Sonorous Objects In-Ear Binaural Stereo Microphone

Capture the rich tapestry of sounds within the environment around you with the Sonorous Objects In-Ear Binaural Microphones. Recorded sounds produce a stunningly realistic first-person 3D sound field; with precise positioning and movement of both the wearer as well as the subjects being recorded. Recordings feature a realistic layered spatial representation of the sound as your ears perceive it. 

The microphones are worn in your ears, just as you would wear ear buds or AirPods. The microphones replicate the way that you hear due to the physical separation that your head provides between the microphones, as well as the unique shape of your ears.

Offered in EM272 and EM258 variants, our in-ear mics have the same highly sensitive, low noise, and detailed nuanced sound as our other microphones. Our in-ear mics, together with the array on either side of your head, provide a breathtakingly realistic spatial image and deep soundstage. The SO In-Ear Microphones utilize Primo's highly regarded EM272 / EM258 capsule, favorites among field recordists, sound designers, location sound, and artists working with sound. The Primo EM272 and EM258 capsules excel at capturing textural nuances, dynamic transients and reverberation/spatial information. When placed in your ears, the microphones provide precise imaging and a stunning sense of realism.

Included with the microphones are a variety of ear tip sizes and shapes. We designed the mics to be compatible with common third-party ear tips, allowing you to use your favorite ear tips with your microphones. The microphones design allows for the addition of foam windscreens (included), or furry windscreens to aid in reducing wind noise. The microphones are housed in a plastic enclosure produced and fabricated here in NYC. We use high quality hand braided Mogami shielded cable that terminates in a Neutrik Gold Right Angle 3.5mm plug.  Overall length from microphone to termination is 4 1/2 ft.

The SO In-Ear Binaural Microphones can be used with any USB-C equipped phone or computer. Use the SO USB-C Audio Interface for 3.5mm Cables by Saramonic to directly connect your SO In-Ear Binaural Microphones!

Sonorous Objects In-Ear Microphones are fabricated in-house and is assembled by hand in NYC

What's Included

(1) In Ear Stereo Matched Microphone Set

(2) Mini Foam Windscreen

(2) Cable Clip

Interchangeable Ear Tips : 

(2) Single Flange Small Rubber Ear Tip

(2) Single Flange Medium Rubber Ear Tip

(2) Single Flange Large Rubber Ear Tip

(2) Triple Flange Medium Rubber Ear Tip

Features

- Exceptional low self noise and high sensitivity

- Compatible with the recorder already in your pocket. Microphones can connect directly to phone! No recorder needed if using SO USB-C Audio Interface for 3.5mm Cables by Saramonic

- Community trusted EM272 & EM258 capsules. The Primo EM272 and EM258 capsules excel at capturing textural nuances, dynamic transients and reverberation/spatial information. Wide dynamic range and frequency response for accurate sound reproduction across the audio spectrum

- From your perspective. Capture a stunningly realistic first-person 3D immersive sound field in a small discreet in-ear form factor

- Replaceable Ear Tips & Foams. Multiple (S,M,L Single Flange + Triple Flange Medium) Ear Tips Included

- Industry Standard High Quality Components and Parts. Neutrik Gold Pin Connectors, hand braided Mogami Shielded Cable

- Fabricated in house by hand in NYC.

In-Ear Binaural Stereo SO.1 EM272 Specifications

Capsule | Primo EM272

Polar Pattern | Omnidirectional

Frequency Response | 20hz - 20khz. (Spectrograms show extended range)

Signal to Noise Ratio | 80dB 

Self Noise | 14dBA

Maximum Input SPL | 122dB

Dynamic Range | 108dB

Sensitivity | -28dB (+/- 3.0dB @ 1kHz) Stereo Pairs are matched within 0.3dB @ 1kHz

Operating Voltage | 3.5mm Plug In Power

Enclosure | Black PLA Plastic 

Dimensions  | 20mm Length x  11mm Diameter

Operating Temperature Range | -20°C ~ +60°C

Storage Temperature Range | -40°C ~ +85°C

Cable | Shielded, Mogami, 18" from microphone to splitter, 3 ft length braided Mogami cable terminated with a Neutrik Gold Right Angle 3.5mm TRS Plug. 4.5 ft total length.

SO In-Ear Binaural Stereo SO.1 Microphone Product Manual PDF

Frequency Response

In-Ear Binaural Stereo SO.4 EM258 Specifications

Capsule | Primo EM258

Polar Pattern | Omnidirectional

Frequency Response | 20 Hz - 70 kHz

Signal to Noise Ratio | 74dB 

Self Noise | 20dBA

Maximum Input SPL | 115dB

Dynamic Range | 95dB

Sensitivity | -32dB (+/- 3.0dB @ 1kHz) Stereo Pairs are matched within 0.3dB @ 1kHz

Operating Voltage | 3.5mm Plug In Power

Enclosure | Black PLA Plastic

Dimensions  | 20mm Length x  11mm Diameter

Operating Temperature Range | -20°C ~ +60°C 

Storage Temperature Range | -40°C ~ +85°C

Cable | Shielded, Mogami, 18" from microphone to splitter, 3 ft length braided Mogami cable terminated with a Neutrik Gold Right Angle 3.5mm TRS Plug. 4.5 ft total length.

SO In-Ear Binaural Stereo SO.4 Microphone Product Manual PDF

Frequency Response

Audio Recordings