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Audio Editing Terms
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Bit Depth
The number of bits used to represent each audio sample. Higher bit depth increases audio quality and dynamic range.
Normalization
A process which uniformly increases or decreases the amplitude of an audio recording to reach a target level, usually the maximum without introducing distortion.
Pan
The distribution of a sound signal into a new stereo or multi-channel sound field. Panning can place sounds at different positions in the stereo image.
Mute
To silence a track or a section of audio completely, often used to hide unwanted noise or create pauses.
Decibel (dB)
A unit that measures the intensity of sound. It's used in audio editing to represent volume levels.
Noise Reduction
The process of removing background noise or unwanted sound from an audio recording without significantly affecting the intended signal.
Compression
A process that reduces the dynamic range of an audio signal. Compression makes loud sounds quieter and quiet sounds louder.
Trimming
The process of removing parts from the beginning or end of an audio clip to shorten it or clean up unwanted sounds.
Limiter
An audio effect that prevents an audio signal from exceeding a specified level, thus avoiding clipping and distortion.
Sample Rate
The number of samples per second taken from a continuous signal to make a discrete signal. Higher sample rates can capture higher frequencies.
Clipping
Distortion that occurs when an audio signal exceeds the maximum level of the recording medium. It's corrected by reducing gain or using limiters.
Loop
A repeating section of sound material. Short sections of material can be repeated to create ostinato patterns.
Time Stretching
The process of changing the speed or duration of an audio signal without affecting its pitch. Used to sync audio clips or create special effects.
Track
An individual sequence of audio in a recording or mixing session. In editing, multiple tracks can be blended to create the final mix.
Amplitude
The measure of the strength or loudness of an audio signal. In audio editing, adjusting amplitude can increase or decrease volume.
WAV
A file format for storing an audio bitstream on PCs. It's a high-quality, uncompressed audio format.
Waveform
A graphical representation of the audio signal. Editing waveforms directly allows for precise adjustments to timing, amplitude, and more.
Crossfade
A transitional effect where one audio track fades out while another fades in, creating a smooth overlap.
Gain
The level of amplification applied to an audio signal. Adjusting gain is key to achieving the desired volume.
Equalization (EQ)
The adjustment of specific frequency bands within an audio signal. EQ is used to enhance or reduce certain frequencies to improve sound quality.
Quantization
The process of aligning notes or beats within a digital audio workstation to the nearest perfect rhythm which can correct timing errors.
Sustain
Refers to the period in a sound's life cycle during which the sound is maintained after the initial attack until decay, an aspect often adjusted in synthesizers and samplers.
Fade In/Fade Out
Gradually increasing the amplitude of an audio signal from silence (Fade In) or decreasing to silence (Fade Out). It's often used for transitions.
Reverb
Short for 'reverberation', it is an audio effect that simulates the sound bouncing off walls and surfaces, giving a sense of space.
Peak
The highest point in an audio waveform. Peaks are used to gauge the level of a signal and to avoid clipping.
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