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Soundfield DSF-1 User Manual

Performance microphone system
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SOUNDFIELD
DSF-1 Performance
Microphone System
User Guide
Version 1.0
System comprises:
• DSF-1 1U Digital Microphone Controller
• DSF-1 Microphone in Leather Case
• 20m SoundField Microphone Cable
• Shockmount
• Mains Power Cable
• Owners Manual

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Summary of Contents for Soundfield DSF-1

  • Page 1 SOUNDFIELD DSF-1 Performance Microphone System User Guide Version 1.0 System comprises: • DSF-1 1U Digital Microphone Controller • DSF-1 Microphone in Leather Case • 20m SoundField Microphone Cable • Shockmount • Mains Power Cable • Owners Manual...

  • Page 2: Table Of Contents

    How Does it Work? - Getting Started Controls 9-13 Post Production Surround Sound: Using the DSF-1 with SoundField ‘Surround Zone’ Software Specification - Warranty Shipping and Quality Assurance 12 Pin Connector Wiring Details for SoundField Microphone Cables Table of Contents...

  • Page 3: Safety Information

    SoundField DSF-1 User Guide SAFETY INFORMATION • This equipment must be EARTHED. • Only suitably trained personnel should service this equipment. • Please read and take note of all warning and informative labels. • Before starting any servicing operation, this equipment must be isolated from the AC supply (mains) by removing the incoming IEC mains connector.

  • Page 4: Introduction

    XLR connectors. The DSF-1 outputs digital stereo Left/Right, stereo M/S and four channels of digital SoundField B-Format called W, X, Y and Z which is the surround sound information. A single lightweight multiway cable is used to connect the microphone to the DSF-1 controller which as well as carrying the individual capsule signals also supplies the necessary power to the microphone.

  • Page 5: How Does It Work

    The four outputs from the capsules of SoundField microphones (called SoundField A-Format audio signals) are converted by the DSF-1 processor into four components known as SoundField B-Format. These convey all of the information of the entire sound field, and are the three directional vectors - Left/Right, Front/Rear and Up/Down - and absolute pressure.
  • Page 6 By recording the four B-Format outputs from the DSF-1 controller these components can be preserved for subsequent production and processing of current and all future surround formats.

  • Page 7: Getting Started

    The DSF-1 system does not require Phantom Power (48V) if it is connected to a mixing console. Please ensure that the Phantom Power on the mixer input channels is turned off.
  • Page 8 KEYS TO PROPER PLACEMENT OF SOUNDFIELD MICROPHONES Getting the mic in the right place is the first step in making a good recording. With SoundField microphones, it is too easy to be lulled into complacency by the excellent stereo and surround sound pick-up they provide.

  • Page 9: Controls

    Up/Down height information being reversed. When making B-Format recordings for later surround or stereo post production with the SoundField ‘Surround Zone’ software, it is important to document the 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.
  • Page 10 SoundField DSF-1 User Guide Up/Down height information being reversed. It is important to document the status of the Invert switch when making B-Format recordings for later post production. 5. Bargraph Metering The four bargraph meters are switchable to monitor either the four B-Format signals (W, X, Y and Z) or the stereo Left/Right and Mid-Side.
  • Page 11 SoundField DSF-1 User Guide STEREO CONTROL SECTION The controls in the Stereo Section have no effect on the four B-Format output signals. 1. Hi Pass A switchable 40Hz or 80Hz high pass filter is available to attenuate unwanted low frequency rumble or wind noise.
  • Page 12 External Sample Rates In addition to internal sample rates the DSF-1 also provides the option to synchronise to an external word clock by selecting the EXT LED. When selected the incoming word clock will be measured and if one of the above six sample rates is detected the measured sample rate will be displayed as shown in the table above.
  • Page 13 88.2K, 96K, 176.4K and 192K. The DSF-1 front panel display indicates when external clock is selected. 6. MIC INPUT - Lemo 12 pin female panel mount connector. The DSF-1 system will drive up to 250m of SoundField mic cable with no loss of quality or signal level.

  • Page 14: Post Production Surround Sound: Using The Dsf-1 With Soundfield 'Surround Zone' Software

    The SoundField Surround Zone software plug-in is designed to accept the four B-Format signals (W, X, Y & Z) generated by the DSF-1. 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 15: Specification

    SoundField DSF-1 User Guide SPECIFICATION Audio Specification - Control Unit Analogue Inputs: maximum input level 26.5dBu Analogue Limiter: when enabled threshold set to 24.5dBu Analogue Bandwidth: 10Hz – 40KHz +/- 0.1dB Analogue to Digital Converter: 2 x CS5381 Supported Sample rates: 44.1K, 48K, 88.2K, 96K, 176.4K and 192K Mic Pre/Analogue to Digital Converter performance: All performance specifications are rms, un-weighted and band limited 20Hz –...

  • Page 16: Warranty

    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. No equipment should be returned under the warranty without prior consent from SoundField Ltd.

  • Page 17: Shipping And Quality Assurance

    If the unit is returned the original container should be used. If this is not possible, a new container can be obtained from SoundField Ltd.; please specify the model number when requesting a new container. If the specially designed container is not used ensure that a suitable rigid container of adequate size is used, wrap the instrument in paper and surround it with a good thickness of shock absorbing material.

  • Page 18: Pin Connector Wiring Details For Soundfield Microphone Cables

    SoundField DSF-1 User Guide 12 PIN CONNECTOR WIRING DETAILS FOR MICROPHONE 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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