Audio Editing Dictionary

audio editorEditing Tools

Channel Mixer – used to swap, mix, invert, or combine left and right channels.

Cue Points used to mark and describe or hold information pertaining to a specific position of an audio track. For example, a cue point can hold information about a singer or artist or can mark and hold looping points.

Effect Preview before saving a new edit, this preview will play and display the changes before implementation.

Equalizer a device or computer algorithm that increases/decreases the volume of specific bands of frequencies in an audio signal.

Format Converter many programs have the ability to convert file formats, for example from a WAV PCM signed 16 bit stereo file to a MPEG Audio (mp3) Layer-3 ACM 44100Hz 128 kbps joint stereo file.

Frequency Tuner similar to an equalizer or a parametric equalizer, it is used to adjust frequencies.

Labels and Regional Markers may also be referred to as a bookmark, it can mark or label a specific time location in an editor window.

Mixer a device or algorithm, which enhances or directs audio signals to other destinations, singly or together. May also be used to combine selections, for example a techno music file with an audio voice file to create a new techno mix.

Signal Analysis Tools tools used to analyze audio signals as they travel through audio cables, equipment or other system.

Track Splitter many programs have the ability to separate the tracks into left and right channels, whereas others, depending on the file type, have the ability to break apart multi tracks.

Variable Speeds increases or decreases the playback speed.

Burn CDs it has the ability to copy, or burn, audio files onto blank CDs.

Edits Multiple Tracks the program allows you to insert or edit multiple tracks in an audio file. Customizing specific instruments and sounds is a lot easier.


Band Pass allows only the band of frequencies surrounding the cutoff frequency to pass through.

Band Stop does the opposite of Band Pass filters, blocks all frequencies within a specified range.

Noise Reduction reduces unwanted noises within a sound, such as a background hisses, hums or interference, cannot however be used to separate or remove vocals or voices.

Notch often referred to as a "band reject filter", attenuates frequencies closest to the center frequency of a filter setting, used to minimize hum or acoustic feedback.

Pop/Plick eliminates abrupt changes in a sound, often used in restoration.

Silence Reduction deletes silence from a selected part of an audio file.

Smoother reduces hiss and crackle, often used when restoring old recordings or LPs.

FFT applies Fast Fourier Transform (FFT) filter to a selected part of an audio file, smoothes amplitude transitions at various frequencies, points above zero amplify and filter, points below zero attenuate and filter.

High Pass only allows the frequencies higher than the cutoff frequency.

Low Pass permits all frequencies lower than the cutoff frequency through.

High Shelf Pass filters frequencies above a selected frequency.

Low Shelf Pass a type of filter in which all frequencies below a selected frequency are affected.

Recording Ability

Line-In has the ability to record from a line-in such as a microphone, stereo or other device.

Streaming Audio can record sound from the internet, such as an internet radio station or other streaming audio.

CDs has the ability to either record from an uploaded album or rip directly from the optical drive.

MIDI Files can record from Musical Instrument Digital Interface (MIDI) files, such as those created from a keyboard.

Sound Card has the ability to record what is playing on the sound card, which means that nearly anything can be recorded.

Video File can pull audio from a video file.



Amplify changes volume or loudness.

Chorus an effect in which multiple copies of a signal are played together slightly off time from each other.

Compressor reduces the dynamic range of a signal, making loud sounds quieter and the quiet sounds louder.

Cross Fading fades out one sound while fading in another.

Delay an effect in which a copy of a signal is played back later than the original.

Dynamics volume changes in audio.

Echo a delay-based effect where copies of a signal are introduced then trail off to silence

Expander reduces the level of a signal when it falls below a set threshold in order to overemphasize its dynamic range.

Fade In/Out changes level over time increasing/decreasing in amplitude from/to silence.

Feedback delayed repeated signal that produces multiples of the original signal. Or, a loud squeal created when a channel is receiving its own output.

Flange generates a swirling sound by adding a slightly delayed copy of a signal in which the delay time fluctuates.

Harmonizer can add odd and even multiples of a fundamental frequency to provide a characteristic (or timbre) to give each instrument or voice a unique sound.

Invert changes positive offset to negative and vice versa.

Noise adds a noise to a selected location, often a Gaussian or White noise.

Normalize process by which the gain of digital audio is increased to its maximum volume.

Off Set adjusts or removes a dc offset in a selection by shifting the waveform up or down.

Pitch changes the frequency of the selected part of an audio file, increases or decreases timbre.

Resample takes a single parameter "sample rate" and recalculates existing audio data using the new sample rate.

Reverb an effect in which the ambience of a physical space is simulated, this is achieved by copying a signal many times and repeating it at decreasing levels at intervals so close together that they are heard like one sound.

Reverse plays the audio backwards.

Silence can insert silence at a selected portion of the audio.

Time Warp (stretch) changes the playback speed or stretches/compresses the length of the selection

Trim removes sounds outside of the selected part of audio.

Vibrato arhythmic fluctuation in pitch.

Reduce Vocals may reduce vocals from certain stereo recording by subtracting the left and right channels or by using a bandstop filter.