MATLAB Calculation and Visualization of Short-Term Energy Curve or Short-Term Average Amplitude Curve

Record your own audio signal, convert its sampling rate to 44100Hz, then use MATLAB to compute and plot either the short-term energy curve or short-term average amplitude curve (choose one). Implementation uses 20ms frame length, 10ms frame shift, and rectangular window function with signal processing algorithms.

KSVD Algorithm Constructs Sparse Overcomplete Dictionaries via Training Methods

The KSVD algorithm employs training-based methods to construct sparse overcomplete dictionaries. Implementation requires ompbox9 installation. This sparse dictionary construction approach can be applied to signal processing domains including speech and image processing, featuring iterative atom updates and sparse coding optimization.