Costa-Rica Headphone ENC Call Noise Reduction Testing Solution

Using ABTEC high-precision audio analyzer and acoustic testing accessories, a standardized communication acoustic environment is established to objectively quantify the uplink ENC (environmental communication noise reduction) of TWS earphones. Mainly by comparing the MIC curves of the earphones in the ENC on and off states, the full frequency band noise reduction depth is accurately quantified.

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Phone:400-888-8888

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Product Description

Project Overview

(1) ENC working principle
By using a dual microphone array, the speaker's speaking direction can be accurately calculated, while protecting the target voice in the main direction and removing various interference noises in the environment. It can effectively suppress 90% of reverse environmental noise, thereby reducing environmental noise by up to 35dB or more, allowing game players to communicate more freely through voice.

(2) ENC test link
Turn off ENC: Simulate the output test signal of the audio analyzer to the noise source, turn off the ENC function of the headphones (turn off the noise reduction MIC), and measure the microphone curve of the headphones at this time;
Open ENC: Simulate the output test signal of the audio analyzer to the noise source, turn on the ENC function (turn on the noise reduction MIC), and measure the headphone MIC curve;
ENC noise reduction curve=open ENC curve - close ENC curve

Configuration List

Serial Number	Device Name	Model	Quantity
1	Audio analyzer	A5	1
2	Noise source	HS8/Customization	1
3	Bluetooth adapter	B18-A	1
4	Mute/soundproof speaker	Customization	1

Core components of the system
Audio analyzer A5→Click to view

Bluetooth adapter B18-A→Click to view

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4008-368-078

Add:101-102, building 2, No. 1310, Guanguang Road, Kukeng community, Guanlan street, Longhua District, Shenzhen,China
Tel：+86-755-83680078
Email：sales@szaptk.com

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