18505494. METHOD AND DEVICE FOR APPLYING DYNAMIC RANGE COMPRESSION TO A HIGHER ORDER AMBISONICS SIGNAL simplified abstract (Dolby Laboratories Licensing Corporation)
Contents
METHOD AND DEVICE FOR APPLYING DYNAMIC RANGE COMPRESSION TO A HIGHER ORDER AMBISONICS SIGNAL
Organization Name
Dolby Laboratories Licensing Corporation
Inventor(s)
Johannes Boehm of Göttingen (DE)
Florian Keiler of Hannover (DE)
METHOD AND DEVICE FOR APPLYING DYNAMIC RANGE COMPRESSION TO A HIGHER ORDER AMBISONICS SIGNAL - A simplified explanation of the abstract
This abstract first appeared for US patent application 18505494 titled 'METHOD AND DEVICE FOR APPLYING DYNAMIC RANGE COMPRESSION TO A HIGHER ORDER AMBISONICS SIGNAL
Simplified Explanation
The method described in the patent application involves performing dynamic range compression (DRC) on a Higher Order Ambisonics (HOA) signal by transforming the signal to the spatial domain, analyzing it, and obtaining gain factors for compression. These gain factors are then used to compress the signal in the spatial domain before transforming it back to the HOA domain.
- Transform HOA signal to spatial domain
- Analyze transformed signal and obtain gain factors for compression
- Apply gain factors to compressed signal in spatial domain
- Transform gain-compensated signal back to HOA domain
- Potential Applications:
- Audio processing and enhancement - Virtual reality and immersive sound experiences
- Problems Solved:
- Managing dynamic range in HOA signals - Improving audio quality and clarity
- Benefits:
- Enhanced audio experience - Improved compression efficiency
- Potential Commercial Applications:
- Audio software and plugins - Virtual reality platforms
- Possible Prior Art:
- Previous methods of dynamic range compression in audio signals
- Unanswered Questions:
- How does this method compare to traditional DRC techniques?
- Unanswered Questions:
The article does not provide a direct comparison between this method and traditional DRC techniques in terms of performance, efficiency, or quality of the compressed signal.
- Are there any limitations to applying this method to different types of audio signals?
The article does not address any potential limitations or challenges that may arise when applying this method to different types of audio signals beyond HOA signals.
Original Abstract Submitted
A method for performing DRC on a HOA signal comprises transforming the HOA signal to the spatial domain, analyzing the transformed HOA signal, and obtaining, from results of said analyzing, gain factors that are usable for dynamic compression. The gain factors can be transmitted together with the HOA signal. When applying the DRC, the HOA signal is transformed to the spatial domain, the gain factors are extracted and multiplied with the transformed HOA signal in the spatial domain, wherein a gain compensated transformed HOA signal is obtained. The gain compensated transformed HOA signal is transformed back into the HOA domain, wherein a gain compensated HOA signal is obtained. The DRC may be applied in the QMF-filter bank domain.
