DOLBY INTERNATIONAL AB (20240282316). 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 20240282316 titled 'PROCESSING OF AUDIO SIGNALS DURING HIGH FREQUENCY RECONSTRUCTION
The patent application pertains to the high frequency reconstruction/regeneration (HFR) of audio signals, specifically focusing on methods and systems for performing HFR on audio signals with significant energy level variations across the low frequency range to reconstruct the high frequencies.
- System designed to generate multiple high frequency subband signals across a high frequency interval from various low frequency subband signals.
- Includes components for receiving low frequency subband signals, target energies covering different intervals within the high frequency range, and spectral gain coefficients.
- Utilizes these components to generate high frequency subband signals and adjust their energy levels based on the target energies.
- Potential Applications:
This technology can be applied in audio processing systems, music production, sound engineering, and telecommunications for enhancing audio quality and fidelity.
- Problems Solved:
Addresses the challenge of reconstructing high frequencies in audio signals with large energy variations in the low frequency range, improving overall sound reproduction accuracy.
- Benefits:
Enhances the clarity and detail of audio signals, provides a more accurate representation of high frequency content, and improves the overall listening experience for users.
- Commercial Applications:
Title: Advanced Audio Signal Processing System This technology can be utilized in high-end audio equipment, professional recording studios, live sound setups, and communication devices to deliver superior audio quality and fidelity.
- Prior Art:
Readers interested in exploring prior art related to this technology can start by researching advancements in audio signal processing, high frequency reconstruction techniques, and spectral gain coefficient applications in audio engineering.
- Frequently Updated Research:
Stay updated on the latest developments in audio signal processing, high frequency reconstruction algorithms, and advancements in audio quality enhancement technologies.
- Questions about High Frequency Reconstruction:
1. How does this technology improve the accuracy of high frequency reconstruction in audio signals? 2. What are the key components involved in adjusting the energy levels of high frequency subband signals based on target energies?
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.
