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The DS-1 was the first ever distortion guitar effect pedal manufactured by Boss An auditory example of the distortion effect with the clean signal shown first.. Distortion and overdrive are forms of audio signal processing used to alter the sound of amplified electric musical instruments, usually by increasing their gain, producing a "fuzzy", "growling", or "gritty" tone.
The 2000 Daft Punk single,"One More Time", uses a bitcrush effect in its melody. An example of a sound distorted by a bitcrusher is in the introduction to the song "Chemicals" from the album Shrink by German band The Notwist. The samples used in the Roland TR-909 drum machine, for example, have a resolution of 6 bits, leading to a similar sound.
In signal processing, distortion is the alteration of the original shape (or other characteristic) of a signal.In communications and electronics it means the alteration of the waveform of an information-bearing signal, such as an audio signal representing sound or a video signal representing images, in an electronic device or communication channel.
The higher sample rates impose less restrictions on anti-aliasing filter implementation which can result in both lower complexity and less signal distortion. Work done in 1981 by Muraoka et al. [23] showed that music signals with frequency components above 20 kHz were only distinguished from those without by a few of the 176 test subjects. [24]
For example, in a system using 16-bit signed integers, 32767 is the largest positive value that can be represented. If, during processing, the amplitude of the signal is doubled, sample values of, for instance, 32000 should become 64000, but instead cause an integer overflow and saturate to the maximum, 32767.
An example of spatial aliasing is the moiré pattern observed in a poorly pixelized image of a brick wall. Spatial anti-aliasing techniques avoid such poor pixelizations. Aliasing can be caused either by the sampling stage or the reconstruction stage; these may be distinguished by calling sampling aliasing prealiasing and reconstruction ...
The distortion content of class-A circuits (SE or PP) typically monotonically reduces as the signal level is reduced, asymptotic to zero during quiet passages of music. [17] For this reason class-A amplifiers are especially desired for classical and acoustic music since the distortion relative to signal decreases as the music gets quieter ...
Musical tones produced by the human voice and all acoustical musical instruments incorporate noises in varying degrees. Most consonants in human speech (e.g., the sounds of f, v, s, z, both voiced and unvoiced th, Scottish and German ch) are characterised by distinctive noises, and even vowels are not entirely noise free.
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