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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.
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.
A pop filter, pop shield or pop screen is a noise protection filter for microphones, typically used in a recording studio. It serves to reduce or eliminate popping sounds caused by the mechanical impact of fast-moving air on the microphone from plosives during recorded speech and singing. Pop filters can also keep saliva off the microphone ...
Lossy audio compression typically works with a psychoacoustic model—a model of human hearing perception. Lossy audio formats typically involve the use of a time/frequency domain transform, such as a modified discrete cosine transform. With the psychoacoustic model, masking effects such as frequency masking and temporal masking are exploited ...
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Audio recording of a male voice with speech clicks The same recording with clicks digitally removed In speech recording, click noises (not to be confused with click consonants ) result from tongue movements, swallowing , mouth and saliva noises. [ 8 ]
Digital audio editor Creator / developer Software license Microsoft Windows MacOS iOS Linux BSD Online Network storage External hardware Acoustica: Acon Digital Proprietary: Yes Yes No No No No Unknown Unknown Audacity: Audacity Team GNU GPLv2: Yes Yes No [3] Yes Yes No NFS Audiotool: Hobnox: Proprietary: Yes Yes Not officially supported ...
Dialogic ADPCM or VOX is an audio file format, optimized for storing digitized voice data at a low sampling rate. VOX files are most commonly found in telephony applications, as well as an occasional arcade redemption game. [citation needed] It uses a lossy compression algorithm, optimized for voice, not high fidelity.