DOLBY INTERNATIONAL AB (20240282317). PROCESSING OF AUDIO SIGNALS DURING HIGH FREQUENCY RECONSTRUCTION simplified abstract
Contents
PROCESSING OF AUDIO SIGNALS DURING HIGH FREQUENCY RECONSTRUCTION
Organization Name
Inventor(s)
Kristofer Kjoerling of Solna (SE)
PROCESSING OF AUDIO SIGNALS DURING HIGH FREQUENCY RECONSTRUCTION - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240282317 titled 'PROCESSING OF AUDIO SIGNALS DURING HIGH FREQUENCY RECONSTRUCTION
The patent application pertains to the high frequency reconstruction/regeneration of audio signals, specifically focusing on a method and system for performing HFR of audio signals with significant energy level variations across the low frequency range to reconstruct the high frequencies of the audio signal.
- System designed to generate multiple high frequency subband signals across a high frequency interval from a variety of low frequency subband signals.
- Includes components for receiving the low frequency subband signals, a set of target energies covering different target intervals within the high frequency range, and generating the high frequency subband signals using spectral gain coefficients associated with the low frequency subband signals.
- Energy of the high frequency subband signals can be adjusted using the set of target energies.
- Potential Applications:
This technology can be utilized in audio signal processing applications, such as audio enhancement in music production, speech recognition systems, and telecommunications for clearer audio transmission.
- Problems Solved:
Addresses the challenge of reconstructing high frequencies in audio signals with large energy variations across the low frequency range, ensuring a more balanced and accurate representation of the original audio.
- Benefits:
- Improved audio quality with more accurate high frequency reconstruction. - Enhanced clarity and detail in audio signals. - Greater flexibility and control in audio processing applications.
- Commercial Applications:
Title: Advanced Audio Signal Processing Technology for Enhanced Sound Quality This technology can be applied in the development of professional audio equipment, consumer electronics, and software for audio editing and enhancement, catering to industries such as music production, broadcasting, and telecommunications.
- Prior Art:
Researchers can explore prior art related to audio signal processing, high frequency reconstruction, and spectral gain coefficients in audio engineering literature and patents to gain a deeper understanding of the existing technology landscape.
- Frequently Updated Research:
Stay updated on the latest advancements in audio signal processing, high frequency reconstruction techniques, and innovations in audio technology to leverage the most current developments in the field.
- Questions about High Frequency Reconstruction Technology:
1. How does this technology improve the overall audio quality in audio signal processing applications?
- This technology enhances audio quality by accurately reconstructing high frequencies in audio signals, resulting in clearer and more detailed sound reproduction.
2. What are the potential implications of this technology in the telecommunications industry?
- This technology can improve audio transmission quality in telecommunications systems, leading to clearer and more intelligible communication for users.
Original Abstract Submitted
the application relates to hfr (high frequency reconstruction/regeneration) of audio signals. in particular, the application relates to a method and system for performing hfr of audio signals having large variations in energy level across the low frequency range which is used to reconstruct the high frequencies of the audio signal. a system configured to generate a plurality of high frequency subband signals covering a high frequency interval from a plurality of low frequency subband signals is described. the system comprises means for receiving the plurality of low frequency subband signals; means for receiving a set of target energies, each target energy covering a different target interval within the high frequency interval and being indicative of the desired energy of one or more high frequency subband signals lying within the target interval; means for generating the plurality of high frequency subband signals from the plurality of low frequency subband signals and from a plurality of spectral gain coefficients associated with the plurality of low frequency subband signals, respectively; and means for adjusting the energy of the plurality of high frequency subband signals using the set of target energies.
