Feedback suppressor is a professional audio processing device whose core function is to eliminate the sound feedback phenomenon (i.e. whistling) in the audio system and improve the overall performance of the system. Its main functions are as follows:
1, Core functions
Eliminating acoustic feedback (whistling): By detecting the frequency of the acoustic feedback formed between the microphone and the speaker in real time, automatically generating signals with opposite phases for cancellation, thereby quickly suppressing whistling.
Protecting audio equipment: High intensity sound feedback may cause amplifier overload or burn out speaker tweeters. Suppressors protect equipment by eliminating feedback, extending its service life.
2, Performance optimization
Improving sound quality: After eliminating howling, the clarity and comprehensibility of the sound are significantly improved, avoiding the sound quality loss caused by wideband attenuation in traditional equalizers.
Increase system gain: While suppressing feedback, it is allowed to increase the system volume and expand the sound coverage range (such as in the remote audience area of large venues).
Maintain signal integrity: No need to manually reduce volume or adjust balance parameters, maintain the balance of the original tone.
3, Extension effect
Prevent system feedback: As the "guardian" of the speaker, actively block the sound feedback loop to avoid equipment failure.
Alternative to traditional suppression methods: Compared to frequency shifters (which severely damage sound quality) or analog equalizers (which also affect adjacent frequency bands), its narrowband processing in the 1/60 octave band is more accurate and efficient.
Detailed Photos
In a sound reinforcement system, if the volume of the microphone is significantly increased, the sound emitted by the speaker will be transmitted to the microphone, causing a whistling sound. This phenomenon is called acoustic feedback. The existence of acoustic feedback not only damages the sound quality, but also limits the expansion volume of microphone sound, making it difficult to reproduce the sound picked up by the microphone; Deep acoustic feedback can also make the system signal too strong, causing damage to the amplifier or speaker (usually the high-frequency head of the speaker) and resulting in losses
Product Parameters
Equipment Description:
1. Equipped with a sampling frequency of 96kHz, 32-bit DSP processor, 24 bit A/D and D/A conversion;
2. The device connection method can be managed and configured through RS-485/USB connection;
3. 2 balanced inputs, 2 balanced outputs;
4. One click BYPASS, panel button lock function;
5. Adjustable through software, with a frequency shift of ± 10Hz;
6. It can be adjusted through software, with 12 static traps and 12 dynamic traps per channel, for a total of 48 traps;
7. Adjustable through software, with 5 levels preset, 3 levels fixed, and 2 levels adjustable;
8. Can be adjusted through software, providing compressor and noise gate functions for input and output;
9. Adjustable through software, each channel provides 7 segments of PEQ and high pass settings;
10. Adjustable through software, noise gate, frequency shift, notch EQ, Compression limiter;
11. Can be adjusted through software, optional, feedback suppression mode frequency shift+automatic wave limiting;
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