课程信息
4.8
198 个评分
55 个审阅

100% 在线

立即开始,按照自己的计划学习。

可灵活调整截止日期

根据您的日程表重置截止日期。

中级

完成时间大约为52 小时

建议:10 weeks of study, 8 hours/week...

英语(English)

字幕:英语(English)

您将获得的技能

Digital Signal ProcessingSignal ProcessingPython ProgrammingFft Algorithms

100% 在线

立即开始,按照自己的计划学习。

可灵活调整截止日期

根据您的日程表重置截止日期。

中级

完成时间大约为52 小时

建议:10 weeks of study, 8 hours/week...

英语(English)

字幕:英语(English)

教学大纲 - 您将从这门课程中学到什么

1
完成时间为 6 小时

Introduction

Introduction to the course, to the field of Audio Signal Processing, and to the basic mathematics needed to start the course. Introductory demonstrations to some of the software applications and tools to be used. Introduction to Python and to the sms-tools package, the main programming tool for the course....
11 个视频 (总计 126 分钟), 1 个阅读材料, 2 个测验
11 个视频
Teaser3分钟
Welcome4分钟
Introduction to Audio Signal Processing13分钟
Course outline10分钟
Basic mathematics16分钟
Introduction to Audacity9分钟
Introduction to SonicVisualizer10分钟
Introduction to sms-tools17分钟
Introduction to Python11分钟
Python and sounds13分钟
sms-tools software14分钟
1 个阅读材料
Advanced readings and videos10分钟
1 个练习
Basics20分钟
2
完成时间为 5 小时

Discrete Fourier transform

The Discrete Fourier Transform equation; complex exponentials; scalar product in the DFT; DFT of complex sinusoids; DFT of real sinusoids; and inverse-DFT. Demonstrations on how to analyze a sound using the DFT; introduction to Freesound.org. Generating sinusoids and implementing the DFT in Python....
6 个视频 (总计 78 分钟), 1 个阅读材料, 2 个测验
6 个视频
DFT 111分钟
DFT 216分钟
Analyzing a sound8分钟
Introduction to Freesound12分钟
Sinusoids14分钟
DFT15分钟
1 个阅读材料
Advanced readings and videos10分钟
1 个练习
DFT20分钟
3
完成时间为 5 小时

Fourier theorems

Linearity, shift, symmetry, convolution; energy conservation and decibels; phase unwrapping; zero padding; Fast Fourier Transform and zero-phase windowing; and analysis/synthesis. Demonstration of the analysis of simple periodic signals and of complex sounds; demonstration of spectrum analysis tools. Implementing the computation of the spectrum of a sound fragment using Python and presentation of the dftModel functions implemented in the sms-tools package....
7 个视频 (总计 99 分钟), 1 个阅读材料, 2 个测验
7 个视频
Fourier properties 213分钟
Periodic signals11分钟
Complex sounds9分钟
Spectrum13分钟
Fourier properties23分钟
dftModel13分钟
1 个阅读材料
Advanced readings and videos10分钟
1 个练习
Fourier properties20分钟
4
完成时间为 5 小时

Short-time Fourier transform

STFT equation; analysis window; FFT size and hop size; time-frequency compromise; inverse STFT. Demonstration of tools to compute the spectrogram of a sound and on how to analyze a sound using them. Implementation of the windowing of sounds using Python and presentation of the STFT functions from the sms-tools package, explaining how to use them. ...
6 个视频 (总计 90 分钟), 1 个阅读材料, 2 个测验
6 个视频
STFT 117分钟
STFT 216分钟
Spectrogram10分钟
Analyzing a sound14分钟
Windows16分钟
STFT14分钟
1 个阅读材料
Advanced readings and videos10分钟
1 个练习
Short-time Fourier transform20分钟
4.8
55 个审阅Chevron Right

67%

通过此课程获得实实在在的工作福利

热门审阅

创建者 LNDec 4th 2016

Top class! Very well explained, good examples, excellent learning material, practical exercises, and lots and lots of room for further personal study! Well done guys, and especially Xavier! Cheers!

创建者 HZJan 21st 2017

I learned a lot during this course. It took quite a lot of time and energy to complete it, but I'm glad I did. It is now much easier to follow the text of Richard Lyons' book. Highly recommended.

讲师

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Xavier Serra

Full Professor
Dept. of Information and Communication Technologies, UPF
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Prof Julius O Smith, III

Professor of Music and (by courtesy) Electrical Engineering
CCRMA

关于 庞佩乌·法布拉·大学

Pompeu Fabra University (UPF) is a modern public university, conveniently located in the centre of Barcelona (Spain) with the aim of providing top quality education and standing out as a research-based university. UPF is both a specialised university with a unique teaching model and a cutting-edge research institution. UPF places a strong emphasis on quality teaching, based on comprehensive education and student-centred learning, and innovation in the learning processes. UPF’s MOOCs are produced within this general goal....

关于 斯坦福大学

The Leland Stanford Junior University, commonly referred to as Stanford University or Stanford, is an American private research university located in Stanford, California on an 8,180-acre (3,310 ha) campus near Palo Alto, California, United States....

常见问题

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  • Yes, there is no fee in this course. You can follow the course, do the assignments, and obtain a final grade completely for free.

  • No, we do not offer this option.

  • All the materials and tools for the class are available online under open licences.

  • No, it is self-contained.

  • All the assignments start from some existing Python code that the student have to understand and modify. Some programming experience is necessary.

  • You will play around with sounds a lot, analysing them, transforming them, and making interesting new sounds.

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