20240029746. Method for Encoding Multi-Channel Signal and Encoder simplified abstract (HUAWEI TECHNOLOGIES CO., LTD.)
Contents
Method for Encoding Multi-Channel Signal and Encoder
Organization Name
Inventor(s)
Xingtao Zhang of Shenzhen (CN)
Method for Encoding Multi-Channel Signal and Encoder - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240029746 titled 'Method for Encoding Multi-Channel Signal and Encoder
Simplified Explanation
The method described in this patent application involves encoding an audio signal by determining the interaural time difference (ITD) value of each frame of the signal. The ITD value represents the time delay between the arrival of a sound at the two ears.
To determine the ITD value of a current frame, a characteristic parameter of the frame is obtained. This parameter can be the signal-to-noise ratio or a peak feature of cross-correlation coefficients.
Based on the characteristic parameter, it is determined whether to use the initial ITD value as the finalized ITD value of the current frame. If the initial ITD value is not used, the finalized ITD value of the current frame is set to be the same as the finalized ITD value of the previous frame.
The current frame is then encoded based on the finalized ITD value.
- The method encodes audio signals by determining the ITD value of each frame.
- The characteristic parameter of the frame is used to decide whether to use the initial ITD value or the finalized ITD value.
- If the initial ITD value is not used, the finalized ITD value of the current frame is set to be the same as the finalized ITD value of the previous frame.
- The audio signal is encoded based on the finalized ITD value.
Potential applications of this technology:
- Audio encoding and compression algorithms can benefit from accurate ITD values, leading to improved sound quality and efficient data storage.
- Virtual reality and augmented reality systems can use precise ITD values to create realistic and immersive audio experiences.
- Hearing aid devices can utilize accurate ITD values to enhance sound localization and improve the listening experience for individuals with hearing impairments.
Problems solved by this technology:
- Inaccurate ITD values can result in distorted audio perception and poor sound localization.
- Traditional methods of determining ITD values may not consider important characteristic parameters, leading to suboptimal encoding and decoding of audio signals.
Benefits of this technology:
- Improved audio quality and localization accuracy in various applications.
- Efficient encoding and compression of audio signals, reducing data storage requirements.
- Enhanced listening experience for individuals with hearing impairments, particularly when using hearing aid devices.
Original Abstract Submitted
a method for encoding an audio signal includes obtaining an itd value of a current frame of an audio signal; obtaining a characteristic parameter of the current frame, wherein the characteristic parameter comprises at least one of a signal-to-noise ratio of the current frame or a peak feature of cross-correlation coefficients of the current frame; determining, based on the characteristic parameter, whether to use the initial itd value as the finalized itd value of the current frame; and encoding the current frame based on the finalized itd value of the current frame, wherein if the initial itd value is determined as not used as the finalized itd value of the current frame, the finalized itd value of the current frame is the same as a finalized itd value of a previous frame of the current frame.
