What Are Audio Analyzers and How Do They Work? A sound analyzer is a tool used to test the quality of sound on products or for research and development. It contains a stimulus generator and converts analog or digital signals to a suitable form for testing. It also gives an output, which can be used to test the sound. The SR1 Dual-Domain Audio Analyzer is one such device, view more on https://www.technotification.com/2022/05/measure-audio-performance-of-electro-acoustic-devices.html.

SR1 Dual-Domain Audio Analyzer

The SR1 Dual-Domain Audio Analayzer is a versatile instrument that is ideal for many applications. Its configurable configuration panel offers total flexibility. It is an easy-to-use tool that provides measurement results in a report. It can operate on both analog and digital audio signals, and allows up to two simultaneous analyzers on an analog input.

Spectrum Analyzers (Signal Analyzers) | Keysight

Integrated Acoustic Test System

The Integrated Acoustic Testing System is an audio analyzer that combines power amplifier, headphone amplifier, microphone power supply, and optional digital interfaces. Its unique design enables streamlined measurements and measurement workflows. The system is backed by a three-year warranty and includes a Certificate of Traceability. The system includes specific impedance measurement accuracy and delivers accredited calibration.

Frequency masking

Audio analyzers with frequency masking can reduce the detection threshold for a signal by up to 50dB. The threshold is based on the frequency of the signal and the masker. For example, a powerful spike at one kHz tends to mask a low-level tone at 1.1 kHz. Another example: two sine tones at 440 Hz can be clearly perceived when separated, but are inaudible when presented simultaneously.


Historically, audio analyzers have only been able to measure total harmonic distortion and noise. To achieve this, the analyzer used a steep notch filter to remove the fundamental frequency and measured the remaining signal as AC voltage. The resulting data was used to calculate total harmonic distortion and noise. But as the audio industry has evolved, many more types of noise analyzers have been created, including newer digital versions. This article discusses noise, frequency response, and the difference between digital and analog audio analyzers.


Distortion in audio analyzers measures the amount of total harmonic distortion. The distortion ratio of a signal is measured and expressed as a percentage or decibel value. The percentage value represents the amount of energy that is lost as a result of the harmonic components of the signal. This number is usually a negative number as it is expressed as a proportion of the original signal and the distortion. The lowest distortion value is 1%, and the highest is eighty-nine percent. The measurement should be done with an analyzer whose THD is less than the device being tested.


Audio analyzers can be used to measure several different aspects of sound. The levels that an audio device produces are often expressed in Watts or Volts. Other measurements include gain and phase. Gain is the ratio between the signal and the device’s input, and phase is the relationship between two signals of the same frequency. Noise and crosstalk are also important to listeners. The phase of audio analyzers is also a measure of the quality of a signal’s frequency response.


To measure crosstalk with audio analyzers, you need to have direct connections to the jack terminals. This is because the device must have direct connectivity to the headphones and external amplifier. It is important to test all cables in the signal path and replace faulty ones. Crosstalk is typically caused by cables that have shared ground wiring, but it can also be the result of poor PCB layout. Fortunately, there are several techniques to reduce the level of crosstalk in audio signals.