課程信息
4.8
190 個評分
54 個審閱
100% 在線

100% 在線

立即開始,按照自己的計劃學習。
可靈活調整截止日期

可靈活調整截止日期

根據您的日程表重置截止日期。
中級

中級

完成時間(小時)

完成時間大約為50 小時

建議:10 weeks of study, 8 hours/week...
可選語言

英語(English)

字幕:英語(English)

您將獲得的技能

Digital Signal ProcessingSignal ProcessingPython ProgrammingFft Algorithms
100% 在線

100% 在線

立即開始,按照自己的計劃學習。
可靈活調整截止日期

可靈活調整截止日期

根據您的日程表重置截止日期。
中級

中級

完成時間(小時)

完成時間大約為50 小時

建議:10 weeks of study, 8 hours/week...
可選語言

英語(English)

字幕:英語(English)

教學大綱 - 您將從這門課程中學到什麼

1
完成時間(小時)
完成時間為 6 小時

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....
Reading
11 個視頻 (總計 126 分鐘), 1 個閱讀材料, 2 個測驗
Video11 個視頻
Teaser3分鐘
Welcome4分鐘
Introduction to Audio Signal Processing13分鐘
Course outline10分鐘
Basic mathematics16分鐘
Introduction to Audacity9分鐘
Introduction to SonicVisualizer10分鐘
Introduction to sms-tools17分鐘
Introduction to Python11分鐘
Python and sounds13分鐘
sms-tools software14分鐘
Reading1 個閱讀材料
Advanced readings and videos10分鐘
Quiz1 個練習
Basics20分鐘
2
完成時間(小時)
完成時間為 5 小時

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....
Reading
6 個視頻 (總計 78 分鐘), 1 個閱讀材料, 2 個測驗
Video6 個視頻
DFT 111分鐘
DFT 216分鐘
Analyzing a sound8分鐘
Introduction to Freesound12分鐘
Sinusoids14分鐘
DFT15分鐘
Reading1 個閱讀材料
Advanced readings and videos10分鐘
Quiz1 個練習
DFT20分鐘
3
完成時間(小時)
完成時間為 5 小時

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....
Reading
7 個視頻 (總計 99 分鐘), 1 個閱讀材料, 2 個測驗
Video7 個視頻
Fourier properties 213分鐘
Periodic signals11分鐘
Complex sounds9分鐘
Spectrum13分鐘
Fourier properties23分鐘
dftModel13分鐘
Reading1 個閱讀材料
Advanced readings and videos10分鐘
Quiz1 個練習
Fourier properties20分鐘
4
完成時間(小時)
完成時間為 5 小時

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. ...
Reading
6 個視頻 (總計 90 分鐘), 1 個閱讀材料, 2 個測驗
Video6 個視頻
STFT 117分鐘
STFT 216分鐘
Spectrogram10分鐘
Analyzing a sound14分鐘
Windows16分鐘
STFT14分鐘
Reading1 個閱讀材料
Advanced readings and videos10分鐘
Quiz1 個練習
Short-time Fourier transform20分鐘

講師

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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

關於 Universitat Pompeu Fabra of Barcelona

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....

關於 Stanford University

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....

常見問題

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  • 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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