 kHz, automatic
AES/EBU, twisted pair (1), AES 3
AES/EBU in- & output impedance: 110 Ohms
S/P-DIF, co-axial (2), SPDIF-2
S/P-DIF input impedance: 75 Ohms
Wordclock In/Through, co-axial, BNC
Wordclock in- & output impedance: 75 Ohms
MIDI In/Through
RS 232: software update PC
RS 422: (max +/- 14 V), software update MAC
Signal and Clip indicators
Input transformer: AES
Output transformer: AES
Relay Hard Bypass: AES
Measurements
AES/EBU: Jitter 1 ns
S/P-DIF: Jitter 3 ns
Wordclock In: Jitter 1.5 ns
Signal delay: 5 ms
Power supply
Toroidal transformer 60 VA
Fuse 1A/slow blow
GND-Lift switch, voltage selector 115 V/230 V
Dimensions
19"/1U; 44.45 x 482 x 350 mm
Weight: 4.9 kg
(1)AES/EBU is defined for levels from 2 V to 7 V.
Measurements AES/EBU: 4.4 V with load.
(2)S/P-DIF is defined for levels from 200 mV to 700 mV.
Measurements S/P-DIF: 500 mV with load.
Loudness Maximizer Model 9632
Loudness Maximizer Rear View
Sound Performance Lab · Sohlweg 55 · D-41372 Niederkruechten/Germany · Phone +49 · 2163 · 9834-0, F
ax -20 · E-Mail
[email protected]om / www
.soundperformancelab.com
© 2000 SPL electronics GmbH. All rights reserved.Subjects to change without notice.
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