This repository stores the research and report part of my Master's thesis.
The implementation part is visible here.
The aim of this work is to research existing methods for lossy audio compression and to apply non-negative matrix factorization (NMF) in order to improve the compression ratio without a noticeable loss in quality. Therefore, the goals are as following:
- Become familiar with state of the art digital audio encoding and compression methods
- Become familiar with non-negative matrix factorization, its properties and applications in digital audio processing
- Design and implement a proof of concept audio codec utilizing NMF for audio compression, or extend an existing codec with this functionality
- Find a suitable method for measuring perceived audio quality
- Measure the resulting audio quality and compare the quality and compression ratio to existing solutions
The latest compiled PDF can be found here.