An explanation of how to add various types of multimedia objects to your Connexions content. Examples of some of the more common multimedia objects are included.

This class examines the ways humans experience the realm of sound and how perceptions and technologies of sound emerge from cultural, economic, and historical worlds. In addition to learning about how environmental, linguistic, and musical sounds are construed cross-culturally, students learn about the rise of telephony, architectural acoustics, and sound recording, as well as about the globalized travel of these technologies. Questions of ownership, property, authorship, and copyright in the age of digital file sharing are also addressed. A major concern will be with how the sound/noise boundary has been imagined, created, and modeled across diverse sociocultural and scientific contexts. Auditory examples--sound art, environmental recordings, music--will be provided and invited throughout the term.

The Audio Conference Bridge enables a voice call with multiple (n >2) attendants. The algorithm monitors the voice signals from all attendants, and creates the signals to be transmitted to the attendants. In this module the implementation of such a bridge is described, The implementation is based on the integration of user-specific driver with the Simulink environment building blocks.

The audio features used to characterize the sound signal and classify the sample by instrument.

This module gives a technical description for an audio processing daughterboard intended for use with the TMS320F2812 eZdsp kit from Spectrum Digital.

Take a hands-on ride through the fundamentals of electronics and acoustics, and the process of loudspeaker design and construction. Learn about the engineering and art involved throughout music/movie recording and playback, the design and application of everything from microphones to DACs, amplifiers, and speakers. With the aid of computer assisted audio measuring equipment at the MIT Edgerton Center, analyze the frequency response and distortion of speaker drivers, and understand their effect on what we hear. Design your own speakers - driver selection, crossover networks, and enclosure design - and build them in class!

Innovation continues to occur on the internet at an extremely lively pace. What was once the realm of email, FTP, Gopher, and the Web is barely recognizable a mere 10 years later. Keeping up with the speed of innovation and maintaining a familiarity with the most recent tools and capabilities is handy in some professions and absolutely critical in others. This course is designed to help you understand and effectively use a variety of "web 2.0" technologies including blogs, RSS, wikis, social bookmarking tools, photo sharing tools, mapping tools, audio and video podcasts, and screencasts.

A series of progressive composition projects, culminating in a large final projecting, using various types of music hardware and software. Instruction in recording, editing, synthesis, sampling, digital sound processing, sequencing, and interactive systems. Close listening to computer and electronic music from various genres including Varese, Cage, Schaeffer, Xenakis, Lansky, Stockhausen, Tcherepnin, Barlow, Gunter, and Eno. Subject focuses on using the computer as a means of musical creativity and intuition.

" This class explores interaction with mobile computing systems and telephones by voice, including speech synthesis, recognition, digital recording, and browsing recorded speech. Emphasis on human interface design issues and interaction techniques appropriate for cognitive requirements of speech. Topics include human speech production and perception, speech recognition and text-to-speech algorithms, telephone networks, and spatial and time-compressed listening. Extensive reading from current research literature."

This course examines cultural performances of Asia, including both traditional and contemporary forms, in a variety of genres. Students will explore the communicative power of performances with attention to the ways performers, media, cultural settings, and audiences interact. The representation of cultural difference is considered and how it is altered through processes of globalization. Performances are viewed live when possible, but the course also relies on video, audio, and online materials as necessary.

Class D amplifiers have proven a higher power efficiency performance against linear classes such as Class A, B and AB. Power losses on Class D amplifiers are mainly due to non-ideality of the output transistors, operating as switches, controlled by Pulse Width Modulators. This example describes a method for utilizing both the Enhanced Pulse Width Modulator (ePWM) and the Analog-to-Digital Converter (ADC) of the TMS320F2808™ digital signal controller as D-Class Audio amplifier. The method involves analog full bridge D-class power amplifier and analog low-pass filtering the amplified PWM signal to remove high frequency components, leaving only the audio-frequency content.

Simulation and visualization enhance understanding of communication system behavior and performance. In this project, develop a simple model for a transmitter, channel, and receiver, and study the performance of the system in terms of bit error rate (BER). Channel errors are visualized as images and "auralized" as sound to further develop insight into the relationships between bit error rate and message length.

This course looks at the history of avant-garde and electronic music from the early twentieth century to the present. The class is organized as a theory and production seminar for which students may either produce audio/multimedia projects or a research paper. It engages music scholarship, cultural criticism, studio production, and multi-media development, such as recent software, sound design for film and games, and sound installation. Sound as a media tool for communication and sound as a form of artistic expression are subjects under discussion. The artists' work reviewed in the course includes selections from audio innovators such as the Italian Futurists, Edgard Varèse, John Cage, King Tubby, Brian Eno, Steve Reich, Afrika Bambaataa, Kraftwerk, Merzbow, Aphex Twin, Rza, Björk, and others.

Students learn about the frequency range of human hearing by collecting data from a website simulation. They analyze the data to determine the typical range for students in their classroom. Students participate in a collaborative effort to gather scientific data on humans for use in designing an engineering product.

Download the supporting PDF file for this episode http://bit.ly/fEveZU from the Learning to Teach Online project website.

This case study examines the use of simple audio podcasts in a fully online distance education class, as part of the DUCKLING research project conducted by the Beyond Distance Research Alliance at the University of Leicester in the United Kingdom. It discusses the benefits of using podcasts as part of an integrated online learning strategy in a distance learning context, and gives an overview of how podcasts were used to introduce concepts, provide support for assignments, and to give students direct feedback on their work.

Guidance notes for teachers that accompany Scenario 4

Scenario covering intellectual property rights issues related to recording lectures

This senario is an "introduction to music copyright". In introduces how lecturers can request permission to use music and audio files in their lectures.

This is a fairly common theme / issue faced by lecturers in terms of preparing their r teaching materials.

This module contains the MATLAB m-files for the Audio File Recognition System. The fingerprint database is not included.