Spatial Voice Feedback for Distinguishable Video Conference Audio
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Solution Overview
Problem
Video conference participants often encounter difficulties such as muted audio streams without immediate feedback, ineffective noise reduction, and background noise issues, leading to poor user experience.
Innovation Solution
Implementing voice feedback systems that allow users to hear their own audio stream in real-time, processed with spatial audio algorithms, and adjust playback properties to distinguish it from incoming streams, with options to enable or disable feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voice feedback is implemented to allow users to hear their own audio stream in real-time, then user experience is improved and communication effectiveness is enhanced, but device complexity increases due to additional audio processing and playback channels
Solution Approach 1:
The audio feedback system segments the audio stream processing by separating the user's outgoing audio stream from incoming audio streams. The system processes the user's audio stream through specific spatial audio algorithms and plays it back on designated channels, while maintaining separate processing for incoming streams. This segmentation allows independent optimization of feedback quality without complicating the overall system architecture.
Solution Approach 2:
The system introduces an intermediary audio processing layer that handles spatial audio effects, echo cancellation, and noise suppression between the microphone input and speaker output. This intermediary processing layer manages the complexity by encapsulating sophisticated audio algorithms within a standardized interface, preventing direct complexity propagation throughout the entire system.
2Loss of information
If spatial audio algorithms are applied to distinguish user's voice from incoming streams, then audio stream distinguishability is improved, but processing time increases
Solution Approach 1:
The system applies spatial audio effects and processing to the user's audio stream in advance, before the audio needs to be distinguished from incoming streams. By pre-processing the outgoing audio with spatial audio algorithms, echo cancellation, and noise suppression, the system prepares the audio feedback in advance, reducing real-time processing requirements and minimizing delays during actual audio playback.
3Reliability
If real-time audio feedback is provided to prevent muted audio mistakes, then communication reliability is improved, but system resource consumption increases
Solution Approach 1:
The system implements partial audio processing by selectively applying spatial audio algorithms and noise suppression only to the user's outgoing audio stream that needs feedback, rather than processing all audio streams equally. This partial action approach provides sufficient feedback for preventing muted mistakes while consuming fewer computational resources compared to full-system audio processing.
Data Source
AI summary
Systems and methods for providing spatialized voice feedback for video conferences are provided. A computer-implemented method includes receiving a configuration for voice feedback for a client device including a spatial audio configuration including an apparent distance and direction. The method further includes receiving a first audio stream from a remote server. The method further includes receiving a second audio stream from an audio input device of the client device including a voice of a user of the client device. The method further includes playing the first audio stream on a first channel of an audio output device connected to the client device and a modified second audio stream on a second channel of the audio output device, in which the modified second audio stream is configured to cause the user of the client device to hear the voice of the user coming from the apparent distance and direction.