This introduction will cover :

• What is Digtial Signal Processing?
• Physics and Perception of Sound
• Sound as Electricity and as Numbers
• Linux Tools for DSP
• Sound Synthesis
• Fast Fourier Transform
• Filtering
• Sound Processing (Effects)
• Other areas of interest
• Resources

Will not cover :

• Audio data compression (MP3, Ogg Vorbis etc)
• Sound card drivers