Sony ECM-W3S Single-Channel Wireless Microphone

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Overview

Single-channel wireless microphone for high-quality digital recording

The ECM-W3S comprises a microphone-transmitter featuring high signal-to-noise (S/N) ratio microphone unit, and a single-channel receiver. The transmitter and receiver process audio digitally and transmit it wirelessly, allowing the capture and recording of one speaker's voice with superb clarity and low noise.

High-quality digital sound recording

High signal-to-noise ratio (S/N) microphone units are integrated into the microphone-transmitter, enabling clear voice recording with low noise.

High-quality digital transmission

Connecting the single-channel receiver to a camera1 from Sony that supports the Multi Interface (MI) Shoe, such as one of the α™ series digital interchangeable-lens cameras or vlog cameras, allows the digital audio signal output from the receiver to be recorded directly by the camera, enabling high-quality sound recording with minimal noise contamination.

Noise-suppressing filter functions

A noise cut filter using digital signal processing to effectively remove noise, and a low cut filter that reduces noise in the low-frequency range, are provided on the microphone side. Less noise removal is needed post-production, making workflow more efficient.

Multi Interface (MI) Shoe compatible

The receiver can be easily attached to a camera1 from Sony that supports the Multi Interface (MI) Shoe, such as one of the α™ series digital interchangeable-lens cameras or vlog cameras, without cables, allowing immediate sound acquisition and avoiding interference with the vari-angle LCD monitor even when it is opened horizontally for shooting. This allows a greater degree of freedom and mobility when shooting.

The convenience of wireless

The ECM-W3S comprises a microphone-transmitter and a single-channel receiver, allowing wireless sound capture of one speaker's voice. Communication is possible at up to 492 ft (150 m)5 in clear line-of-sight locations, with Bluetooth 5.3 (Bluetooth Low Energy) and LC3plus3 codecs providing low power consumption, low latency, and high sound quality. Power saving has also enabled a reduction in battery size.

Safety and attenuator functions

A safety function is provided that allows simultaneous recording of two audio signals, one at normal volume and the other 20 dB lower, reducing the risk of clipping during loud recording. An attenuator function is also provided, allowing the recording level to be set to one of three values according to the audio volume.