18511741. Decoder for Decoding an Encoded Audio Signal and Encoder for Encoding an Audio Signal simplified abstract (Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.)
Contents
- 1 Decoder for Decoding an Encoded Audio Signal and Encoder for Encoding an Audio Signal
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 Decoder for Decoding an Encoded Audio Signal and Encoder for Encoding an Audio Signal - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Unanswered Questions
- 1.11 Original Abstract Submitted
Decoder for Decoding an Encoded Audio Signal and Encoder for Encoding an Audio Signal
Organization Name
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
Inventor(s)
Christian Helmrich of Berlin (DE)
Decoder for Decoding an Encoded Audio Signal and Encoder for Encoding an Audio Signal - A simplified explanation of the abstract
This abstract first appeared for US patent application 18511741 titled 'Decoder for Decoding an Encoded Audio Signal and Encoder for Encoding an Audio Signal
Simplified Explanation
The abstract describes a decoder for decoding an encoded audio signal, which includes an adaptive spectrum-time converter and an overlap-add processor. The converter converts spectral values into time values using transform kernels with different symmetries, based on control information. The overlap-add processor combines the time values to obtain decoded audio values.
- Adaptive spectrum-time converter:
- Converts spectral values into time values - Uses transform kernels with different symmetries - Switches between transform kernels based on control information
- Overlap-add processor:
- Combines successive blocks of time values - Obtains decoded audio values
Potential Applications
This technology can be applied in audio decoding systems, digital signal processing, and audio enhancement technologies.
Problems Solved
1. Efficient decoding of encoded audio signals 2. Improved audio quality through adaptive spectrum-time conversion
Benefits
1. Enhanced audio decoding performance 2. Flexibility in switching between transform kernels 3. Improved audio signal quality
Potential Commercial Applications
"Advanced Audio Decoding Technology for Enhanced Sound Quality"
Possible Prior Art
Prior art may include existing audio decoding algorithms and techniques used in digital signal processing.
Unanswered Questions
How does the adaptive spectrum-time converter handle different types of audio signals?
The article does not specify how the converter adapts to various audio signal characteristics.
What is the impact of switching between transform kernels on the overall decoding process?
The article does not discuss the potential effects of switching between different transform kernels on the decoding performance.
Original Abstract Submitted
A schematic block diagram of a decoder for decoding an encoded audio signal is shown. The decoder includes an adaptive spectrum-time converter and an overlap-add-processor. The adaptive spectrum-time converter converts successive blocks of spectral values into successive blocks of time values, e.g. via a frequency-to-time transform. Furthermore, the adaptive spectrum-time converter receives a control information and switches, in response to the control information, between transform kernels of a first group of transform kernels including one or more transform kernels having different symmetries at sides of a kernel, and a second group of transform kernels including one or more transform kernels having the same symmetries at sides of a transform kernel. Moreover, the overlap-add-processor overlaps and adds the successive blocks of time values to obtain decoded audio values, which may be a decoded audio signal.
