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2. Noise reduction - Wikipedia

   en.wikipedia.org/wiki/Noise_reduction

   Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio .

3. Audio restoration - Wikipedia

   en.wikipedia.org/wiki/Audio_restoration

   Audio restoration. Audio restoration is the process of removing imperfections (such as hiss, impulse noise, crackle, wow and flutter, background noise, and mains hum) from sound recordings. Audio restoration can be performed directly on the recording medium (for example, washing a gramophone record with a cleansing solution), or on a digital ...

4. Dolby noise-reduction system - Wikipedia

   en.wikipedia.org/wiki/Dolby_noise-reduction_system

   A Dolby noise-reduction system, or Dolby NR, is one of a series of noise reduction systems developed by Dolby Laboratories for use in analog audio tape recording. [1] The first was Dolby A, a professional broadband noise reduction system for recording studios in 1965, but the best-known is Dolby B (introduced in 1968), a sliding band system for the consumer market, which helped make high ...

5. Audacity (audio editor) - Wikipedia

   en.wikipedia.org/wiki/Audacity_(audio_editor)

   Audacity is a free and open-source digital audio editor and recording application software, available for Windows, macOS, Linux, and other Unix-like operating systems. [ 4][ 5] As of December 6, 2022, Audacity is the most popular download at FossHub, [ 8] with over 114.2 million downloads since March 2015. It was previously served by Google ...

6. Noise gate - Wikipedia

   en.wikipedia.org/wiki/Noise_gate

   An Alesis Micro Gate noise gate. A noise gate or simply gate is an electronic device or software that is used to control the volume of an audio signal. Comparable to a compressor, which attenuates signals above a threshold, such as loud attacks from the start of musical notes, noise gates attenuate signals that register below the threshold. [ 1]

7. Tape hiss - Wikipedia

   en.wikipedia.org/wiki/Tape_hiss

   Tape hiss. Tape hiss is the high frequency noise present on analogue magnetic tape recordings caused by the size of the magnetic particles used to make the tape. Effectively it is the noise floor of the recording medium. It can be reduced by the use of finer magnetic particles or by increasing the tape speed or the track width used by the recorder.

8. Noise in music - Wikipedia

   en.wikipedia.org/wiki/Noise_in_music

   In both recording and in live musical sound reinforcement, the key to noise minimisation is headroom. Headroom can be used either to reduce distortion and audio feedback by keeping signal levels low, [ 99 ] [ 100 ] or to reduce interference , both from outside sources and from the Johnson–Nyquist noise produced in the equipment, by keeping ...

9. Audio noise measurement - Wikipedia

   en.wikipedia.org/wiki/Audio_noise_measurement

   Audio noise measurement. Audio noise measurement is a process carried out to assess the quality of audio equipment, such as the kind used in recording studios, broadcast engineering, and in-home high fidelity . In audio equipment noise is a low-level hiss or buzz that intrudes on audio output. Every piece of equipment which the recorded signal ...