Audio processing overview. S kills : none C oncepts : introduction to and history of speech (with and without text) and music processing, audio file formats, the audio processing workflow, audio processing software and operations.
Audio processing overview
Concepts: introduction to and history of speech (with and without text) and music processing, audio file formats, the audio processing workflow, audio processing software and operations
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Let’s take a look at
Apple iTunes store, 2001
Music is moving to the cloud
Will users shift to the cloud as technology improves?
Packet voice conference, January 1978
Watch the video (5m 18s)
Vocaltec Internet Phone, 1995
Text to speech
Speech synthesis demo
Microsoft research: Enabling Cross-Lingual Conversations in Real Time
PR Demo of translation “breakthrough”
Government and industry investment are complementary
Complementary collaboration on machine translation since 1945
Audio processing work flow
Speech to text
Speech recognition demo
Audacity – the audio editor we will use
Popular audio formats
Word processing operations
These are word processing operations. Can you think of some audio processing operations?
Change text size
Change text color
Change footnote style
Compress a text file
Combine multiple tracks
Compress an audio file
Audio editing example
How did I do this?
Audio utility programs
We discussed three types of audio application – without looking back, what were they?
We discussed two types of hybrid application involving both speech and text – what were they?
If you listen to Internet music, do you download it or stream it?
What are the pros and cons of downloading versus streaming music?
Will future technology make downloading more or less attractive compared to streaming?
Audacity audio recorder and editor:
Audacity audio recorder and editor, portable version:
Audacity "how to" videos:
Neil Young on the need for higher quality music audio: