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Discrete-Time Speech Signal Processing: Principles and Practice

Audio Demonstrations

Here you can download a set of audio demonstrations collected originally for my MIT course Digital Speech Processing, which I taught six times over the past decade. The audio demonstrations serve to illustrate principles, examples, and exercises that are introduced throughout the text and do not necessarily represent the state-of-the-art in a particular area or of a particular technique given the continued progress being made in this field.

The demonstrations are by no means complete, representing a (non-uniform) sparse sampling of the material. Over time, I will be updating, formalizing, and adding to this collection. I will, for example, add demonstrations from the work of a variety of authors for greater diversity, and I will also include more instructional demonstrations of concepts and history. Therefore, I would appreciate suggestions and any general constructive criticism about the demonstration structure.

Each chapter has an associated folder of audio demonstrations. Each chapter folder contains a readme file that describes its contents and audio files in both pcm format (16-bit integer) and wav format. In addition, there occassionally appear figures (e.g., comparative spectrograms of speech file segments) to illustrate a concept and/or supplement the text.

To illustrate, the directory structure for Chapter 9 is given by:

  • chapter9/
    • readme_chp9.txt
    • pcm_files/
    • wav_files/
    • figures/

In addition to the chapter folders, there is a folder called "scripts" that contains in-house MATLAB and Unix routines that were used in creating the pcm, wav, and figure files.

Obtaining the Files

The table below provides links to download the audio demonstration files. Readers on faster Internet connections may wish to download all the files for a chapter in a single archive via HTTP. Since some of the archives are relatively large, readers on slower connections may find it more convenient to download separate subdirectory archives from the book's FTP site.

You can access the FTP site via your browser (if it offers FTP support). Alternatively, you can log onto the site using a dedicated FTP client at the following coordinates:

Host: ftp.prenhall.com
User ID: anonymous
Password: [your email address]
Directory: /pub/ptr/prof_and_ref_electrical_engineering.w-041/quatieri/audio/

Audio downloads organized by chapter
1 Read Me FTP Directory All Files (9.3 MB, tar.gz)
3 Read Me FTP Directory All Files (23.6 MB, tar.gz)
4 Read Me FTP Directory All Files (804 kb, tar.gz)
5 Read Me FTP Directory All Files (6.6 MB, tar.gz)
6 Read Me FTP Directory All Files (16.4 MB, tar.gz)
7 Read Me FTP Directory All Files (3.5 MB, tar.gz)
8 Read Me FTP Directory All Files (4.2 MB, tar.gz)
9 Read Me FTP Directory All Files (9.6 MB, tar.gz)
10 Read Me FTP Directory All Files (228 kb, tar.gz)
11 Read Me FTP Directory All Files (340 kb, tar.gz)
12 Read Me FTP Directory All Files (2.2 MB, tar.gz)
13 Read Me FTP Directory All Files (4.8 MB, tar.gz)
14 Read Me FTP Directory All Files (4 MB, tar.gz)
Cover Read Me FTP Directory All Files (1.7 MB, tar.gz)
Scripts n/a FTP Directory All Files (4 kb, tar.gz)

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