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Digital Audio.

STUDY
PLAY
Digital Audio.
Sound that has been captured, created, or edited electronically by a computer.
Analog.
Audio sources converted to a digital format by a process called sampling. Sampling reproduces a sound wave by recording many fragments of it.
Channel Number.
The amount of individual audio play out of one single channel.
Monaural. (Mono)
All sources of audio play out of a single channel.
Stereophonic. (Stereo)
Audio sources that can be separated into two different channels. (left and right)
Surround Sound.
multiple audio channels; usually 5-7 separate channels.
Streaming Audio.
Transmitting audio files that can be begin playing over the internet as the remaining data is still being downloaded. It creates little to no wait time to begin hearing the audio file.
Three phases for producing digital audio.
Pre-Production, Production, & Post-Production.
Pre-Production.
Determine the over all purpose of the project an is intended to target the audience.
Audio Hardware.
Needs a computer, Microphone, Recording device, and a Mixer/Board
Pre-Production Software.
Needs an audio editing software.
Audio Editing Software.
captures audio from the original source and imports it into an editing software. it manipulates audio clips and adds the desired tracks and effects to convey the intended message.
Production.
Record, Maintain audio levels, & Save.
Track.
Separate layers of Audio used to record sources individually.
V.U. Meter.
A visual representation of the audio volume level; used to ensure all audio clips recorded are at the same level and not too loud.
Master Level.
Used to control the overall output volume of an audio recording.
Audio Panning.
When audio is recorded through separate channels (let or right)
Over Modulation.
sound interference that occurs during recording when audio levels are too high and causes the signal to distort or lose clarity.
Post-Production
Import/Capture, Edit the Audio Clips, and Export.
Clip.
A section of recorded sound used to create an audio production.
Trim / Space.
Starting and stopping audio clips at a defined point in the recording.
Fade.
A gradual change of volume used to change between clips of audio.
Fade Up (In) Fade Down (Out)
Gradually increasing or decreasing in volume of an audio clip.
Crossfade.
A gradual volume transition from one audio clip to another.
Adjusting Track Levels.
Increasing or decreasing the volume of individual tracks are audible and blend well together.
Loop.
Used to make a particular section of audio repeat.
Audio Effects.
Adjustments to audio clips used to change the original sound in order to reach the desired outcome.
Background Audio.
Music or sounds used together with a voiceover (usually at a lower volume) to add interest and depth to an audio production.
Voice Over.
A voice recording used to convey a message to the audience.
Post-Prodution.
Optimize the audio output file for a specific client needs primary use of audio clip, file size requirements, and file format requirements.
.MP3
Most popular audio file format, standard for downloading and storing music files, and is commonly used for streaming the internet.
.WAV
Standard file format for PC's and native sound format within the Windows environment.
.WMA
Uses Windows Media Player for audio playback, and Microsoft format used to streaming audio files.
.MDI
Musical instrument Digital Interface, standard file format used y digital instruments (keyboards, guitars etc), and contains information about musical notes.
.AAC / .M4A
Standard file format for Apple Computers, higher quality sound than .MP3, and is a standard file format used by mobile devices.