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Audio Compression: from basics to HE-AAC

Duration: 1 day
Registration Fee: $950
Upcoming class dates & Locations:

27 Jan. 2010, Washington, D.C.
24 Feb. 2010, New York, NY
5 Apr. 2010, Boston, MA
21 Apr. 2010, Washington, D.C.
18 May 2010, New York, NY

Registration Form

Course Description

This course describes in detail the underlying science of audio compression. The evolution of audio standards from PCM and MP3 to the High Efficiency Advanced Audio Coding (HE-AAC) is described. Emphasis is placed on what standards do and do not define.

Course Benefits

Effective use of live and stored audiovisual content can significantly improve communications (both internally between management and employees, as well as externally with customers and vendors), reduce costs, improve training and accelerate learning curves, and improve security. These benefits are illustrated with real-world examples. Audio compression is a key component of multimedia systems. Participants will learn to distinguish between competing standards enabling them to make an informed choice when deciding which feature sets are most appropriate for their needs and objectives.

Participants Will Learn to

  • Distinguish the various audio coding standards and proprietary technologies from each other
  • Make optimal use of audio encoding technologies and products to enhance their productivity
  • Configure and tune audiovisual products for best results
  • Evaluate different audio encoding products/technologies in view of their specific needs

Who Should Participate

Both users and resellers of audio encoder products will benefit from this course. This includes executives, sales and marketing professionals, resellers and distributors. The course can also benefit technical staff and product developers that are new to the subject matter.

Course Content

Applications of Audio Compression

  • VoIP
  • Streaming music
  • Corporate Presentations
  • Distance Learning
  • Videoconferencing

Technical Challenges

  • Bandwidth Reduction
  • Encoder Complexity
  • Decoder complexity and mobile devices
  • Speaker and output device issues

Audio Compression Basics

  • Samples and raw audio formats
  • Stereo and multi-channel audio
  • PCM
  • Psychoacoustics

Audio Compression Standards

  • General Audio Coding
  • MPEG-1 Layer 3 Coding (MP3)
  • AAC
  • HE-AAC
  • TwinVQ
  • Speech Coding , GSM and CELP

Assessing Audio Quality

  • PSNR Metric
  • Subjective Testing

Audio encoder market and major players

  • Consumer Market
  • Corporate, educational and government market
  • Professional market