Peavey MEDIAMATRIX MM-DSP DATASHEET

Description

The MediaMatrix¨MM-DSP Series DPU
(Digital Processing Unit) boards are the
heart of the MediaMatrix Mainframe DSP
engine. Each DPU contains four Motorola

¨

56002 DSP chips and is capable of
greater than 100 MIPS (Million Instructions
Per Second). The MM-DSP Series utilizes
PeaveyÕs exclusive V-Stacªcoding which
doubles the processing efficiency and
resulting capabilities of each DSP chip.
Each board also handles 32 input and 32
output audio channels, and performs 24­bit processing. The MM-DSP Series uses
double-precision filtering for superior
accuracy of audio filtering frequency
centers and filter skirts.

There are three models in the MM-DSP
Series. The first is the MM-DSP DPU for
processing standard audio sources via up
to four 8800 Series BoBÕs (8-channel-in by
8-channel-out A-to-D/D-to-A Break-out
Boxes). The second is the MM-DSP-AES
for processing 32-channels-in by 32­channels-out of AES/EBU standard digital
audio (16 channels each of stereo AES3
signals). This is done via the MediaMatrix
16XT AES/EBU transformer-isolating
interface box. The third is the MM-DSP­CN for processing audio ported to or from
an Ethernet network. This is done via up

to four CAB

ª

8iÕs (eight-inputs each) and
an unlimited number of CABª8oÕs (eight­outputs each). The CAB units are audio
bridges that port audio on and off a
standard 10/100BaseT Ethernet network
utilizing CobraNet¨protocol.

The MM-DSP model has a software­selectable sample-rate that matches it to
the sample-rate of the MM-8800 Series
BoB to which it is interfaced. Depending
on the BoB used, either 32, 44.1, or
48 kHz can be chosen. The MM-DSP-AES
also has a software-selectable sample­rate. It supports 32, 44.1, and 48 kHz
sampled AES/EBU standard digital audio.
The DSP-CN operates only at a 48 kHz
sampling rate.

Features

¥ 4 Motorola 56002 DSP chips on each

DPU board
¥ 24-bit processing
¥ 32 digital audio input channels and 32

digital audio output channels
¥ ISA bus edge connectors enable easy

mixing and matching of DPU boards for

custom system configurations
¥ Software-selectable sample-rates for

both MM-DSP-AES and MM-DSP DPU

boards

¥ Greater than 100 MIPS (Million

Instructions Per Second) calculating
speed

¥ Double-precision DSP filtering for

accurate filter characteristics

¥ Exclusive V-Stac coding doubles

processing efficiency

Applications:

Anywhere MediaMatrix is used, such
as:
¥ Stadiums
¥ Cruise ships
¥ Multi-purpose facilities
¥ Auditoriums
¥ Large-scale paging systems
¥ Schools
¥ Courts of law
¥ Airports
¥ University campus buildings
¥ Theme parks
¥ Performing arts centers
¥ Distance learning centers
¥ Hotel meeting room complexes
¥ Houses of worship
¥ Conference centers
¥ Teleconferencing systems
¥ Civic centers
¥ Theaters
¥ Arenas

SPECIFICATIONS

MediaMatrix

®

MM-DSP
SERIES

NOTICE!

THIS IS ATEMPORARY COPY

OF THE SPEC SHEET.

STANDARD SPEC SHEETS NOT AVAILABLE

ATTIME OF PRODUCT RELEASE

.

SPECIFICATIONS

Digital Audio Channel Capacity:

Up to 32 input channels and 32 output
channels out per DPU board for all DPU
board types

DSP Compliment:

4 Motorola 56002 DSP chips per DPU

Processing Resolution:

24-bit processing

Sampling Rates:

MM-DSP: Software-selectable, either 32,

44.1, or 48 kHz
MM-DSP-AES: Software-selectable,
either 32, 44.1, or 48 kHz for each
stereo input source. Output sample rate
is selected when view file is compiled.

MM-DSP-CN: 48 kHz only

Speed of Calculations:

MM-DSP: 128 MIPS
MM-DSP-AES: 136 MIPS
MM-DSP-CN: 168 MIPS

Digital Audio Bussing:

256 inter-board channels (between DPU
boards),
256 inter-cell channels (between DSP
chips)

Software Coding:

Exclusive V-Stac coding provides twice
the normal code efficiency

Filtering Algorithms:

Calculated using double-precision
mathematics for more accurate audio
filter frequency centers and slope-rates

Connectors:

MM-DSP: (2) DB-9 female-pinned

connectors on board attachment bracket,
(2) DB-9 female-pinned connectors on a
separate, ribbon-cabled attachment
bracket
MM-DSP-AES: (1) DB-37 female-pinned
connector on board attachment bracket
(1) DB-37 female-pinned connector on a
separate, ribbon-cabled attachment
bracket
MM-DSP-CN: (1) RJ-45 female
connector on board attachment bracket

Net Weight:

Approximately 1 lb. (0.45 kg), all models

Maximum Power Consumption and
Heat Generation:

Not more than 25 Watts, 85 BTU/Hr.

ARCHITECTÕS AND
ENGINEERÕS
SPECIFICATIONS

MM-DSP:

The MediaMatrix MM-DSP DPU board
shall provide digital audio signal
processing for the MediaMatrix
Mainframes and Miniframes. It shall
interface to the 8800 Series Break-out
Boxes which provide audio-to-digital and
digital-to-audio conversion of sound
system signals. It shall employ (4)
Motorola 56002 DSP chips for 24-bit
processing of 32 digital audio input
channels and 32 digital audio output
channels. The DPU board shall perform
128 MIPS (Million Instructions Per
Second). The MM-DSP DPU board shall
operate at either of (3) software-selectable
sampling rates: 32 kHz, 44.1 kHz, or
48 kHz. It shall employ double-precision
filter calculations for more accurate audio
filter frequency centers and slope-rates.
V-Stac coding shall be employed in the
programming code to double the codeÕs
efficiency. During CPU failure, the MM­DSP DPU board shall continue to operate
without interruption. DSP processing of
lesser capabilities shall not be acceptable.
The DPU board shall be the MediaMatrix
MM-DSP.

MM-DSP-AES:

The MediaMatrix MM-DSP-AES DPU
board shall provide AES/EBU-standards­compliant digital audio signal processing
for the MediaMatrix Mainframes. It shall
interface to the 16XT break-out box which
provides transformer-isolation and
facilitates easy wiring to AES/EBU digital
audio devices. It shall employ (4) Motorola
56002 DSP chips for 24-bit processing of
32 digital audio input channels and 32
digital audio output

channels in (16) AES3 digital audio stereo
pairs. The DPU board shall perform 136
MIPS (Million Instructions Per Second).
The MM-DSP-AES DPU board shall
sample stereo audio input sources at
either 32, 44.1, or 48 kHz. Its output­sampling rate is selected by compiling the
view file at either 32, 44.1, or 48 kHz. It
shall employ double-precision filter
calculations for more accurate audio filter
frequency centers and slope-rates.
V-Stac coding shall be employed in the
programming code to double the codeÕs
efficiency. During CPU failure, the MM­DSP-AES DPU board shall continue to
operate without interruption. DSP
processing of lesser capabilities shall not
be acceptable. The DPU board shall be
the MediaMatrix MM-DSP-AES.

MM-DSP-CN:

The MediaMatrix MM-DSP-CN DPU board
shall provide CobraNet

¨

digital audio
signal processing for the MediaMatrix
Mainframes. It shall interface to the CAB
8i and CAB 8o CobraNet break-out boxes
which port real-time audio onto and off of
a standard 10/100BaseT Ethernet
network. It shall employ (4) Motorola
56002 DSP chips for 24-bit processing of
32 digital audio input channels and 32
digital audio output channels. The DPU
board shall perform 168 MIPS (Million
Instructions Per Second). The MM-DSP­CN DPU board shall operate at a 48 kHz
audio-sampling rate. It shall employ
double-precision filter calculations for
more accurate audio filter frequency
centers and slope-rates. V-Stac coding
shall be employed in the programming
code to double the codeÕs efficiency.
During CPU failure, the MM-DSP-CN DPU
board shall continue to operate without
interruption. DSP processing of lesser
capabilities shall not be acceptable. The
DPU board shall be the MediaMatrix MM­DSP-CN.

Note: Motorola

¨

is a registered trademark
of Motorola, Inc. CobraNetªis a trademark
of Peak Audio, Inc.

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