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Table of Contents
Related Manuals for Soundfield ST350
Summary of Contents for Soundfield ST350
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Page 1: User Guide
User Guide Version 1.02 System comprises: • ST350 Microphone • ST350 Control Unit • Stand Adapter • 5 Metre 12 pin Lemo Mic Cable (Mic to Controller) • B-Format Output Cable (10 pin Lemo Connector to 4 male In Line XLR) -
Page 2: Safety Considerations
MICROPHONE SYSTEM SAFETY CONSIDERATIONS CAUTION - EXTERNAL MAINS POWER SUPPLY THE MAIN POWER SUPPLY SUPPLIED WITH EACH ST350 IS FOR INDOOR USE ONLY AND HAS NO USER SERVICEABLE PARTS INSIDE. DO NOT PERFORM ANY SERVICING; REFER ALL SERVICING TO QUALIFIED PERSONNEL. -
Page 3: Table Of Contents
Surround Post-Production: Part Two: The SP451 Surround Processor - Rechargeable Battery Procedure Warranty Shipping and Quality Assurance 10 Pin Lemo B-Format Output Wiring Details 12 Pin Connector Wiring Details for SoundField Microphone Cables Technical Specifications - Accessories 25-26 Table of Contents... -
Page 4: Soundfield History
This single point source pick-up principle avoids all of the time - or phase-related anomalies generated by spaced microphone arrays. Thus, surround recordings made with SoundField microphones can be collapsed to stereo - or stereo recordings to mono - without the phase problems that result in “comb-filtering” (phase cancellation) distortions. -
Page 5: Introduction
‘dummy head’ arrangements. The ST350 can be powered by either battery (see page 19) or mains electricity and the microphone can be used at close quarters on a hand held boom or alternatively situated up to 200 metres from the control unit on the relevant SoundField mic extension cables (see accessories on page 25). -
Page 6: How Does It Work
The four outputs from the capsules of SoundField microphones (called SoundField A- Format) are converted by the ST350 processor into four components known as SoundField B-Format. These convey all of the information of the entire soundfield, and are the three directional vectors - Left/Right, Front/Rear and Up/Down - and absolute pressure. - Page 7 By recording the four B- Format outputs from the ST350 controller these components can be preserved for subsequent production and processing of current and all future surround formats.
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Page 8: Controls
SoundField ST350 User Guide CONTROLS 1. Gain A switched gain control adds further gain to the microphone in 6dB steps. A switch has been selected in preference to a potentiometer to provide excellent level matching of the four capsule signals. - Page 9 SoundField ST350 User Guide status of the End Fire switch. This mode is particularly necessary when the microphone is mounted in a Rycote or on a fishpole and pointed directly at the sound source. 4. Pattern The Polar Pattern control is continuously variable ranging from Omni through Sub- Cardioid, Cardioid, Hyper-Cardioid to Figure-of-eight and sets the polar patterns used for the stereo pair.
- Page 10 W, X, Y & Z analogue balanced line level outputs on 10 pin Lemo (see page 22 for wiring diagram). A 10 pin Lemo to 4 male XLR breakout cable is supplied as standard with each ST350 system (part no. 3101). 4. DC IN The DC input can range between 9 and 18V DC and requires 7W of power consumption.
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Page 11: Rycote Assembly Instructions
SoundField ST350 User Guide RYCOTE ASSEMBLY INSTRUCTIONS Remove end of Windshield by turning in an anti-clockwise direction. Loosen the two black plastic bolts situated on the Pistol Grip under the Windshield. Remove Windshield by gently sliding away from the Pistol Grip. - Page 12 SoundField ST350 User Guide Insert microphone into the inner cradle making sure the SoundField logo (front of mic) is facing downward. When microphone is fully inserted, tighten the two Allen bolts with the Allen key provided. Make sure the microphone is securely mounted in its inner cradle.
- Page 13 SoundField ST350 User Guide Connect microphone cable ensuring that the red dot on both the microphone and cable connector are lined up. Insert the microphone cable into the groove provided on the underside of the Windshield before replacing end of Windshield.
- Page 14 SoundField ST350 User Guide When the Windjammer completely covers the Windshield, secure its position by tightening the pull-strings and place excess string inside Windjammer. Rycote Assembly Instructions Page 14...
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Page 15: Optional St350 Shockmount
SoundField ST350 User Guide OPTIONAL ST350 SHOCKMOUNT The ST350 shockmount is available as an optional accessory (part no. HW3000) and is ideally suited for vibration isolation in indoor environments. Optional ST350 Shockmount Page 15... -
Page 16: Recording B-Format For Surround Post-Production
User Guide RECORDING B-FORMAT FOR SURROUND POST-PRODUCTION The ST350 shares many of the features of the other SoundField systems, but is unique in that it can record full surround without mains power. The ST350 will run from any DC source between 9V and 18V capable of providing 7W. For example, a 14.4V, 2.4Ah battery will provide approximately 3 hours of operation. -
Page 17: Surround Post-Production: Part One: The Surround Zone Software
Technology to the digital domain. The plug-in is designed to accept the four B-Format signals (W, X, Y & Z) generated by the ST350. All plug-in features can be utilised either retrospectively in the studio after the recording has taken place or ‘live’ and provides the user with the most powerful stereo and surround sound recording/post-production package available. -
Page 18: Surround Post-Production: Part Two: The Sp451 Surround Processor
SURROUND POST-PRODUCTION: PART TWO THE SOUNDFIELD SP451 SURROUND PROCESSOR B-Format playback from Portable Recorder In this configuration the ST350/SP451 combination will deliver six discrete channels of 5.1 surround sound. The SP451 offers a rugged 1U rackmount hardware alternative to the Surround Zone software. -
Page 19: Rechargeable Battery Procedure
SoundField ST350 User Guide RECHARGEABLE BATTERY PROCEDURE FOR ST350 (See Accessories on page 25, part no. ST350/BATT-KIT) CHARGING INSTRUCTIONS 1. Place the battery in the correct direction and make sure that the battery is fitted tightly into the charger and the metal points. -
Page 20: Warranty
SUBJECT TO THE LAWS OF ENGLAND. What to do if a fault is found If a fault develops in the unit, notify SoundField Ltd. or their nearest service facility giving full details of the difficulty. On receipt of this information, service or shipping instructions will be forwarded to you. -
Page 21: Shipping And Quality Assurance
SoundField Ltd or their certified representative. Final claims and negotiations with the carrier must be completed by the customer. Applications problems SoundField Ltd. will be happy to answer any applications questions to enhance your use of this equipment. Please address all correspondence to: SoundField Ltd. -
Page 22: 10 Pin Lemo B-Format Output Wiring Details
SoundField ST350 User Guide 10 PIN LEMO B-FORMAT OUTPUT WIRING DETAILS B-Format output on 10 pin Lemo Pin 1 W (+) Pin 2 W (-) Pin 3 X (+) Pin 4 X (-) Pin 5 Y (+) Pin 6 Y (-) - Page 23 SoundField ST350 User Guide 12 PIN CONNECTOR WIRING DETAILS FOR MIC CABLES 12 Pin Male 12 Pin Female Pin 1 LB (+) Pin 1 Pin 2 LB (-) Pin 2 Pin 3 RB (+) Pin 3 Pin 4 RB (-)
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Page 24: Technical Specifications
XLR connectors (Pin 1 = ground, Pin 2 = + (positive) and Pin3 = - (negative) If the ST350 is to be connected to unbalanced inputs it will be necessary to bridge Pin 1 to Pin 3. Output impedance -... -
Page 25: Accessories
ST350 10 Metre Microphone Cable - Lemo Connectors NN3002 ST350 20 Metre Microphone Cable - Lemo Connectors NN3003 ST350 50 Metre Microphone Cable on Drum - Lemo Connectors NN3004 ST350 100 Metre Microphone Cable on Drum - Lemo Connectors NN3005... -
Page 26: Accessories
SoundField ST350 User Guide ST350 Accessories Part No. Rycote Standard Rycote Pistol Grip with Suspension 430-385 440-183 ST350 Mic Inner Cradle to fit 430-385 140mm diameter Windshield 430-384 Rycote Anti-vibration Mic Cable NN9203 Rycote Windjammer 430-398 Optional Accessory: High Wind Cover... - Page 27 SoundField ST350 User Guide Notes...
- Page 28 SoundField ST350 User Guide Notes...
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