https://github.com/jaimescose/audio_signal_processing

https://github.com/jaimescose/audio_signal_processing

Last synced: 28 days ago
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• Host: GitHub
• URL: https://github.com/jaimescose/audio_signal_processing
• Owner: jaimescose
• Created: 2024-11-03T23:50:53.000Z (about 2 months ago)
• Default Branch: main
• Last Pushed: 2024-11-18T03:25:44.000Z (about 1 month ago)
• Last Synced: 2024-11-18T04:24:00.692Z (about 1 month ago)
• Language: Jupyter Notebook
• Size: 11.8 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Audio Signal Processing

My demo lectures and assignments for the course "Audio Signal Processing" offered by Universitat Pompeu Fabra trough Coursera ([online course](https://www.coursera.org/learn/audio-signal-processing)).

## Week 1

On week #1 we received a quick review on the basic mathematical concepts of audio signal processing. We cover the following topics:

- Sinusoidal signals

- Complex numbers

- Fourier transform

- Euler's formula

- Scalar product of two vectors (sequences)

- Even and odd functions

- Convolution

We also covered the basics of Python for audio manupilation.

### Assignment 1

In this assignment we got introduced to: 

- `utilFunttions.py` module in `sms-tools` package

    - Functions for reading and writing audio files which handles amplitude normalization

- Basic sample manipulation:

    - Array indexing and slicing

    - Down-sampling: we discovered the effects of down-sampling on the quality of the audio signal