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
Show More
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

Microphone
Form FactorCamera-Mount
Sound FieldMono
Operating PrinciplePressure Gradient
Pressure Operated
Capsule8 x Electret Condenser
Polar PatternCardioid, Omnidirectional, Supercardioid
Pattern SelectionSwitched
OrientationEnd Address
CircuitrySolid-State
Pad-10 dB
-20 dB
High-Pass FilterYes
Tone AdjustmentNone
Gain AdjustmentYes
IndicatorsNone
On-Board ControlsGain, Polar Pattern, High-Pass Filter, Pad
WindscreenFoam (Included)
Performance
Frequency Range40 Hz to 20 kHz
Maximum SPL120 dB SPL
Sensitivity-20 dBFS at 1 kHz
Dynamic Range106 dB
Equivalent Noise Level14 dB SPL
Connectivity
Output Connectors (Analog)1 x Proprietary
Output Connectors (Digital)1 x Micro-USB
Digital Audio
Digital Signal ProcessingNoise Reduction
Power
Operating VoltageNot Specified by Manufacturer
Physical
ColorBlack
MountingCamera/Shoe-Mount
Operating Temperature32 to 104°F / 0 to 40°C
Storage Temperature-4 to 131°F / -20 to 55°C
DimensionsH: 3.22 x W: 1.08 x L: 3.91" / H: 81.8 x W: 27.4 x L: 99.3 mm
Weight2.8 oz / 79 g
Packaging Info
Package Weight0.48 lb
Box Dimensions (LxWxH)5.9 x 5.4 x 2.5"
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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!!!
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I am interested in this microphone. Is there a way to connect Multi Interface Shoe with a cable so that I can use this microphone on a boom in our studio (but still be connected via the cable to the camera)?
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To add to the previous answer, there is a way to mount this mic off the camera, but only for a very short distance. The extension cable that the Sony XLR-K3M uses (and which I own) can also be used with the ECM-B1M to mount the mic just off to the side of the camera, but the cable itself is just barely over 12 inches long and it is very expensive if you were to find it for sale separately (part number 1-002-838-11). I find this cable essential and enables me to mount either my XLR-K3M or my ECM-B1M (which I also own) on to a side handle that I have attached to my caged rig. This allows more clearance for when I am using a gimbal (moves the mic hardware away from the center section). I am actually thinking of purchasing a 2nd cable to complement the one that came with the XLR-K3M
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What is the USB port for?
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