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Your Guide to Feedback Suppressor

In modern technology, feedback suppressors are essential for maintaining precise and clear audio transmission. With the growing use of technology in various industries, including telecommunications, virtual reality, and audio-video conferencing, the significance of feedback suppressors has grown. The focus of this article is feedback suppressors.

What is a feedback suppressor?

A feedback suppressor is a component of an audio system that minimizes or eliminates unwanted feedback. Feedback occurs when a portion of a system’s output signal is intercepted by the input and amplified, producing a loud, screeching sound. This can hinder communication between participants and disturb the conference’s flow. The undesired signal is diminished or eliminated by feedback suppressors using a variety of techniques. They are commonly used in audio-video conference systems.

Feedback suppressors are used in audio-video conferencing to cut out the feedback loop between the microphone and speakers, which can disturb the conversation and make it difficult to understand one another. They are also utilized to enhance the conference’s overall audio quality, making it simpler for attendees to hear and comprehend one another.

Todun is a manufacturer of audio and video conference system equipment. Our feedback suppressor’s SKU is TD1200.

The TD1200 features six phantom-powered, balanced microphone inputs, a system connection port, dual-channel inputs, and outputs. It can be expanded serially as necessary to create a massive anti-howling conference system. It has a separate microphone setting. Local conference system speaker obtains independent impact connection port (EFX). It contains 6 microphone frequency shift manual switches, 1 external input frequency shift manual switch, and 6 choices for microphone phantom power.

Different techniques are used by feedback suppressors to minimize or eliminate unwanted audio waves.


One of the most popular techniques is equalization, which modifies the system’s frequency response to lower the volume of particular frequencies that are prone to feedback. This can assist to reduce the echo effect and enhance the audio quality overall.

Phase shifting

Phase shifting is another technique used in conference systems to remove the phase of the feedback signal by adding a phase shift to the audio stream. This can help to lessen or eliminate feedback by lowering the amplitude of the audio stream at specified frequencies.


Another technique used in systems is limiting, it limits the total amplitude of the audio signal to prevent feedback in the initial instance. This technique lowers the probability of feedback by preventing undesirable noises from rising over a particular limit.

Automatic Feedback Suppression

The systems also feature automated feedback suppression technology, which uses a microphone to detect feedback and adjusts the system automatically to lessen or remove it. It also makes it simpler for users to communicate clearly and effectively because manual adjustments are no longer necessary.

The use of feedback suppressors can make conferencing systems a more effective and productive instrument for communication.


Microphone systems, audio-video conference systems, guitar amplifiers, and other audio equipment frequently employ feedback suppressors. They are used in public address systems in places like churches, stadiums, and music halls also in business buildings, plazas, schools, karaoke, conference rooms, and other locations.

Why choose us?

Guangzhou Todun Electronics Co., Ltd. is an audio and video conference system solution service provider integrating R&D, design, production, and sales. Our company was established in 2009, and since its establishment, we have been trying our best to fulfill our customer’s needs.