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Sony ECM-B1M Camera-Mount Digital Shotgun Microphone for Sony Cameras

BH #SOECMB1M • MFR #ECM-B1M
Sony ECM-B1M Camera-Mount Digital Shotgun Microphone for Sony Cameras
Key Features
  • Designed for Sony a7R IV
  • Mounts via Sony Multi Interface Shoe
  • 3 x Selectable Directivity Patterns
  • Selectable Digital/Analog Output
The Sony ECM-B1M is an ultra-compact camera-mount digital shotgun microphone designed for mobile video creators working with Sony cameras equipped with the Multi Interface Shoe. Released alongside the a7R IV, which benefits from its built-in Digital Audio Interface, the ECM-B1M is able to produce its best quality by delivering a digital audio stream directly to the camera through the Multi Interface Shoe. Other Sony cameras with the standard Multi Interface Shoe can still make use of the microphone as there is a selectable digital/analog output.
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Sony ECM-B1M Overview

  • 1Description
  • 2Compatibility
  • 3Three Directivity Modes
  • 4Super Directivity in a Compact Mic
  • 5Digital Sound with Low Noise
  • 6Effective Controls for Clear Sound
  • 7Mechanical Noise Suppression
  • 8Cable-Free Connection

The Sony ECM-B1M is an ultra-compact camera-mount digital shotgun microphone designed for mobile video creators working with Sony cameras equipped with the Multi Interface Shoe. Released alongside the a7R IV, which benefits from its built-in Digital Audio Interface, the ECM-B1M is able to produce its best quality by delivering a digital audio stream directly to the camera through the Multi Interface Shoe. Other Sony cameras with the standard Multi Interface Shoe can still make use of the microphone as there is a selectable digital/analog output.

The ECM-B1M is equipped with eight high-performance mic capsules and advanced digital signal processing, providing three selectable directivity patterns for a wide range of shooting and recording situations. Plug-and-play operation makes the microphone easy to use right out of the box—you can immediately start recording your YouTube videos, Facebook Live streams, and interviews, at home, in the studio, or on the go.

Compatibility
Digital Audio
Sony Alpha a7R IV

Analog Audio
Sony cameras equipped with Multi Interface Shoe
Three Directivity Modes
Advanced digital signal processing makes it possible to offer three switchable directivity patterns: supercardioid, cardioid, and omnidirectional.
Super Directivity in a Compact Mic
Eight high-performance microphone units work with a beam-forming algorithm to provide extremely sharp directivity that effectively rejects off-axis sound. All of this is achieved in a remarkably compact microphone that is only 3.91" in length.
Digital Sound with Low Noise
When connected via the Multi Interface shoe of a compatible camera that features a built-in digital audio interface, the audio signal is directly transferred to the camera in digital form so that no degradation can occur. A simple switch also provides compatibility with a wide range of cameras using an analog interface.
Effective Controls for Clear Sound
Record level control, analog output for compatibility with a wide range of cameras, and an attenuator that makes it easy to set optimum signal levels all add to this microphone's versatility.

A low-cut filter that cuts out subsonic noise is implemented through digital signal processing, maximizing audio quality at the recording stage and thereby reducing the need for complex post processing.

Mechanical Noise Suppression
An advanced shock and vibration suppressing design effectively minimizes low-frequency or handling noise, which can degrade audio quality. The absence of connecting cables also means that no noise can be transmitted to the microphone mechanically via cables and connectors.

A fur windscreen is supplied to help reduce wind noise when shooting outdoors.

Cable-Free Connection
Simply clip the microphone into the Multi Interface Shoe on a compatible camera for direct power and audio connections without the need for extra cables or batteries. Sony's Multi Interface Shoe offers intelligent connectivity and control for a variety of accessories, providing maximum flexibility and mobility.
UPC: 027242916487

Sony ECM-B1M Specs

Key Specs
Element Type
8x Electret Condenser
Polar Pattern
Cardioid, Omnidirectional, Supercardioid
On-Board Controls
Gain/Sensitivity, High-Pass Filter, Pad, Polar Pattern
Frequency Range
40 Hz to 20 kHz
Maximum SPL
120 dB SPL
USB/Digital Output
1x Sony Multi Interface Shoe
Microphone
Primary Applications
ENG (Electronic News Gathering), Audio for Video, Location Sound, Field Recording
Form Factor
Camera-Mount
Intended Sound Sources
Vocals, Speech/Voice-Over, Room Ambiance
Sound Field
Mono
Operating Principle
Pressure Gradient
Pressure Operated
Element Type
8x Electret Condenser
Polar Pattern
Cardioid, Omnidirectional, Supercardioid
Pattern Selection
Switched
Orientation
End Address
Circuitry
Solid-State
Pad
-10 dB
-20 dB
High-Pass Filter
Yes
Tone Adjustment
No
Gain Adjustment
Yes
Indicators
No
On-Board Controls
Gain/Sensitivity, High-Pass Filter, Pad, Polar Pattern
Performance
Frequency Range
40 Hz to 20 kHz
Maximum SPL
120 dB SPL
Sensitivity
-20 dBFS at 1 kHz
Dynamic Range
106 dB
Connectivity
Analog Output
No
USB/Digital Output
1x Sony Multi Interface Shoe
Wireless
No
Digital Audio
Digital Signal Processing
Noise Reduction
OS Compatibility
No
Mobile App Compatible
No
*As of June, 2023: Check with manufacturer for the most up-to-date compatibility
Power
Operating Voltage
Not Specified by Manufacturer
Physical
Color
Black
Mounting
Camera/Shoe-Mount (via Integrated Hardware)
Mounting Thread Size
Included Mount Has No Threading
Included Filters
No
Operating Temperature
32 to 104°F / 0 to 40°C
Storage Temperature
-4 to 131°F / -20 to 55°C
Dimensions
H: 3.22 x W: 1.08 x L: 3.91" / H: 81.8 x W: 27.4 x L: 99.3 mm
Weight
2.8 oz / 79 g
Packaging Info
Package Weight
0.48 lb
Box Dimensions (LxWxH)
5.9 x 5.4 x 2.5"

Sony ECM-B1M Reviews

See any errors on this page? Let us know

How can i use this microphone with the a7s iii, ...

How can i use this microphone with the a7s iii, and be able to have the 4channels (for timecode)
Asked by: Audrey
The microphone is mono, single channel only.
Answered by: daniel
Date published: 2021-02-05

The included deadcat muff is only good enough for ...

The included deadcat muff is only good enough for mild side and back wind. It's inadequate for stronger wind. Does anyone have a recommendation for a more robust wind noise cancellation solution for this for 20-30mph wind hitting the back of it? (Shooting while riding a Segway). Thank you for your help!!!
Asked by: ALLEN ALI
You can try layering a foam windscreen underneath the deadcat and that should provide much better protection from wind noise.
Answered by: Lisa S
Date published: 2023-08-09

Will this ECM B1M mic work with the SONY A9?

Will this ECM B1M mic work with the SONY A9?
Asked by: Kenneth
Yes, they are compatible.
Answered by: John
Date published: 2019-08-13

will it work with bmpcc 4k ?

will it work with bmpcc 4k ?
Asked by: MEME
Unfortunately this only works with Sony cameras. It is not compatible with the Blackmagic Pocket 4k.
Answered by: David
Date published: 2019-07-30

Since you can only use it for Analog Audio in ...

Since you can only use it for Analog Audio in every other model - whats the difference? Will the Audio Quality still be as good as the digital audio?
Asked by: Robbie
thank you for your question. This microphone has digital processing to change the way the microphone picks up audio and connects with a Multi Interface shoe. You will have great sound quality without the hassle of cables to extra components.
Answered by: Anthony
Date published: 2019-12-11

Will it also work with the A7R III?

Will it also work with the A7R III?
Asked by: Yiyun
Hi Yiyun, you can use the shotgun microphone with A7R III by setting the "DIGITAL/ANALOG switch" to "ANALOG".
Answered by: SonyListens
Date published: 2019-12-20

Is this mic compatible with the FX30? The FX30 ...

Is this mic compatible with the FX30? The FX30 page on Sony's website states it has a Multi Interface Shoe yet I saw an answer stating this mic was not compatible with the FX3 which I thought had the same style of Hot shoe. If not compatible are there any Sony shotgun mics that are compatible?
Asked by: Anthony
I reached out to Sony and confirmed that the Sony ECM-B1M Camera-Mount Digital Shotgun Microphone is compatible with both the FX30 and the FX3 Cinema Cameras. The ECM-B1M can be connected directly to the Multi Interface Shoe on both cameras.
Answered by: Lisa S
Date published: 2023-06-11

Is there a way to power this other than through ...

Is there a way to power this other than through the Sony multi interface shoe for use off camera? If not, could an Sony cable such as B&H # VEOCSSM3 be used to place it off camera and still have it work? TIA
Asked by: Jon
Not really the mic was designed for the Sony Multi Interface Shoe. One of the design concepts was to have the mic cable free. So no noise can be transmitted through the cable to the mic.
Answered by: John
Date published: 2019-08-21
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