DWX seriesSend - Receive - ControlDigital wireless microphone system

Markus Warlich – Sony Europe

SONY PROFESSIONAL

1st VHF Wireless Mic System introduced

UHF Linear Wireless Mic System introduced

WL-800 Series Synthesized System

WRT-847 & WRT-860 introducedFreedom Range launched

UWP launched

2008

ECM-77B launched for Wireless TX

New UWP launched

2008

Digital Wireless Plug on TX launched

Analogue Wireless

Digital Wireless

1972 1979 19951991 2003 1999 1985

The Digital Era

2009

2010

1962

1st investigation and test system

2012

Digital Wireless DWM launched

“Digital Wireless Studio System”

Historie

Technology • 1st UHF PLL Synthesized Wireless Mic System.• 1st System to use direct 800 MHz VCO oscillation.• 1st Wireless system to achieve 282 selectable channels.• 1st To Use LCD displays on both TX’s & RX’s.• 1st To Use AA cell operation.• 1st Wireless mic to utilise 32KHz pilot tone squelch system• 1st System to store inter-modulation free groups.• 1st To introduce Space Diversity RF reception in WM systems.• 1st To realize 42 operational channels with a 36 MHz band.• 1st Wireless mic to indicate accumulated time. (Hrs & Mins).• 1st To use an A/D converter to drive AF display.• 1st High quality Code(24Bit/48KHz) for Digital wireless• 1st 2.4GHz Wireless Remote control System

Best Audio

RF Transmi

ssion

Multi Channel

Control

Security

Flexibility

Why digital?

RF Transmission Multi Channel

Key Technology – Digital Modulation

High quality soundRequired sound quality level is increased by Digital transmission

technology.

Stable transmissionEven if wireless condition becomes worse, stable transmission must to

have.

Simultaneous multichannel operationMore channels are required under limited White Space.

LatencyMore Latency = time for error correction

Stable transmissionLatency

Simultaneous channel

Best audio

• Unexpected Noise

• Low RF level

• Multipath Fading

• Doppler Fading

Key Technology – Digital Modulation Main cause of unstable digital wireless transmission

PSK is sending a data stream by Phase modulation

Amplitude : Constant

What’s m-PSK/APSK modulationPSK(Phase-shift keying) is mainly using for digital wireless transmission under European Standard (ETSI 300 422) /200kHz BW （ Bandwidth ）

“1”“0”

Phase change 0 degree 1Phase change 180 degree 0

Symbol rate (baut per second) = Bandwidth/roll off factor

modulation BPSK QPSK 8PSK 16-APSK 32-APSK 64-APSK

constellation

Symbol rate Low1bit/symbol

Reference 2bits/symbol

　3bits/symbol

　4bits/symbol

　5bits/symbol

High6bits/symbol

Bit rate Low Reference256kbps > 384kbps > 512kbps > 640kbps

High> 768kbps

RobustnessAgainst

Fading, Weak RF

High Reference Low

ErrorCorrection level

Low Reference High

DWXWiDIF-HP

WiDif-HP is good balanced transmission codec whichrealize high quality sound with reliable operation. 1. Sony original Audio CODEC with error compensation 2. Maximize audio data rate with minimum error compensation 3. True Diversity reception by using phase quality data

Reliability of data transfer is down as Symbol rate is up.

Latency is increased as Symbol rate is up , because error correction is complicated.

Key Technology – Digital Modulation

π/4 QPSK (quadrature phase-shift keying)

Key Technology – Digital Modulation

256kbps

DWX need only 20dB D/UAnalog need 40dB

Key Technology – Digital Modulation

SONY PROFESSIONAL

No Third Order Intermodulation Problem

500kHz between Channels

Key Technology – Digital Modulation

****** Successive TV-Channel ******

Key Technology – Digital Modulation

Best Audio

Sony DWX-Series Audio Codec is optimised for • best audio quality• stable transmission• low latency

The system don‘t use any signal compression or compandingon the analog audio side. The codec use a clever bit shifting and bit compression in the digital domain for saving bandwidth.

The system is overall not lossless.

Key Technology – Audio Codec

Stable transmissionLow latencyBest audio

0,2ms 1ms 0,3ms

0,4ms 1ms 0,5ms

Key Technology – Audio Codec

256kbps

Key Technology – Audio CodecDWX Frequency response

Key Technology – Audio Codec

Key Technology – Audio Codec

<Signal Generator> <Oscilloscope>

　 MODEL: Agilent 33220A 　 MODEL: YOKOGAWA DL1740

　 Serial No.: MY43004538 　 Serial No.: 12A205689　 Signal Frequency: sin wave 4kHz

　 MONITOR(LEVEL): 20mV/div

　 Amplitude: 120mVpp (about -25dBu) 　 MONITOR(TIME): 50msec/div

　 Offset: 0V 　 Bandwidth: 20MHz

　 Burst Cycle: 10　 Interval time: 3/6/10/15/20/30/40/60/100/200 msec

Impuls responce

Key Technology – Audio Codec – Analog vs. Digital

Generator Interval Setting 10 [msec] Hybrid System Analog System DWX System

Key Technology – Audio Codec – Digital vs. DigitalDWM-02, DWR-R02DYELLOW ： Input Waveform(Signal generator to DWM-02)-40dBV unbalance 100Hz 1cycle

DWM-02, DWR-R02DYELLOW ： Input Waveform(Signal generator to DWM-02)-40dBV unbalance 1000Hz 1cycle

DWM-02, DWR-R02DYELLOW ： Input Waveform(Signal generator to DWM-02)-40dBV unbalance 4000Hz 1cycle

DWM-02, DWR-R02DYELLOW ： Input Waveform(Signal generator to DWM-02)-40dBV unbalance 8000Hz 1cycle

5cycle

U.S. digital SystemYELLOW ： Input Waveform

Summery

Sony DWX-Series Audio Codec is optimised for • best audio quality• stable transmission• low latency

Best frequency response (flat 10Hz -22kHz)Best impuls responceStable phase….like a cable microphone

Key Technology – Audio Codec

Stable transmissionLow latencyBest audio

Control

inter

activ

e

UHFUHF Meta data

bidirectional

bidire

ction

al

bidirectional

Key Technology – Cross Remote

UHF470 – 862MHz 2,4GHZ

IEE 802.15.4

Key Technology – Cross Remote

UHF470 – 862MHz 2,4GHZ

IEE 802.15.4

DWR-S02DSlotIn Receiver

Key Technology – Cross Remote

TX Active/Sleep

TX frequency

TX RF power

TX ATT Gain/Mic /Line

TX Name

TX Battery Timer

TX Lock, LCF, SGN, 48V…

TX Audio Input Peak

Batteiery remaining

TX Name

TX LCF

TX ATT Gain

UHF & Meta data

2,4GHz

Key Technology – Cross Remote

Key Technology – Cross Remote

• Audio transmission works without Crossremote.

• Audio transmission and Crossremote are independent from each other.

• System book In/out all devices automaticly after first paaring

Tes• With Crossremote you can control

all features an all devices

Security

SONY PROFESSIONAL

Metadata transmission TX transmits battery status, RF level information, and even the performer’s name to RX

Password (Multiuser, 48 Bit)USB (Single, 56-Bit)On Air (56-Bit)

Key Technology - EncryptionEncryption enables secure audio transmission

3 Level data serure transmission

1. Digital data scheme is Sony original (Not opened)

2. The transmission packet format is Sony original (Not opened)

3. 56Bit encryption

Key Technology - Encryption

SONY PROFESSIONAL

DWX-Series products:• 2 Receivers• 2 Handheld transmitters• 1 Pocket transmitter• 1 PlugOn transmitter• 1 Antenna distributer• 2 Antennas for UHF• 1 Remote antenna for RF-Remote (Cross Remote)• 1 Control software for WinXP / WIN7 • 2 Adapters for non Sony camcorder or mobile user

DWX-Series - Line Up

DWA-F01D DWA-01D

DWA-F01D for every mixer bag

DWA-01D for camera back mount

DWR-S02D is the only 2CH working receiver

in Sony XDCAM (Models after 2008)

Receiver DWR-S01D and 02D

SONY PROFESSIONAL

4-channel system2-channel SlotIn 2-channel back mount

Examples of PDW-700 4 channel with DWA-01D

Area for wireless microphone system status on VF display

“W” : Receiver : ConnectedBlank : Receiver disconnected / Turn off Receiving channel

Power off ( Blank )(No indication channel and Icon)

RF level : (Weak -> High)

Muting or Error ( Gray out )

Battery alarm ( Blink )

AF PEAK INDICATION ( “P” mark )

1

View Finder Display for PDW-700

DWX-Series – DWR-R02D Receiver

DC In

SW power supply

16ch stacking with active antenna out

Flexibility

DWX-Series - DWM-02 handheld microphone

CU-F32 CU-F31 CU-C31

DWX-Series - DWM-02 handheld microphoneMount System Manufacture/Brand Capsule Name Wired Name Variation Capsule Type Directivity Frequency Response

SHURE mount (23)

SONY (3)CU-C31 - Black Electret Condenser Cardioid 60 Hz to 20 kHzCU-F31 - Black Dynamic Super-Cardioid 60 Hz to 18 kHzCU-F32 - Black Dynamic Wide-Cardioid 70 Hz to 18 kHz

SHURE (9)

RPW184 KMS9 Black/Champagne Electret Condenser Cardioid 50 Hz to 20 kHzSuper-CardioidRPW124 VP68 Black Electret Condenser Omni 40 Hz to 20 kHzRPW122 Beta87C Black Electret Condenser Cardioid 50 Hz to 20 kHzRPW120 Beta87A Black Electret Condenser Super-Cardioid 50 Hz to 20 kHzRPW118 Beta58A Black Dynamic Super-Cardioid 50 Hz to 16 kHzRPW116 SM87A Black Electret Condenser Super-Cardioid 50 Hz to 18 kHzRPW114 SM86 Black Electret Condenser Cardioid 50 Hz to 18 kHzRPW112 SM58 Black Dynamic Cardioid 50 Hz to 15 kHzRPW110 PG58 Black Dynamic Cardioid 60 Hz to 15 kHz

Electro-Voice (6)

RE510 Capsule RE510 Black Condenser Super-Cardioid 50 Hz to 20 kHzPL80a Capsule PL80a Black Dynamic Super-Cardioid 80 Hz to 16 kHzN/D967 Capsule N/D967 Black Dynamic Super-Cardioid 50 Hz to 13 kHzN/D 267a Capsu;e HHCN/D267a Blackk Dynamic Cardioid 45 Hz to 15 kHz

Lectrosonics (1) HHC - Black Condenser Cardioid -

HEiL Sound (2)RC 35 Capsule RC 35 Black Dynamic Cardioid 40 Hz to 18 kHzRC 22 Capsule RC 22 Black/Nickel/Gold Dynamic Cardioid 50 Hz to 18 kHz

Telefunken (1) M80-WH M80 Black/Chrome Condenser Cardioid 30 Hz to 18 kHzEarthworks (1) WL40V SR40V Black Condenser Hyper-Cardioid 30 Hz to 40 kHz

SENNHEISER 5000 mount (10)

Neumann (3)KK104-S KSM-104 Black/Nickel DC Bias Condenser Cardioid 20 Hz to 20 kHzKK105-S KSM-105 Black/Nickel DC Bias Condenser Super-Cardioid 20 Hz to 20 kHzKK105 HD KSM-105 Black/Nickel DC Bias Condenser Hyper-Cardioid 20 Hz to 20 kHz

SENNHEISER (7)

ME 5009 - Black Electret Condenser Wide-Cardioid -ME 5005e - Black Electret Condenser Super-Cardioid -ME 5005 - Black Electret Condenser Super-Cardioid -ME 5004 - Black Electret Condenser Cardioid -ME 5002 - Black Electret Condenser Omni -MD 5235 - Black/Nickel Dynamic Cardioid -MD 5005 - Black Dynamic Super-Cardioid -

Audix mount (4) Audix (4)

T367-CA OM7 OM7 Black Dynamic Hyper-Cardioid 45 Hz to 19 kHzT366-CA OM6 OM6 Black Dynamic Hyper-Cardioid 40 Hz to 19 kHzT365-CA OM5 OM5 Black Dynamic Hyper-Cardioid 48 Hz to 19 kHzT363-CA OM3 OM3 Black Dynamic Hyper-Cardioid 50 Hz to 18 kHz

• 125gr including battery• Mic/Line input• OLED display• 1/10/50mW switchable• 5,5 h AA Batteries (10mW)• 10,5 h AA rechargeable Batteries

(10mW)• 1KHz Testone• LFC switchable (20-220Hz)• Cross Remote

DWX-Series - DWT-B01/ Poket Transmitter

• 245gr incl. battery• Mic/Line input• OLED display• Cross Remote• 1/10/50mW switchable• 5,5 h (10mW)• 1KHz testone• LFC switchable• 48V phantom power• 10,5 h AA Rechareable Batteries (10mW)

DWX-Series - DWT-P01 PlugOn Transmitter

Can handle up to 64-channel

DWX-Series - WD-850A signal Splitter/Combiner

RMU-01 - Remote UnitFor up to 82 transmitter

DWX-Series - AN-01 and RMU-01

AN-01 – 470-862MHz

System manager for all features of a system. Setup, control and manage from your Laptop.No need to touch receiver or transmitter anymore.

DWX-Series - Wireless Studio 3

DWX-Series – System Guide