Educational Materials

LSB Audio seeks to serve our clients, provide products to those in need, and to educate all those in-between. 

Our firm and our independent experts have a variety of experience to share with our industry.  We will update the list of topics below as we are able.  This page is constantly under construction.  The topics with a hyperlink currently have content; topics without hyperlinks are currently planned for contribution.  We will work toward a good breadth and depth of digital audio education and hope you enjoy what we have to share.  

Note: All Educational Materials are © LSB Audio, 2008-2012 unless otherwise noted. 

 

Educational Topics

Elementary DSP

• Sampling and Quantization
• Types of Digital Systems (linearity, time variance, causality, etc.)
• What is a z transform?
• What is the unit circle?
• What is a circular buffer?

Physiology of the Auditory System

• Basic Anatomy of Hearing (example from our sister site www.perceptualentropy.com by Jon)

DSP Filter Design

• Introduction to Digital Filtering
• Principles behind FIR filtering
• Principles behind IIR filtering
• Filter Design for Communications

Dynamics Processing

• Compressors, expanders, companders, and limiters
• What is a time constant?
• How automatic gain control (AGC) works

Digital Audio Effects

• Reverberation
• Phasers
• Flangers
• Chorusing
• Phase Vocoder

Digital Signal Analysis

• Discrete Fourier Transform
• Discrete Cosine Transform
• Modified Discrete Cosine Transform

Psychoacoustics

• Some Basics of Psychoacoustics (example from our sister site www.perceptualentropy.com by Jon)
• Comparison of Cochlear Filter Banks

Audio Coding

• Principles of audio coding
• Types of audio coders
• Frequency vs. time resolution
• MPEG Model 2 Matlab Code (example from our sister site www.perceptualentropy.com by Jon)
• An example Perceptual Audio Codec (example from our sister site www.perceptualentropy.com by Jon)
• A Tutorial on Masking

Multi-rate Digital Processing

• Sample rate conversion
• What is critical sampling?
• Efficient sample rate conversion
• Simple Multi-band Compressor Example

Filter Banks

• What is Perfect Reconstruction?
• Tree Structured Filter Banks
• Octave Spaced Filter Banks

Auditory Neuroscience
Spatialization
Adaptive Filtering

• What is adaptive filtering?
• The Least Mean Square Algorithm
• Recursive Least Squares
• Levinson Durbin Algorithm

Algorithms that Use Adaptive Filtering

• Noise Cancellation
• Echo Cancellation

Speech Processing

• Glottal Models
• Analysis of English Phonemes
• Simple Synthesis of Phonemes
• Simple Speech Analysis - Dynamic Time Warping

Auditory Component Analysis
Advanced Quantization Methods

• Differential Quantization
• Adaptive Quantization
• Adaptive Differential Quantization

Digital Noise Shaping
Audio Synthesis

• The Karplus-Strong Guitar String Model
• Digital Tone Generation

General Topics

LSB Audio, LLC © 2008-2012   Privacy policy