Terminal Device Audio Mode Switching for High-Sensitivity Transmission
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Solution Overview
Problem
Existing terminal devices experience deteriorated call quality when transmitting ambient audio or multiple users' speech signals due to the use of speech compression technologies designed for single voice input, leading to high noise levels and poor audio transmission.
Innovation Solution
A terminal device that switches between speech and audio modes based on call content analysis, using different compression schemes such as ACELP for speech and MDCT for non-speech signals, to optimize bit-rate and bandwidth for high-quality transmission of ambient audio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If speech compression technology is used for ambient audio transmission, then device complexity is reduced, but call quality deteriorates due to high noise levels
Solution Approach 1:
The terminal device dynamically switches between speech mode and audio mode based on real-time analysis of audio content characteristics. The system monitors whether the input audio is speech or ambient sound and automatically selects the appropriate compression mode, making the compression technology adaptable rather than static.
Solution Approach 2:
The system changes compression parameters by switching between different compression schemes (ACELP for speech, MDCT for ambient audio) based on the type of audio input. This parameter change allows optimization of both call quality and computational complexity for different audio scenarios.
2Device complexity
If speech compression technology is used for multiple users' speech signals, then device complexity is reduced, but call quality deteriorates due to high noise levels
Solution Approach 1:
The terminal device dynamically switches between speech mode and audio mode based on real-time analysis of audio content characteristics. The system monitors whether the input audio is speech or ambient sound and automatically selects the appropriate compression mode, making the compression technology adaptable rather than static.
Solution Approach 2:
The system changes compression parameters by switching between different compression schemes (ACELP for speech, MDCT for ambient audio) based on the type of audio input. This parameter change allows optimization of both call quality and computational complexity for different audio scenarios.
3Reliability
If audio mode with high sensitivity is used, then ambient audio transmission quality is improved, but network capacity is reduced due to higher bit-rate requirements
Solution Approach 1:
The terminal device dynamically switches between speech mode and audio mode based on real-time analysis of audio content characteristics. The system monitors whether the input audio is speech or ambient sound and automatically selects the appropriate compression mode, making the compression technology adaptable rather than static.
Solution Approach 2:
The system changes compression parameters by switching between different compression schemes (ACELP for speech, MDCT for ambient audio) based on the type of audio input. This parameter change allows optimization of both call quality and computational complexity for different audio scenarios.
Data Source
AI summary
Provided are a terminal device and method of performing a call function transmitting ambient audio with high sensitivity.A terminal device performing a call function with at least one external device via a network may include a receiver configured to receive at least one of an audio transmission signal and a video transmission signal to be transmitted to the external device; a processor configured to analyze at least one of the audio transmission signal and the video transmission signal, select one of a speech mode and an audio mode, based on a result of the analysis, and compress the audio transmission signal, based on the selected mode; a communicator configured to transmit the compressed audio transmission signal to the external device, and receive an audio reception signal from the external device; and an output unit configured to output the audio reception signal.