18153128. MULTI-CHANNEL AUDIO SIGNAL ENCODING AND DECODING METHOD AND APPARATUS simplified abstract (HUAWEI TECHNOLOGIES CO., LTD.)
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MULTI-CHANNEL AUDIO SIGNAL ENCODING AND DECODING METHOD AND APPARATUS
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MULTI-CHANNEL AUDIO SIGNAL ENCODING AND DECODING METHOD AND APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18153128 titled 'MULTI-CHANNEL AUDIO SIGNAL ENCODING AND DECODING METHOD AND APPARATUS
Simplified Explanation
The abstract describes a method for encoding a multi-channel audio signal. Here is a simplified explanation of the abstract:
- The method starts by obtaining a first audio frame to be encoded.
- A correlation value set is obtained, which contains correlation values for different pairs of audio channels.
- M correlation values are selected from the set, where all M values are greater than the remaining correlation values and above a certain threshold.
- M channel pair sets are then obtained based on the selected correlation values.
- A target channel pair set is determined from the M sets, which has the highest sum of correlation values among them.
- Finally, the first audio frame is encoded using the target channel pair set.
Potential applications of this technology:
- Audio compression: This method can be used in audio compression algorithms to efficiently encode multi-channel audio signals, reducing file sizes without significant loss in audio quality.
- Audio streaming: By using this encoding method, streaming platforms can transmit multi-channel audio with reduced bandwidth requirements, allowing for smoother streaming experiences.
Problems solved by this technology:
- Efficient encoding: The method helps in selecting the most relevant channel pairs for encoding, reducing computational complexity and improving encoding efficiency.
- Quality preservation: By considering correlation values, the method ensures that important audio information is preserved during the encoding process.
Benefits of this technology:
- Improved compression ratio: By selecting the most correlated channel pairs, the encoding method can achieve higher compression ratios, resulting in smaller file sizes.
- Reduced bandwidth requirements: The method allows for efficient transmission of multi-channel audio over limited bandwidth networks, making it suitable for streaming applications.
- Preserved audio quality: By considering correlation values and selecting the best channel pairs, the method ensures that the encoded audio maintains a high level of quality.
Original Abstract Submitted
A multi-channel audio signal encoding method includes: obtaining a to-be-encoded first audio frame; obtaining a correlation value set, where the correlation value set includes respective correlation values of a plurality of channel pairs; selecting M correlation values from the correlation value set, where all the M correlation values are greater than correlation values other than the M correlation values in the correlation value set, and all the M correlation values are greater than or equal to a pairing threshold; obtaining M channel pair sets; determining a target channel pair set from the M channel pair sets, where a sum of correlation values of all channel pairs in the target channel pair set is the largest in those of the M channel pair sets; and encoding the first audio frame based on the target channel pair set.
