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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.
An audio analyzer is a test and measurement instrument used to objectively quantify the audio performance of electronic and electro-acoustical devices. Audio quality metrics cover a wide variety of parameters, including level, gain, noise, harmonic and intermodulation distortion, frequency response, relative phase of signals, interchannel crosstalk, and more.
Increasing the audio volume can lead to distortion if, on playback, multiplying the audio data by the global gain may increase the volume past its clipping threshold. Audio recordings that use Compressed audio to cap the overall volume may have already adjusted the global gain field. This may limit the ability to further amplify the recording ...
Audacity: Dominic Mazzoni Yes Yes Yes Yes wxWidgets multi-track audio recorder and editor GPL-2.0-or-later, CC BY 3.0 (documentation) Ecasound: Yes Yes Yes Yes limited support through Cygwin: command line audio recorder GPL-2.0-or-later: Gnome Wave Cleaner: Jeff Welty Yes No No GTK+ audio editor GPL-2.0-or-later: Jokosher: Jokosher community ...
Pitch correction is an electronic effects unit or audio software that changes the intonation (highness or lowness in pitch) of an audio signal so that all pitches will be notes from the equally tempered system (i.e., like the pitches on a piano).
Another type of normalization is based on a measure of loudness, wherein the gain is changed to bring the average loudness to a target level. This average may be approximate, such as a simple measurement of average power (e.g. RMS), or more accurate, such as a measure that addresses human perception e.g. that defined by EBU R128 and offered by ReplayGain, Sound Check and GoldWave.
In particular, when recording quiet parts of an audio signal, the frequencies above 1 kHz would be boosted. This had the effect of increasing the signal-to-noise ratio on tape up to 10 dB depending on the initial signal volume. When it was played back, the decoder reversed the process, in effect reducing the noise level by up to 10 dB.
Audacity: No No No Yes Yes Yes Yes No Yes Yes AMR AudioDesk: Yes Yes Yes Yes Yes No No Yes Yes No SDII (native) Audiotool: No No No Import Export No Export No No No Audition: Yes Unknown No (unsupported since CS5) Yes Yes Yes Yes No Yes Yes AU, IFF, RAW/PCM, SMP, VOC, VOX, WMA BIAS Peak: Unknown Unknown Unknown Unknown Unknown Un ...