DSF-3 MKII Digital Surround Processor User Guide Version 1.
SoundField DSF-3 User Guide CONTENTS: Safety Information - - - - - - - - - - 3 Controls - - - - - - - - - - 4-10 Interfacing the DSF-3 with the DSF-2 Digital Broadcast Microphone System For Live Surround Broadcast - - - - - 11 Audio Specification - - - - - - - - - - 12 Warranty - - - - - - - - - 13 Contents - - - Page 2
SoundField DSF-3 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. • Fuses should only be replaced with ones of the same type and rating as that indicated.
SoundField DSF-3 User Guide CONTROLS Input Page 1. Input Trim The inputs can be level trimmed by +/- 10dB in 1dB steps. To change the input trim press the “Trim” button - this will change the display to show the trim level in the middle of the screen – and use the rotary controller to alter the level. To return back to the main screen either press the “Trim” button again or wait for the gain screen to automatically time out. 2.
SoundField DSF-3 User Guide 3. Invert The INVERT mode maintains the correct three-dimensional perspective in both surround and stereo when the microphone is suspended upside down above the sound source ( ). Not selecting this mode with the mic suspended will result in the Left/Right width information and 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.
SoundField DSF-3 User Guide Orientation Page 1. Rotate Rotates the microphone’s pick up through a full horizontal 360º in 10º steps and redefines the front centre of the stereo and surround image. To change the rotation press the “Rotate” button - this will change the display to show the angle of rotation in the middle of the screen – and use the rotary controller to alter the rotation.
SoundField DSF-3 User Guide Surround Output Page The Surround Output Page shows the surround sound output bargraphs and allows you to control the parameters of the available output pairs. In the case of 5.1 the output pairs are L/R, C. LFE and LS/RS. The L/R and LS/RS output Page: 1. L/R, LS/RS Level The L/R, LS/RS output pairs can be level trimmed by +/- 10dB in 1dB steps.
SoundField DSF-3 User Guide 4. Delay A variable delay control is available for the LS/RS pair and can be varied by upto 40ms in 1ms steps. To change the delay press the “Delay” button and use the rotary controller to alter the delay. 5. Low Pass Filter A low pass filter is provided with a cut-off frequency ranging from 20KHz to50Hz. To change the cut off frequency press the “LPF” button and use the rotary controller to alter the frequency. 6.
SoundField DSF-3 User Guide 3. Delay A variable delay control is available for the LS/RS pair and can be varied by upto 40ms in 1ms steps. To change the delay press the “Delay” button and use the rotary controller to alter the delay. 4. Low Pass Filter A low pass filter is provided with a cut-off frequency ranging from 20KHz to50Hz. To change the cut off frequency press the “LPF” button and use the rotary controller to alter the frequency. 5.
SoundField DSF-3 User Guide REAR PANEL 1. MAINS POWER INLETS - fully redundant power supply inlets. 2. Ethernet Port – for future expansion 3. Digital Outputs – 5 x 75Ω Coax (AES3id) digital audio outputs Currently supporting 5.1 output with support for 6.1, 7.1, 5.1.2, 5.1.4, 7.1.2 and to follow) 5.1 Output Mapping AES 1/2 – not used AES 3/4 – L/R AES 5/6 – C/LFE AES 7/8 – LS/RS AES 9/10 – not use 4. WORD CLOCK INPUT/OUTPUT - BNC 75Ω, 48kHz only 5.
SoundField DSF-3 User Guide INTERFACING THE DSF-3 WITH THE DSF-2 DIGITAL BROADCAST MICROPHONE SYSTEM FOR LIVE SURROUND BROADCAST In this configuration the DSF-2/DSF-3 combination will deliver six discrete channels of digital 5.1 surround for High Definition broadcast. The DSF-3 can also output simultaneous digital stereo for Standard Definition and radio.
SoundField DSF-3 User Guide AUDIO SPECIFICATION Digital Inputs Supported Input Sample Rates Input Bit Rates Sample Rate Converter 75Ω Coax (AES3id) 48kHz Supported 24 bit AD1896 (128dB SNR) Digital Outputs Output Sample Rate Output Bit Rate 75Ω Coax (AES3id) 48kHz 24 bit Bandwidth 20Hz - 24kHz THD+N (-1dBfs, 1kHz) <0.00005% on <-130dB MAINS REQUIREMENTS AC Input 2 x 100V - 240V AC 50/60Hz Power Consumption <20W Case Size 482mm (w) x 44mm (h) x 295mm (d) Weight 2.
SoundField DSF-3 User Guide WARRANTY Limited Liability SoundField Ltd., herein after known as the manufacturer, guarantees this equipment from defects in material and workmanship under normal use and service for a period of one year. This guarantee extends to the original purchaser only and does not apply to fuses or any product or parts subjected to misuse, neglect, accident or abnormal conditions of operation.
