Call quality improvement system, apparatus and method
AssigneeLG Electronics Inc.
InventorsJae Pil SEO, Keun Sang LEE, Hyeon Sik CHOI
Life of this patent
Estimating the term…
Abstract
Provided is a call quality improvement method configured to operate a call quality improvement system and a call quality improvement apparatus by executing an artificial intelligence (AI) algorithm and/or a machine learning algorithm in a 5G environment connected for the Internet of Things. According to one embodiment of the present disclosure, the call quality improvement method may include receiving a voice signal from a far-end speaker, receiving a sound signal including a voice signal from a near-end speaker, receiving an image of a face of the near-end speaker, including lips, and extracting the voice signal of the near-end speaker from the received sound signal.
Claims20
A call quality improvement system using lip-reading, the call quality improvement system comprising:
- a microphone configured to collect a sound signal including a voice signal of a near-end speaker;
- a speaker configured to output a voice signal from a far-end speaker;
- a camera configured to photograph a face of the near-end speaker, including lips;
- and
- a sound processor configured to extract the voice signal of the near-end speaker from the sound signal collected from the microphone,
- wherein the sound processor comprises an echo reduction module including an adaptive filter configured to filter out an echo component from the sound signal collected through the microphone based on a signal inputted to the speaker, and a filter controller configured to control the adaptive filter, and
- the filter controller changes parameters of the adaptive filter based on lip movement information of the near-end speaker.
A call quality improvement apparatus using lip-reading, the call quality improvement apparatus comprising:
- a call receiver which receives a voice signal from a far-end speaker;
- a sound input module which receives a sound signal including a voice signal from a near-end speaker;
- an image receiver configured to receive an image of a face of the near-end speaker, including lips;
- and
- a sound processor configured to extract the voice signal of the near-end speaker from the sound signal collected through the sound input module,
- wherein the sound processor comprises an adaptive filter configured to filter out an echo component in the sound signal based on the voice signal received by the call receiver, and
- parameters of the adaptive filter are changed based on lip movement information of the near-end speaker.
A call quality improvement method using lip-reading, the call quality improvement method comprising:
- receiving a voice signal from a far-end speaker;
- receiving a sound signal including a voice signal from a near-end speaker;
- receiving an image of a face of the near-end speaker, including lips;
- and
- extracting the voice signal of the near-end speaker from the received sound signal,
- wherein the extracting of the voice signal comprises:
- determining a parameter value of an adaptive filter according to a lip movement of the near-end speaker;
- and
- filtering out an echo component from the sound signal using the adaptive filter based on the voice signal from the far-end speaker.
Dependencies are inferred from the claim text.