Zoom Video Communications, Inc. (20240251039). HYBRID DIGITAL SIGNAL PROCESSING-ARTIFICIAL INTELLIGENCE ACOUSTIC ECHO CANCELLATION FOR VIRTUAL CONFERENCES simplified abstract
HYBRID DIGITAL SIGNAL PROCESSING-ARTIFICIAL INTELLIGENCE ACOUSTIC ECHO CANCELLATION FOR VIRTUAL CONFERENCES
Organization Name
Zoom Video Communications, Inc.
Inventor(s)
Jiachuan Deng of Singapore (SG)
Cheng Lun Hu of Singapore (SG)
Zhaofeng Jia of Saratoga CA (US)
HYBRID DIGITAL SIGNAL PROCESSING-ARTIFICIAL INTELLIGENCE ACOUSTIC ECHO CANCELLATION FOR VIRTUAL CONFERENCES - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240251039 titled 'HYBRID DIGITAL SIGNAL PROCESSING-ARTIFICIAL INTELLIGENCE ACOUSTIC ECHO CANCELLATION FOR VIRTUAL CONFERENCES
- Simplified Explanation:**
The patent application describes a method and system for hybrid DSP-AI acoustic echo cancellation for virtual conferences. It involves using digital signal processing (DSP) to filter out linear echo in an audio signal and then determining the level of nonlinear echo. Depending on the level of nonlinear echo, either an AI-based or DSP-based nonlinear echo cancellation is performed to generate a filtered audio signal.
- Key Features and Innovation:**
- Hybrid approach combining DSP and AI for acoustic echo cancellation.
- Utilizes DSP for linear echo cancellation and AI for nonlinear echo cancellation.
- Threshold-based decision-making for choosing between AI-based and DSP-based cancellation.
- Improves audio quality in virtual conferences by reducing echo.
- Potential Applications:**
This technology can be applied in virtual conference platforms, online meetings, teleconferencing systems, and any other audio communication systems where echo cancellation is necessary.
- Problems Solved:**
- Eliminates echo in audio signals during virtual conferences.
- Improves audio quality by reducing nonlinear echo.
- Enhances the overall user experience in virtual communication platforms.
- Benefits:**
- Enhanced audio quality.
- Improved communication experience.
- Efficient echo cancellation for virtual conferences.
- Seamless integration into existing audio systems.
- Commercial Applications:**
The technology can be used in virtual conference platforms, online meeting software, telecommunication systems, and any other audio communication tools. It can improve the audio quality of virtual meetings and enhance user experience, making it a valuable addition to communication technologies.
- Questions about Acoustic Echo Cancellation:**
1. How does hybrid DSP-AI acoustic echo cancellation differ from traditional echo cancellation methods?
- Hybrid DSP-AI approach combines the strengths of both technologies to achieve more effective echo cancellation compared to traditional methods.
2. What are the potential challenges in implementing hybrid DSP-AI acoustic echo cancellation in real-time communication systems?
- Real-time processing requirements and computational complexity may pose challenges in implementing this technology seamlessly in communication systems.
Original Abstract Submitted
example methods and systems provide hybrid dsp-ai acoustic echo cancellation for virtual conferences. a digital signal processing (dsp)-based linear acoustic echo cancelation (aec) can be performed on an input audio signal to filter out linear echo present in the input audio signal and generate a first filtered audio signal. a level of nonlinear echo present in the first filtered audio signal can then be determined. when the level of nonlinear echo satisfies a threshold, an artificial intelligence (ai)-based nonlinear aec can be performed on the first filtered audio signal to generate an ai-filtered audio signal. when the level of nonlinear echo does not satisfy the threshold, a dsp-based nonlinear aec can be performed on the first filtered audio signal to generate a second filtered audio signal.
