One-page reference: every device class, why it echoes, who should own the canceller, A2DP vs HFP, and the fix.
Download free PDF
The book · Volume 4 of 7
Audio for Video: A Complete Guide to Sound in Video Products: From PCM and Codecs to Loudness, Accessibility, and Real-Time Voice Processing
This field guide lists every device class, why each one echoes, who should own the canceller, and the A2DP versus HFP trap with Bluetooth headsets. Volume 4 covers echo in depth as part of real-time voice processing: acoustic echo cancellation, automatic gain control, noise suppression and VAD, plus the channel layouts and codecs underneath. Written by Nikolay Sapunov, CEO at Fora Soft.
Users hear their own voice echo back on certain devices?
Send us a recording and the device list, and we will pinpoint which canceller is failing and how to fix it per platform. 250+ video products shipped since 2005.
You get a realistic estimate, technical recommendations and next steps. Free, no obligations.
