Quiz 2 Flashcards
Amplitude
The size of a sound vibration (height of wave), this determines how loud the sound is. Measured in decibels.
Automation
In GarageBand, automatically changing some effect such as volume over time.
Bit depth
The number of bits of info available for each sample. The higher the bit depth, the better the quality, but the larger the file size.
Clipping
Distortion caused when the volume level exceeds the maximum that can be accurately produced.
Close ended questions
Interview questions that result in short, mostly unusable responses
Crossfade
A transition between two pieces of audio. The edit consists of fading out one source while fading in another. This method creates a smooth transition bc for a short period of time the listener hears both files playing simultaneously
dB
Decibel- unit of measure for the volume or loudness of a sound. The decibel scale is a logarithmic scale in which 1dB is approximately the smallest change in volume audible to human ears
Ducking
Decreasing the volume of one track so it “ ducks” under other tracks
Fade in
A smooth transition from silence to normal volume
Fade out
A smooth transition from normal volume to silence
Fade under
A smooth transition from normal volume to background volume
Field recording
Recording audio on location (outside the studio)
Frequency
The speed of a sound vibration (length of wave), this determines the pitch of the sound. Measured in Hertz (Hz) or Kilohertz( kHz). The human hearing range is 20Hz- 20kHz
Gain
Measurement of audio signal output;volume
Loop
Prerecorded bits of music or instruments that can be repeated and combined to build longer audio compositions
Mix down
The final edited version of an audio project. When finished editing in GarageBand, you export a final mix down of the audio file
Mp3
A compressed audio format. Much smaller than the AIFF format, it typically requires about 1MB of disk space per minute of song
Mute
In GarageBand, to completely silence a track
Natural sound
The ambient noise of a location. Some natural sound is good, it paints a picture of the location. Too much is not good, it competes with the subject audio.
Open ended questions
Interview questions which force the respondent to answer in complete sentences and produce usable sound bites
Panning
Shifting back and forth between the left and right channels
Playhead
In GarageBand, the thin red line topped with an inverted triangle which indicates what part of the audio is currently playing. It can also be used to jump to a point in the audio and or select a point for editing.
Room tone
The relative quiet of a given location (each location has its own unique room tone). Always record a minute of room to cover any silence in the finished edit.
Sample rate
How often a sound is sampled in 5e digitization process. The number of samples per unit of time (usually seconds) taken from an audio signal. (A sampling rate of 44.1kHz equals 44 thousand samples per second)
Solo
To isolate a track, muting all others
Sonic ID
Brief audio vignette that highlights the people, places, and events that make up a given region. They also identify the station with a phrase such as you’re listening to…
Soundbite
The relatively short quote from a longer interview that you shows to use.
“Stepping on” interview answers
Speaking over top of the interviewees responses during an interview. This can ruin an otherwise good soundbite.
Track
In GarageBand, each track usually carries a separate musical instrument; you can independently adjust each tracks volume, Pan, and effects without effecting other tracks in the song.
Using silence
An interviewing technique in which the interviewer remains silent to encourage the interviewee to continue talking.
Volume
The perceived loudness of a sound (amplitude), measured in decibels
Waveform
A two dimensional image representing an audio signal. The larger the spikes represent higher volumes. In GarageBand, waveforms give the user a visual idea of what has been recorded and where to make edits.
