Keywords: Signal Processing (121)

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Additive Synthesis Concepts

Additive Synthesis Concepts

Additive synthesis creates complex sounds by adding together individual sinusoidal signals called ... (more)

Additive synthesis creates complex sounds by adding together individual sinusoidal signals called partials. A partial's frequency and amplitude are each time-varying functions, so a partial is a more flexible version of the harmonic associated with a Fourier series decomposition of a periodic waveform. In this module you will learn about partials, how to model the timbre of natural instruments, various sources of control information for partials, and how to make a sinusoidal oscillator with an instantaneous frequency that varies with time. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Readings
Collection:
Connexions
Provider:
Rice University
Author:
Ed Doering
No Strings Attached
Additive Synthesis Techniques

Additive Synthesis Techniques

Additive synthesis creates complex sounds by adding together individual sinusoidal signals called ... (more)

Additive synthesis creates complex sounds by adding together individual sinusoidal signals called "partials." In this module you will learn how to synthesize audio waveforms by designing the frequency and amplitude trajectories of the partials. LabVIEW programming techniques for additive synthesis will also be introduced in two examples. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Readings
Collection:
Connexions
Provider:
Rice University
Author:
Ed Doering
No Strings Attached
Amplitude Modulation (AM) Mathematics

Amplitude Modulation (AM) Mathematics

Amplitude modulation (AM) creates interesting special effects when applied to music and ... (more)

Amplitude modulation (AM) creates interesting special effects when applied to music and speech signals. The mathematics of the modulation property of the Fourier transform are presented as the basis for understanding the AM effect, and several audio demonstrations illustrate the AM effect when applied to simple signals (sinusoids) and speech signals. The audio demonstration is implemented by a LabVIEW VI using an event structure as the basis for real-time interactive parameter control. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Readings
Collection:
Connexions
Provider:
Rice University
Author:
Ed Doering
No Strings Attached
Analog Synthesis Modules

Analog Synthesis Modules

Learn about analog synthesizer modules, the foundation for synthesizers based on analog ... (more)

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. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Readings
Collection:
Connexions
Provider:
Rice University
Author:
Ed Doering
No Strings Attached
Band-Limited Pulse Generator

Band-Limited Pulse Generator

Subtractive synthesis techniques often require a wideband excitation source such as a ... (more)

Subtractive synthesis techniques often require a wideband excitation source such as a pulse train to drive a time-varying digital filter. Traditional rectangular pulses have theoretically infinite bandwidth, and therefore always introduce aliasing noise into the input signal. A band-limited pulse (BLP) source is free of aliasing problems, and is more suitable for subtractive synthesis algorithms. The mathematics of the band-limited pulse is presented, and a LabVIEW VI is developed to implement the BLP source. An audio demonstration is included. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Readings
Collection:
Connexions
Provider:
Rice University
Author:
Ed Doering
No Strings Attached
Basic Vector Space Methods in Signal and Systems Theory

Basic Vector Space Methods in Signal and Systems Theory

Linear algebra, vector space methods, and functional analysis are a powerful setting ... (more)

Linear algebra, vector space methods, and functional analysis are a powerful setting for many topics in engineering, science (including social sciences), and business. This collection starts with the simple idea of a matrix times a vector and develops tools and interpretations for many signal processing and system analysis and design methods. (less)

Subject:
Business
Mathematics and Statistics
Science and Technology
Social Sciences
Material Type:
Full Course
Readings
Collection:
Connexions
Provider:
Rice University
Author:
C. Sidney Burrus
No Strings Attached
Bioinformatics and Proteomics, January (IAP) 2005

Bioinformatics and Proteomics, January (IAP) 2005

This interdisciplinary course provides a hands-on approach to students in the topics ... (more)

This interdisciplinary course provides a hands-on approach to students in the topics of bioinformatics and proteomics. Lectures and labs cover sequence analysis, microarray expression analysis, Bayesian methods, control theory, scale-free networks, and biotechnology applications. Designed for those with a computational and/or engineering background, it will include current real-world examples, actual implementations, and engineering design issues. Where applicable, engineering issues from signal processing, network theory, machine learning, robotics and other domains will be expounded upon. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Full Course
Lecture Notes
Syllabi
Collection:
MIT OpenCourseWare
Provider:
M.I.T.
Author:
Gil, Alterovitz
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Biomedical Signal and Image Processing, Spring 2007

Biomedical Signal and Image Processing, Spring 2007

This course presents the fundamentals of digital signal processing with particular emphasis ... (more)

This course presents the fundamentals of digital signal processing with particular emphasis on problems in biomedical research and clinical medicine. It covers principles and algorithms for processing both deterministic and random signals. Topics include data acquisition, imaging, filtering, coding, feature extraction, and modeling. The focus of the course is a series of labs that provide practical experience in processing physiological data, with examples from cardiology, speech processing, and medical imaging. The labs are done on the MIT Server in MATLABĺ¨ during weekly lab sessions that take place in an electronic classroom. Lectures cover signal processing topics relevant to the lab exercises, as well as background on the biological signals processed in the labs. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Collection:
MIT OpenCourseWare
Provider:
M.I.T.
Author:
Clifford, Gari
Fisher, John
Greenberg, Julie
Wells, William (Sandy)
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Build a Small Radar System Capable of Sensing Range, Doppler, and Synthetic Aperture Radar Imaging, January IAP 2011

Build a Small Radar System Capable of Sensing Range, Doppler, and Synthetic Aperture Radar Imaging, January IAP 2011

Are you interested in building and testing your own imaging radar system? ... (more)

Are you interested in building and testing your own imaging radar system? MIT Lincoln Laboratory offers this 3-week course in the design, fabrication, and test of a laptop-based radar sensor capable of measuring Doppler, range, and forming synthetic aperture radar (SAR) images. You do not have to be a radar engineer but it helps if you are interested in any of the following; electronics, amateur radio, physics, or electromagnetics. It is recommended that you have some familiarity with MATLAB;. Teams of three students will receive a radar kit and will attend a total of 5 sessions spanning topics from the fundamentals of radar to SAR imaging. Experiments will be performed each week as the radar kit is implemented. You will bring your radar kit into the field and perform additional experiments such as measuring the speed of passing cars or plotting the range of moving targets. A final SAR imaging contest will test your ability to form a SAR image of a target scene of your choice from around campus; the most detailed and most creative image wins. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Homework and Assignments
Lecture Notes
Syllabi
Collection:
MIT OpenCourseWare
Provider:
M.I.T.
Author:
Charvat, Gregory L.
Fenn, Alan J.
Herd, Jeffrey S.
Kogon, Steve
Williams, Jonathan H.
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Chowning FM Synthesis Instruments

Chowning FM Synthesis Instruments

Implement several different Chowning FM instruments (bell, wood drum, brass, clarinet, and ... (more)

Implement several different Chowning FM instruments (bell, wood drum, brass, clarinet, and bassoon) and compare them to the sounds of physical instruments. Develop code to model the Chowning algorithms as LabVIEW "virtual musical instruments" (VMIs) to be "played" by a MIDI file within MIDI JamSession. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Readings
Collection:
Connexions
Provider:
Rice University
Author:
Ed Doering
No Strings Attached
Chowning FM Synthesis Instruments in LabVIEW

Chowning FM Synthesis Instruments in LabVIEW

John Chowning pioneered frequency modulation (FM) synthesis in the 1970s, and demonstrated ... (more)

John Chowning pioneered frequency modulation (FM) synthesis in the 1970s, and demonstrated how the technique could simulate a diversity of instruments such as brass, woodwinds, and percussion. FM synthesis produces rich spectra from only two sinusoidal oscillators, and more interesting sounds can be produced by using a time-varying modulation index to alter the effective bandwidth and sideband amplitudes over time. A LabVIEW VI is developed to implement the sound of a clarinet, and the VI can be easily modified to simulate the sounds of many other instruments. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Readings
Collection:
Connexions
Provider:
Rice University
Author:
Ed Doering
No Strings Attached
Compose a piece of music using analog synthesizer techniques

Compose a piece of music using analog synthesizer techniques

In this project you will design sounds in LabVIEW. You will create ... (more)

In this project you will design sounds in LabVIEW. You will create two subVIs: one to implement an ADSR-style envelope generator 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. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Readings
Collection:
Connexions
Provider:
Rice University
Author:
Ed Doering
No Strings Attached
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2002 llaF ,gnivloS melborP gnireenignE dna sretupmoC ot noitcudortnI

.desu si egaugnal gnimmargorp avaJ ehT .gninnalp dna ,tnemeganam ,ecneics ,gnireenigne ni ... (more)

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Subject:
Science and Technology
Material Type:
Assessments
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Collection:
MIT OpenCourseWare
Provider:
M.I.T.
Author:
George Kocur
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