Binaural Microphones

A binaural stereo microphone* is a specialized recording device that emulates the human auditory system by incorporating two microphones, usually housed within a replica of human ears or a dummy head. This setup is designed to capture audio in a way that reflects the natural listening process, taking advantage of the shape of the ears and head-related transfer function (HRTF) to create an immersive, three-dimensional listening experience. When binaural recordings are played back through headphones, the listener experiences an authentic and realistic spatial audio sensation, as if they were physically present in the recorded environment. The binaural effect is achieved through the distinctive shape of human ears and the brain’s processing of subtle differences in the timing and intensity of sound reaching each ear. For an optimal experience, it is recommended to listen to binaural recordings through headphones, as the spatial audio effect may be diminished when played through speakers.

*The term binaural in binaural microphone refers to the method of recording sound using two microphones, arranged to create a 3D stereo sound sensation. The word stereo is included in the name because binaural recordings are a type of stereo recording that uses two different audio channels to create a spatial audio effect.

Types of binaural microphones

There are several types of binaural microphones, each with its own unique characteristics and applications. Some of the common types include:

In-Ear Binaural Microphones: These are designed to be placed inside the ears, allowing for a highly immersive and realistic binaural recording experience.

Dummy Head Binaural Microphones: This type uses a model of a human head with microphones placed in the ear positions.

Wireless Binaural Microphones: Some binaural microphones come with wireless capabilities, such as Bluetooth-enabled headsets for replaying recordings.

Binaural Microphones

Neuman KU 100

The KU 100 by Neumman is a dummy head microphone meticulously designed to deliver an immersive binaural listening experience through headphones. By employing two channels, it skillfully constructs a realistic, three-dimensional spatial representation, making it applicable in various environments such as classical recordings, radio productions, and industrial applications. Renowned for its minimal self-noise, its ability to handle high sound pressure levels and the provision of three low cut options, the microphone features a balanced XLR 5 stereo output and unbalanced BNC outputs. Users have the flexibility to power it via P48 phantom power, internal battery, or an external power supply. Mountable on standard microphone stands and compatible with speakers, the KU 100 emerges as a versatile tool for creating 3D audio experiences.

Brüel & Kjær Type 4101-B

The Brüel & Kjær type 4101-B binaural microphone is designed specifically for in-ear sound recording, particularly in situations where testing on a human subject is preferable. This microphone set is lightweight and flexible and includes miniature condenser microphones housed in moisture-resistant silicone rubber ears. This design ensures comfortable use for the test subject, making it suitable for various scenarios. The Type 4101-B is designed for binaural recordings that need to capture the influence of the test person’s head and torso. It serves as a valuable tool for comparing noise, vibration and harshness (NVH) measurements, as well as for performing accurate testing on smart devices and headphones.

Brüel & Kjær Type 4965-B

The Brüel & Kjær type 4965-B is a binaural microphone set that includes the Type 4101-B internal binaural microphone and a pair of Bluetooth bone conduction headphones. The Type 4101-B microphone is designed for binaural sound recordings where testing on a human subject is preferred, and is lightweight and compact, with two miniature condenser microphones mounted on moisture-resistant silicone rubber ears. The Type 4965-B is designed for binaural recordings close to the entrance of the human ear canal and provides a complete listening and playback solution for use with Brüel & Kjær’s Sonoscout NVH. The binaural microphone set is calibrated with the Type 4128 Head and Torso Simulator, which also has an open ear canal, and the microphones incorporate Transducer Electronic Data Sheets (TEDS) for easy setup and foolproof operation.

Sound Professionals SP-TFB-2

SP-TFB-2 designed by Sound Professionals stands out as an in-ear binaural microphone meticulously designed to offer ultra-low noise, high sensitivity, and the ability to handle high peak sound pressure levels (SPL). Located next to the ear canal within the pinna, these microphones capture exceptionally realistic recordings from the user’s perspective. The microphone set is equipped with a gold-plated 1/8″ (3.5 mm) stereo mini-jack, allowing direct compatibility with any plug-in-power recorder or drum module. Featured an omnidirectional pickup pattern, a frequency range spanning 20 Hz to 20,000 Hz, and self-noise of 19 dBA.

Core Sound Binaural microphone

The Core Sound Binaural Microphone Set stands out as a cost-effective yet high-quality option, with modified microphones and a non-switchable drum box. This complete set includes all cables and fixed clips necessary for comfortable use. The microphones themselves are discrete, stealth-mounted units with tailored and modified capsules, offering superior sound quality and minimized distortion.

Built around miniature omnidirectional microphones from Matsushita (Panasonic), these units undergo electrical and mechanical modifications to achieve a more linear sound frequency response.

MM-BSM-7 (Panasonic 61 Series) Bianural Stereo Mics

Microphone Madness offers the MM-BSM-7 (Panasonic Series 61) Binaural Stereo Microphones, which feature omnidirectional microphones that are smaller than the eraser head of a pencil. Designed to capture high-quality, immersive binaural audio, these microphones are versatile in a variety of applications where authentic, spatial sound reproduction is essential.

Free Space Pro II Binaural Microphone

The 3DIO Free Space Pro II Binaural Microphone by 3Dio stands out as a top-tier professional-grade device engineered to capture sound in a manner reflective of natural human hearing. This microphone incorporates two high-sensitivity DPA 4060 CORE capsules, positioned within each ear, resulting in an exceptionally open and dynamic sound profile, particularly evident during delicate recordings. The device provides an immersive binaural soundscape characterized by rich, silky-smooth sound, pristine highs, and resonant lows.

Designed for a wide range of professionals, including recording studios, content creators, filmmakers, field recordists, and sound designers, the Free Space Pro II is renowned for its exceptional sensitivity and natural binaural recording capabilities. Powered by a pre-installed 9V battery, it features a 3.5mm (1/8″) stereo output jack, offering convenience in various recording environments. Its reputation for capturing immersive audio makes it an ideal choice for those seeking high-quality, true-to-life binaural recordings.

Free Space Binaural Microphone

The Free Space binaural microphone by 3diosound is a specialized stereo microphone designed to capture sound in a manner mirroring human ear perception. It delivers a warm and robust response in the low to mid frequencies, resulting in a natural three-dimensional sound that immerses the listener in the recording space. Featuring two human-shaped prosthetic ears with embedded microphone capsules in each ear canal, the microphone outputs through a 3.5mm (1/8″) stereo output jack.

Versatile in its applications, the Free Space binaural microphone finds suitability in various fields such as movies, games, music, ASMR, and virtual reality. Its ability to replicate the human auditory experience makes it a valuable tool for creating immersive and authentic audio content across a range of media.

MM-BSM-6/5 "Micro" Binaural Stereo Microphones w/ "Shure" Premium Clip-On Clips

The MM-BSM-6/5 “Micro” Binaural Stereo Microphones by MMaudio with “Shure” Premium Clip-On Clips are small-sized omnidirectional microphones that deliver naturally clear sound with deep bass, smooth midrange, and clean high range.

Omni Pro Binaural Microphone

The Omni Pro Binaural Microphone by 3Dio, though now discontinued, stands as a professional-grade binaural microphone featuring 8 DPA 4060 high-sensitivity capsules. Purposefully designed to offer a professional binaural perspective in any audio environment, this microphone captures stereo binaural audio from four different directions (0, 90, 180, and 270 degrees). Its unique capabilities make it particularly well-suited for enhancing immersive binaural audio in 360° recordings.

The DPA 4060 capsules contribute to an exceptionally low noise floor, resulting in an open and dynamic binaural sound. This characteristic makes the Omni Pro microphone an excellent choice for professional applications such as 360° camera recordings and binaural virtual reality experiences. Furthermore, it can be effectively utilized to provide binaural localization and orientation freedom in 360° video and virtual reality applications. Despite its discontinuation, the Omni Pro remains a valuable tool for those seeking high-quality binaural audio solutions in various professional settings.

SR3D binaural microphone

The SR3D Binaural Microphone is a high-quality microphone meticulously designed specifically for capturing immersive 3D audio, with a focus on ASMR (Autonomous Sensory Meridian Response) content and field recording. This microphone incorporates two premium microphones strategically placed to emulate the natural hearing of the human ear, resulting in a realistic and immersive 3D audio experience. Recognized for its exceptional detail and ability to replicate sound perceived by human ears in real-life scenarios, the SR3D binaural microphone has gained popularity among ASMR artists, field recorders, and audio enthusiasts.

SR3D® Cubes

The Twirling 720 Lite by Twirling is a VR audio microphone designed for mobile phones that offers the ability to capture 360-degree ambisonic audio. It uses multiple built-in microphones to focus on the intended direction of recording, minimizing sound from other directions, making it suitable for capturing single sound sources such as one-on-one conversations. The product is part of the TwirlingVR line, which includes the Twirling 720, a VR audio recorder with 4 microphone channels for 360-degree ambisonic recording. The Twirling720 series aims to provide high-quality VR audio recording solutions, combining microphones and recording devices into one integrated system.

SR3D dummy head microphone MKIII

The SR3D Dummy Head MKIII microphone from SR3D company stands out as a binaural microphone meticulously designed to capture 3D audio with an exceptional level of realism. Constructed from a hand-modified polystyrene head, the microphone incorporates additional elements to enhance the 3D binaural effect.

This microphone offers multiple connection options, with a phantom power (XLR) option and a USB option. Renowned for its sleek, minimalist design, cutting-edge technology, and crystal-clear sound quality. It is made to measure and has a delivery time of up to 7 days.

SR3D Binaural Jecklin disk

The SR3D Binaural Jecklin Disk stands out as a distinctive capture device designed for live performances, events and field recordings, aiming to deliver a truly realistic and immersive 3D audio experience. This 30cm disc, adorned with foam on both sides, is lightweight and approximately 57mm thick. Its main function is to capture the artists and the audience in a three-dimensional space, which makes it versatile for various scenarios. Additionally, it can be used for field recording in calm weather, with the option of using fluffies in windy conditions.

CS-10EM Roland

Roland‘s CS-10EM is a 2-in-1 device that combines internal monitoring with binaural recording, making it ideal for field recording and other applications. This product enhances the convenience and enjoyment of field recording and serves as an excellent companion for capturing high-quality audio. It allows users to create binaural recordings and monitor them simultaneously, offering a unique and versatile solution for professionals and audio enthusiasts alike. The CS-10EM is designed to provide a seamless experience for those looking to achieve high-quality binaural audio recordings.

OKM II

The Soundman OKM II, produced by the Soundman company, is a distinctive binaural stereo microphone designed for use as a headset. It features omnidirectional stereo electret condenser microphones positioned in the ears, similar to in-ear Walkman headphones. This unique setup contributes to a commendable dynamic range, low noise, and a wide bandwidth.

Included with the OKM II is an A3 power adapter, a compact plastic case providing a higher supply voltage. This results in increased headroom and a broader dynamic range. The A3 also integrates an amplifier to transmit the signal to the line input of a recorder, typically quieter than the microphone input. Fueled by a 6V alkaline battery, the A3 boasts an impressive 100 hours of continuous operation.

SP15C – Binaural USB Mic (USB-C)

The SonicPresence® SP15C (USB-C) is a binaural microphone designed to capture spatial audio on both mobile and desktop devices. Its distinctive supra-aural design places the left and right microphones in front of each ear, allowing you to record a comprehensive 360° audio experience.

With a portable, weatherproof design, the SP15C is versatile and compatible with more than 25 audio and video recording applications, allowing users to record at up to 24-bit/96kHz quality.

i3DMic

The Mic W company’s i3DMicTM binaural recording microphone is designed specifically for 3D (binaural) audio recording solutions. The i3DMicTM Pro750 integrates rear electret stereo microphones combined with high-quality headphones, offering a combined binaural recording and headphone monitoring experience. The i3DMic Pro750 is an ideal alternative to traditional Dummy Head setups. Its user-friendly design makes it much easier to locate the sweet spot for both indoor and outdoor 3D recordings.

4560 CORE Binaural Headset Microphone

The 4560 CORE Binaural Headset Microphone by dpa microphones is a specialized audio capture device designed for immersive and spatial recording. It consists of two 4060 CORE Miniature Omnidirectional Microphones mounted on ear hooks, allowing for discreet and high-quality audio capture. This moisture-resistant headset microphone is well-suited for applications where the sound source is distant or subdued, providing a balanced signal-to-noise ratio. The microphone is lightweight, flexible, and offers pristine audio quality, making it ideal for various uses such as 3D sound recording, field recording, and immersive audio applications. The 4560 CORE Binaural Headset Microphone is a versatile and high-fidelity solution for capturing realistic and immersive audio experiences.

HSU – Artificial head series for binaural sound recordings

The HSU Artificial Head Series by HEAD acoustics is a set of artificial heads designed for binaural sound recordings. These artificial heads accurately capture and reproduce all relevant sound components, making them indispensable tools for binaural sound recordings and measurements. The HSU artificial head can be combined with a hand-held mobile recording and playback system for binaural recordings on the go, offering a convenient solution for capturing realistic and immersive audio experiences. The artificial heads are designed to capture sounds true to reality, providing a high-fidelity recording solution for various applications, including music recording, speech playback testing, and laboratory voice and audio quality assessments.

3D audio recording wireless headphones

3D audio recording wireless headphones with binaural mics by Hooke audio are innovative devices that allow users to capture immersive, lifelike audio experiences. These headphones are equipped with binaural microphones, which are designed to replicate the structure of human ears, enabling the capture of audio with a high degree of accuracy. The Hooke Verse Bluetooth Headphones, for example, enable users to record and playback binaural sound wirelessly via Bluetooth using the company’s 3D Audio app. Similarly, the Sennheiser Ambeo Smart Headset is designed to capture high-quality 3D audio for mobile recordings, providing an all-in-one solution for binaural recording and playback. These devices are ideal for a wide range of applications, including music recording, ASMR, field recording, and immersive audio experiences. The use of binaural recording systems allows for the capture of sounds true to reality, providing users with a powerful tool for creating realistic and immersive audio content.