Musical signal processing with labview  (Page 3/6)

Learning module descriptions

Labview programming techniques for audio signal processing

• Getting Started with LabVIEW -- Learn about the LabVIEW programming environment, create your first virtual instrument (VI), learn about LabVIEW's graphical dataflowprogramming paradigm, become acquainted with some of LabVIEW's data types, and review some useful debugging techniques.
• Editing Tips for LabVIEW -- Learn how to efficiently create and edit LabVIEW block diagrams and front panels.
• Essential Programming Structures in LabVIEW -- Learn how to work with LabVIEW's essential programming structures such as for-loops, while-loops, case structure,MathScript node, and diagram disable.
• Create a SubVI in LabVIEW -- A subVI is equivalent to a function, subroutine, or method in other programming languages, and useful for encapsulating code that will be reused multiple time. A subVI is also used to develop hierarchical programs.
• Arrays in LabVIEW -- Learn how to create and manipulate arrays, perform mathematical operations on them, and use spreadsheets to read andwrite arrays to the file system.
• Audio Output Using LabVIEW's "Play Waveform" Express VI -- Learn how to play an audio signal (1-D array) using your computer's soundcard.
• Audio Sources in LabVIEW -- Learn how to use the 'Sine Wave' subVI from the Signal Processing palette as an audio source.
• Reading and Writing Audio Files in LabVIEW -- Learn how to use LabVIEW to retrieve an audio signal from a WAV-format file, and how to save an audio signal that youhave created to a WAV-format file.
• Real-Time Audio Output in LabVIEW -- Learn how to set up the framework for your own LabVIEW application that can generate continuous audio output and respondto changes on the front panel in real time.

Introduction to audio and musical signals

• Perception of Sound -- A basic understanding of human perception of sound is vital if you wish to design music synthesis algorithms to achieve your goals.In this module, learn about pitch and frequency, intensity and amplitude, harmonics, and tuning systems. The treatment of these concepts is oriented to the creation of music synthesis algorithms.
• Mini-Project: Musical Intervals and the Equal-Tempered Scale -- Learn about musical intervals, and discover the reason behind the choice of frequencies for the tuning system called "equal temperament."

Analog synthesis and modular synthesizers

• Analog Synthesis Modules -- Learn about analog synthesizer modules, the foundation for synthesizers based on analog electronics technology.While analog synthesis has largely been replaced by digital techniques, the concepts associated with analog modular synthesis(oscillators, amplifiers, envelope generators, and patches) still form the basis for many digital synthesis algorithms.
• Mini-Project: Compose a Piece of Music Using Analog Synthesizer Techniques -- Design sounds in LabVIEW using analog synthesis techniques. You will create two subVIs: one to implement an ADSR-style envelopegenerator and the other to create a multi-voice sound source. You will then create a top-level application VI to render a simple musical composition as an audio file.