--> Do you need narration for an online course or presentation?
--> Need to edit a podcast or interview for your next project?
--> Want to include a personalized message to your students on your website?
If you need to a program to create quick audio files or to edit an audio file that you already have, then don't worry. Luckily, there are plenty free and easy programs available online for your use.
First, here's some essential facts about AUDIO that you need to know followed by a short list of some sites for creating and editing audio files:
All you need to know about AUDIO:
types of audio files - voice, sound effects, music
--> Need to edit a podcast or interview for your next project?
--> Want to include a personalized message to your students on your website?
If you need to a program to create quick audio files or to edit an audio file that you already have, then don't worry. Luckily, there are plenty free and easy programs available online for your use.
First, here's some essential facts about AUDIO that you need to know followed by a short list of some sites for creating and editing audio files:
All you need to know about AUDIO:
types of audio files - voice, sound effects, music
ways of creating audio files - microphone, music, computer program
file compression - making large audio files smaller to transmit them over the Internet.
file compression - making large audio files smaller to transmit them over the Internet.
raw audio file - uncompressed audio file used by audio editing programs.
*types of audio file formats:
codec - the program that encodes and decodes raw audio files.
streaming audio - playing large audio files while still transmitting them.
TTS technology - "text-to-speech" technology; you type in text to create audio files
--> lossy - this type of compression permanently eliminates information from a file so that when it is uncompressed, the original information is gone.
--> lossless - this type of compression preserves all original information from a file so that when the file is uncompressed, these parts still remain. (*Lossless audio files are larger than lossy ones but they require less space without losing sound quality.)
--> uncompressed - no compression scheme is applied to the file.
-->MP4/AAC or Advanced Audio Coding (plays on iPods and iPhones; lossy)
-->MP3 (used for music downloads; lossy)
-->WMA (stands for Windows Media Audio; proprietary for Windows; lossy and lossless)
-->AIFF (stands for Audio Interchange File Format; uncompressed; proprietary for Apple)
-->WAV (stands for Waveform Audio; uncompressed)
Here are 4 places to go for CREATING and/or EDITING AUDIO files:
-->AIFF (stands for Audio Interchange File Format; uncompressed; proprietary for Apple)
-->WAV (stands for Waveform Audio; uncompressed)
Here are 4 places to go for CREATING and/or EDITING AUDIO files: