Speaker Test Equipment

Introduction to speaker test instruments

There are various types of speaker test instruments, which can be used to test various performance parameters of speakers to meet the needs of different fields. The following introduces common speaker test instruments:

I. General test instruments

1. Audio analyzer

It is a basic instrument for testing the audio performance of speakers. It can accurately measure and analyze the basic audio parameters such as the frequency, amplitude, and phase of the sound emitted by the speaker to evaluate its sound quality.

2. Distortion tester

It is mainly used to measure the distortion degree of speaker sound signals.

Distortion will affect the restoration of sound. The tester can detect different types of distortion such as harmonic distortion and intermodulation distortion to help determine the distortion of the speaker at different powers and frequencies

3. Frequency response tester

It is used to test the response characteristics of the speaker at different frequencies, that is, the amplification amplitude of the speaker to sounds of different frequencies.

The tester can be used to obtain the frequency response curve of the speaker, so as to understand its performance in each frequency band and judge the balance of its sound.

II. Test system

1. Speaker test solution One-to-four efficient test system

The working principle of this system is to send a sound test signal to the AMP-50 test amplifier through the AD2122 audio instrument to drive the speaker to sound, and use a high-sensitivity microphone in the shielding box to obtain the sound wave signal, which is processed and transmitted to AD2122 for data analysis.

It can realize a set of equipment to connect two test boxes for cross-testing, with high efficiency, and can stably, quickly and accurately test all parameters of the speaker with one button, such as frequency response, distortion, impedance curve, abnormal sound, T-S value, F0, etc., and automatically generate a report after the test is completed.

2. Audiobus speaker test system

Introduced by Opp New Audio Technology Co., Ltd., it aims to solve the problems of noisy environment, low efficiency, complex operating system, and abnormal sound in manual listening in speaker testing in production practice.

The system has a friendly Chinese operation interface and integrates all the items required for speaker testing. It can measure frequency response, distortion, abnormal sound, impedance, polarity, F0 and other items in one click within 3 seconds. The abnormal sound test is accurate and fast, and can completely replace manual listening.

It consists of three modules: shielding box, detection main body, and human-computer interaction part. It is cost-effective and can help companies reduce costs.

3. Soundcheck electroacoustic test system

Founded by Listen Company in the United States, it is a modular PC-based electroacoustic test system.

It can complete the test of various parameters of electroacoustic products with high performance, which not only meets the requirements of simple operation of production line quality control.

It also has various expansion functions required for research and development, which is suitable for the entire design and production process, and can be used as an update and replacement for the hardware of traditional electroacoustic detection equipment