Unobtrusive and easy immersive sound recording

• Pristine audio quality
  
• Mics selected for sensitivity within ±1.5 dB
  
• Inconspicuous mic placement
  
• Lightweight and flexible headset
  
• Flexible adapter system fits most professional wireless systems
  

The 4560 CORE Binaural Headset Microphone is, in its essence, a pair of 4060 CORE Miniature Omnidirectional Microphones that are mounted on two earhooks (as known from the 4266 Flex type of headset). The microphones are a stereo pair; two handpicked 4060s, selected on sensitivity within ±1.5 dB. The actual headset is ergonomically designed to fit comfortably and easily. It adjusts to fit any ear size and head shape while at the same time it mounts securely and is hardly visible. Foam windscreens are supplied with the microphones to secure the position in the ear and to offer some damping of wind noise. 

Sound bites from the play: Good for Nothing

This play was developed by students of the Danish National School of Performing Arts. Nanna-Karina Schleimann created sound design and musical compositions.  

“GFN Alex”: One actor is talking; another actor is listening (wearing the binaural microphones). During this scene they both put their heads into a cardboard box. The audience now experiences being in that box as well.

The 4060 CORE Miniature Omnidirectional Microphones in this headset exhibit an exceptionally accurate omnidirectional pattern and therefore do not need to be aimed directly at the sound source to achieve quality pickup. This pattern also makes it less sensitive to handling noise as well as pop and wind noise. These 4060s  handle sound pressure levels up to 134 dB before clipping occurs. This mic is well suited for applications where the sound source is more remote or damped and you need to have a good balance signal versus noise.

Binaural recording is a technique that uses two microphones to create an immersive 3D stereo sound experience for the listener. When correctly accomplished, these recordings allow the listener to hear sounds like they are actually in the same position as the person who did the actual recording.

Binaural recordings differ from more well-known stereo techniques because binaural uses two omnidirectional mics positioned close together (as if in a listeners ears) to replicate the sound pick up of the human ear as close as possible. Stereo on the other hand, use cardioid microphones with a larger space between them.

Online media – including Facebook, Google and others who are making an effort to create more appealing products, including immersive sound could benefit from binaural recording. Film recordists are using binaural techniques to gather content they can use for atmospheric sounds. In addition, podcasts using the binaural technique can provide content that is much more immersive and alive compared to traditional techniques.

Getting the perfect fit

The two 4060 Omnidirectional Minature Mics are mounted on a flexible headset, which is ergonomically designed to fit comfortably. The headset adjusts easily to fit any ear size as well as head shape.

Adjusting frame size

Before adjusting the frame size, you need to loosen the braided sleeving covering the cable. Remove the clothing clip, grab the bottom of the sleeving and pull it gently upwards, smoothing it up the entire length of the cable to make it loose at the top.

To increase the frame size, hold the cable and frame behind the earhooks and slowly pull the earhooks away from each other to the desired size.

To decrease the frame size, hold the coils on the headset frame and slowly pull the coils away from each other to the desired size.

After making the frame adjustments, starting from the top, smooth the entire sleeving back down the cable. Replace the clothing clip.

Mounting on the head

Place the microphones gently in your ear canals. They should not be pressed tightly into the ears because this might affect the sound. Make sure the earhooks sit comfortably and securely around the ears.

Adjusting the cable

To make sure the microphones stay in place, use the clothing clip. This relieves the weight of the cable on the headset. Make a little loop with the cable so there is enough slack to turn your head from side to side.

Specifications

• Directional pattern Omnidirectional
  
• Principle of operation Pressure
  
• Cartridge type Pre-polarized condenser
  
• Frequency response 20 Hz - 20 kHz
  
• Effective frequency range ±2 dB Soft boost grid: 20 Hz - 20 kHz, 3 dB soft boost at 8 - 20 kHz. High boost grid: 20 Hz - 20 kHz, 10 dB boost at 12 kHz
  
• Sensitivity, nominal, ±3 dB at 1 kHz 20 mV/Pa; -34 dB re. 1 V/Pa
  
• Equivalent noise level, A-weighted Typ. 23 dB(A) re. 20 µPa (max. 26 dB(A))
  
• Equivalent noise level, ITU-R BS.468-4 Typ. 35 dB (max. 38 dB)
  
• Distortion, THD < 1% - Legacy 120 dB SPL RMS, 123 dB SPL peak
  
• Distortion, THD < 1% - CORE 126 dB SPL RMS, 129 dB SPL peak
  
• Dynamic range - Legacy Typ. 100 dB
  
• Dynamic range - CORE Typ. 106 dB
  
• Max. SPL, THD 10% 134 dB SPL peak
  
• Rated output impedance 30 - 40 Ω
  
• Cable drive capability Up to 300 m (984 ft) with DAD6001-BC XLR Adapter
  
• Power supply (for full performance) For wireless systems: Min. 5 V - max. 10 V through DPA adapter
  
• With DAD6001-BC: P48 (Phantom Power). Will work from 12 V
  
• Current consumption Typ. 1.5 mA (microphone). 3.5 mA with DAD6001-BC XLR Adapter
  
• Connector MicroDot, TA4F Mini-XLR, 3-pin LEMO, Mini-Jack
  
• Color Black
  
• Weight 7.5 g (0.26 oz) incl. Cable and MicroDot connector
  
• Microphone diameter 5.4 mm (0.21 in)
  
• Microphone length 12.7 mm (0.5 in)
  
• Cable length 1.8 m (5.9 ft)
  
• Polarity Positively increasing sound pressure produces positive going voltage on MicroDot pin
  
• Temperature range -40°C to 45°C (-40°F to 113°F)
  
• Relative humidity (RH) Up to 90%
  
• Sensitivity selection tolerance (at 1 kHz) ±1.5 dB