Voice Call Spatial Awareness via Azimuth Signal Processing
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Solution Overview
Problem
Current voice call methods are monotonous and lack the ability to enhance the sense of the other party's location, making remote communication less engaging.
Innovation Solution
A voice call method and apparatus that allows either party to enhance the sense of the other party's location by processing voice signals based on azimuth information, using a spatial cue library to superpose binaural and monoaural cues, and playing these signals through a headphone with multiple channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If voice call processing is performed using conventional single-channel playback, then the communication function is simple and reliable, but the content is monotonous and lacks spatial awareness
Solution Approach 1:
The system performs preliminary azimuth calculation between terminal devices before voice signal playback. The calculating unit computes the azimuth based on location information and orientation information of both terminals, and this pre-calculated azimuth is then used to guide the signal separation and playback process, enabling spatial-aware voice calls without real-time complex processing
Solution Approach 2:
The voice signal from the peer terminal is segmented into multiple channel signals based on the calculated azimuth. The processing unit separates the single voice signal into first-channel and second-channel signals, which are then played through different earpieces of the headphone device, creating a spatial distribution effect that enhances方位 perception
2Loss of information
If multi-channel spatial processing is implemented, then the sense of location is enhanced, but the signal processing complexity increases
Solution Approach 1:
The patent introduces an intermediary processing unit that acts as a bridge between the received voice signal and the multi-channel playback system. This processing unit receives the voice signal, applies spatial processing based on pre-calculated azimuth information, and outputs separated channel signals to different earpieces, thereby preserving spatial information while managing processing complexity through a dedicated intermediary component
Data Source
AI summary
Embodiments of this application provide a voice call method and apparatus, and relate to the field of terminal technologies. The method includes: obtaining, by the first terminal device, azimuth information between the first terminal device and the second terminal device based on location information and orientation information of the first terminal device and location information of the second terminal device; and processing, by the first terminal device, a voice signal from the second terminal device based on the azimuth information to obtain a first-channel voice signal and a second-channel voice signal. Then, a first headphone may play the first-channel voice signal and the second-channel voice signal in a first channel and a second channel, respectively. In this way, a user can sense an azimuth status of a peer end during a voice call based on voice fed back by a headphone.