Audio processing overview

PowerPoint presentation

Skills: none
Concepts: introduction to and history of speech (with and without text) and music processing, audio file formats, the audio processing workflow and editing software and operations

Note:Audio conferencing demo is at https://www.youtube.com/watch?v=MGat1jRQ_SM

Two presentation research ideas

PowerPoint presentation
Presentation transcript
Presentation video
Presentation video, 15% faster
Prerequisite topic module
Prerequisite topic module
Assignment

Skills: none
Concepts: presentation experiments, audio tempo, audio speed, independent variable, dependent variable

PowerPoint style

PowerPoint presentation
Assignment
Assignment
Assignment

Skills: Making presentations with simple, graphical slides, slides which ask questions and explanatory text and links with each slide
Concepts: Bad PowerPoint presentations are boring, but good ones are effective, good slides raise questions

Making narrated PowerPoint videos

PowerPoint presentation
Presentation transcript
Presentation video
Prerequisite topic module
Assignment

Skills: create a narrated video of a PowerPoint presentation
Concepts: none

Configure Audacity to export .mp3 files

PowerPoint presentation
Assignment
Assignment
Prerequisite topic module
Prerequisite topic module

Skills: export .mp3 files, configure Audacity
Concepts: metadata

Recording and encoding analog data

PowerPoint presentation

Skills: Set sample size and rate in Audacity
Concepts: analog versus digital data, analog to digital conversion, digital to analog conversion, sample rate, sample size, quality-file size trade off

Audio compression

PowerPoint presentation

Skills: audio compression
Concepts: the audio processing workflow, quality-file size trade off, capture-edit-compress, lossy versus lossless compression

Editing speech with Audacity

PowerPoint presentation
Assignment
Assignment
Prerequisite topic module


Skills: simple audio editing, exporting the result, finding free sound effects and music
Concepts: audio editing operations, audio effects, audio utility software, Creative Commons license

Exporting .mp3 files

PowerPoint presentation
Presentation transcript
Prerequisite topic module

Skills: export .mp3 files, configure Audacity
Concepts: metadata

Note: This module is superseded by Configure Audacity to export .mp3 files.

Audio recording

PowerPoint presentation
Presentation transcript
Assignment
Assignment

Skills: microphone position and adjustment
Concepts: clipping, dynamic range, sample frequency and size, amount of information captured

Image compression demonstration

PowerPoint presentation
Assignment
Prerequisite topic module
Prerequisite topic module

Skills: compressing an image using Paint.net
Concepts: none

Making a headshot

PowerPoint presentation
Presentation transcript
Presentation video
Assignment
Prerequisite topic module

Skills: selecting, cropping, resizing and sharpening an image, using the tool setting and status information in Paint.net
Concepts: image size, information in an image

Note: This is a somewhat generic demonstration of creating a 200 by 200 pixel image. The module Using Paint.net is more specific to Paint.net.

Image processing examples

PowerPoint presentation
Presentation transcript
Assignment
Prerequisite topic module

Skills: Using several image processing tools and commands
Concepts: image processing tools, image processing operations

Image compression

Skills: image processing workflow, compressing images, matching compression level to your application
Concepts: compression, the visual effect of image compression, the amount of information in an image, pixelation, the importance of compression

PowerPoint presentation

Using Paint.net

PowerPoint presentation
Prerequisite topic module

Skills: navigate the Paint.net user interface, and use the toolbox, tool settings and status lines, command menus, use the history, layer and color windows
Concepts: layer, pixel, image processing operation

Note: For a similar, but more generic demonstration of the creation of a 200 by 200 pixel image see the Image processing demonstration module.

An image processing session

PowerPoint presentation
Assignment
Prerequisite topic module
Prerequisite topic module


Skills: rotate, select, crop, resize, change contrast, filter, compress
Concepts: image processing operation, information

What is image processing?

PowerPoint presentation
Assignment

Skills: image processing work flow
Concepts: history of image processing, evolution of technology from prototype to mainstream, image processing programs, image processing examples, image processing operations

Image characteristics

PowerPoint presentation
Assignment
Prerequisite topic module

Skills: none
Concepts: pixel, compression, image characteristics: size, shape (aspect ratio), resolution, amount of information, flat versus photographic, and file type

Collaborative writing

PowerPoint presentation
Presentation video
Prerequisite topic module
Prerequisite topic module
Prerequisite topic module
Assignment
Assignment
Assignment

Skills: organizing and starting a collaborative writing project
Concepts: compiled versus co-authored documents, structured versus unstructured data, synchronous and asynchronous collaborative writing tools, Doug Engelbart’s contribution

Internet reading

PowerPoint presentation
Presentation video
Presentation transcript

Skills: improved Internet writing
Concepts: Internet reading habits