Uploaded August 2026 | Updated September 2026, 1 week ago

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Speaker howling during a video call, livestream, karaoke session, or online class? 🔊😵‍💫

What causes it? When sound from the speaker is picked up by the microphone, it creates an acoustic feedback loop, resulting in that familiar high-pitched squeal.

ESP-Audio-Effects tackles this automatically with a 4-step howling suppression process:

1️⃣ FFT Spectrum Analysis
Detects abnormal howling signals

2️⃣ Automatic Frequency Detection
Identifies howling frequencies that exceed the threshold

3️⃣ Dynamic Notch Filtering
Precisely suppresses detected frequencies

4️⃣ Gain Control
Helps prevent new howling peaks

Detect → Locate → Suppress → Prevent
All handled automatically by ESP-Audio-Effects.

👉 Find out more here:
espressif.com/en/solutions/audio-solutions/esp-audio-effects

#Espressif #ESP32 #ESPAudioEffects #EmbeddedSystems #EmbeddedAudio #DSP #AIoT