20240055010. DIGITAL FILTERBANK FOR SPECTRAL ENVELOPE ADJUSTMENT simplified abstract (Dolby International AB)
Contents
- 1 DIGITAL FILTERBANK FOR SPECTRAL ENVELOPE ADJUSTMENT
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 DIGITAL FILTERBANK FOR SPECTRAL ENVELOPE ADJUSTMENT - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Abstract
- 1.6 Patent/Innovation Explanation
- 1.7 Potential Applications
- 1.8 Problems Solved
- 1.9 Benefits
- 1.10 Original Abstract Submitted
DIGITAL FILTERBANK FOR SPECTRAL ENVELOPE ADJUSTMENT
Organization Name
Inventor(s)
Per Ekstrand of Saltsjobaden (SE)
DIGITAL FILTERBANK FOR SPECTRAL ENVELOPE ADJUSTMENT - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240055010 titled 'DIGITAL FILTERBANK FOR SPECTRAL ENVELOPE ADJUSTMENT
Simplified Explanation
Abstract
An apparatus and method for processing an audio signal are disclosed. The apparatus includes an input interface, a digital filterbank with an analysis part and a synthesis part, a first phase shifter, a spectral envelope adjuster, a second phase shifter, and an output interface. The first and second phase shifters reduce the complexity of the digital filterbank, which includes complex-exponential modulated versions of a prototype filter.
Patent/Innovation Explanation
- The apparatus processes audio signals using a digital filterbank, which consists of an analysis part and a synthesis part.
- The first and second phase shifters are included to simplify the complexity of the digital filterbank.
- The digital filterbank includes analysis and synthesis filters that are complex-exponential modulated versions of a prototype filter.
- The spectral envelope adjuster is used to adjust the spectral envelope of the audio signal.
Potential Applications
- Audio signal processing in various applications such as music production, sound engineering, and telecommunications.
- Noise reduction and enhancement in audio recordings.
- Speech recognition and voice processing technologies.
- Audio compression and decompression algorithms.
Problems Solved
- Reduces the complexity of the digital filterbank, making it more efficient and easier to implement.
- Improves the accuracy and quality of audio signal processing.
- Allows for better control and adjustment of the spectral envelope of the audio signal.
- Enhances the overall performance and functionality of audio processing systems.
Benefits
- Improved audio signal processing capabilities.
- Enhanced accuracy and quality of audio processing.
- Increased efficiency and reduced complexity of the digital filterbank.
- Better control and adjustment of the spectral envelope of the audio signal.
- Improved performance and functionality of audio processing systems.
Original Abstract Submitted
an apparatus and method are disclosed for processing an audio signal. the apparatus includes an input interface, a digital filterbank having an analysis part and a synthesis part, a first phase shifter, a spectral envelope adjuster, a second phase shifter, and an output interface. the first phase shifter and the second phase shifter reduce a complexity of the digital filterbank, which includes both analysis and synthesis filters that are complex-exponential modulated versions of a prototype filter.
