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Topic 5Instructional audio
Topic 5Instructional audio
OWT 410OWT 410
Instructional audioInstructional audio
Digital audio
Definition of podcast
Type of podcast
Steps for creating audio podcasts
Tools for creating audio podcasts
Text-to-speech
Using podcasts in education
Digital audioDigital audio
• The audio captured with a microphone is sent to an Analogue-to-Digital Converter that can be in a soundcard.
• The audio is now stored as binary data (0’s and 1’s) on a hard disk or magnetic tape.
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Analogue-to-DigitalConverter
Digital audioDigital audio
• The audio stored as binary data is converted to analogue data (sound).
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Digital-to-AnalogueConverter
Instructional audioInstructional audio
Digital audio
Definition of podcast
Type of podcast
Steps for creating audio podcasts
Tools for creating audio podcasts
Text-to-speech
Using podcasts in education
Definition of podcastDefinition of podcast
• A podcast is simply a media file that can be downloaded from a website.
• Podcasts download quickly and can be placed onto a mobile device like an iPod.
• The term podcast is a combination of pod (Portable On Demand) and cast.
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Instructional audioInstructional audio
Digital audio
Definition of podcast
Type of podcast
Steps for creating audio podcasts
Tools for creating audio podcasts
Text-to-speech
Using podcasts in education
Types of podcastTypes of podcast
There are essentially four types of podcast, namely:
• Audio podcast: The term used for the online delivery of audio content. Example ...
• Video podcast: The term used for the online delivery of video content. Example ...
• Enhanced podcasts: Podcasts that combine audio podcast with synchronised images, similar to a narrated slideshow. Example ...
• Screencast: Is a digital recording of computer screen output as a video screen capture, often containing audio narration. Example ...
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Instructional audioInstructional audio
Digital audio
Definition of podcast
Type of podcast
Steps for creating audio podcasts
Tools for creating audio podcasts
Text-to-speech
Using podcasts in education
Tools for creating audio podcastsTools for creating audio podcasts
The following tools are required for creating an audio podcast:
• A computer with an Internet connection.
• A microphone and headset.
• Recording and editing software.
• MP3 converter.
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Instructional audioInstructional audio
Digital audio
Definition of podcast
Type of podcast
Steps for creating audio podcasts
Tools for creating audio podcasts
Text-to-speech
Using podcasts in education
Steps for creating an audio podcastSteps for creating an audio podcast
Creating an audio podcast includes the following steps:
• Preparing the script: The script is written out and rehearsed prior to recording.
• Recording and editing the sound file: Add effects, such as fade in and out and extra sound tracks.
• Publishing a podcast: Publish to your website or a web hosting and syndicating service that distributes podcasts across the Internet.
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Instructional audioInstructional audio
Digital audio
Definition of podcast
Type of podcast
Steps for creating audio podcasts
Tools for creating audio podcasts
Text-to-speech
Using podcasts in education
Text-to-speechText-to-speech
• Text To Speech (abbreviation: TTS): also called ‘Speech synthesis’ is the artificial production of human speech.
• The computer system used to produce TTS is called a speech engine.
• A Text to Speech engine transforms any text into speech in real time. It literally reads out loud any written information with a smooth and natural sounding voice. Example ...
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Instructional audioInstructional audio
Digital audio
Definition of podcast
Type of podcast
Steps for creating audio podcasts
Tools for creating audio podcasts
Text-to-speech
Using podcasts in education
Using podcasts in educationUsing podcasts in education
Uses of podcasting in learning and teaching are:
• Recording of lectures.
• Recording of special events e.g. outside speakers.
• Subject expert interviews
• Assisting auditory learners, and/or providing for a variety of learning styles.
• Specific “listening practice” for certain disciplines e.g. heart sounds in medicine, speech/phonetics.
• Listening to language – comprehension and pronunciation.
• Submitting oral reports and/or other assignments.
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Using podcasts in educationUsing podcasts in education
• Lecturers providing group feedback on assignments.
• Students capturing audio data as part of inquiry-based learning.
• Students recording notes from field work.
• Students engaging in other forms of creative activities.
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Instructional audioInstructional audio
Digital audio
Definition of podcast
Type of podcasts
Steps for creating audio podcasts
Tools for creating audio podcasts
Text-to-speech
Using podcasts in education
Test to speech examplesTest to speech examples
Natural Voices
Return
AT&T:
Interactive TTS: Loquendo
Demo Cepstal Voices: Cepstral
NeospeechNeospeech demo:
Podcast examplesPodcast examples
English Secondary Language
Return
Audio podcast:
Video podcast: Space shuttle
Enhanced podcast: 1190 AM Know
Quadratic GraphingScreencast: