Audio Processing
Topic Overview Digital audio is widely available from speech, music, and natural sounds, most of which can also be algorithmically synthesized. Digital audio can be manipulated in a variety of ways, including editing (trim, split, join, ...), enhancing (amplify, denoise, ...), analyzing (visualize, classify, ...), and creating effects (pitch shift, adding reverb, ...). The Wolfram Language provides fully integrated support for audio, including fast in-memory data and large out-of-core files. The built-in audio supports a range of uses, from immediate playing and scrubbing to advanced programmatic processing and analysis.
Creating & Importing Audio »
Audio — represent audio using an array of data, a file or a URL
Import ▪ WebAudioSearch ▪ AudioCapture ▪ SpeechSynthesize ▪ ...
Visualization
AudioPlot — waveform plot of audio
Spectrogram ▪ Periodogram ▪ Cepstrogram
Audio Editing »
AudioAmplify — amplify an audio signal
AudioTrim ▪ AudioPitchShift ▪ AudioJoin ▪ ...
Filtering & Noise Removal »
LowpassFilter — lowpass filtering of audio
WienerFilter ▪ MeanFilter ▪ TotalVariationFilter ▪ ...
Audio Analysis »
AudioIntervals — return intervals of silence, audio, etc.
AudioMeasurements ▪ AudioLocalMeasurements ▪ ShortTimeFourier ▪ ...
Mean ▪ Variance ▪ Median ▪ Quantile ▪ ...
Machine Learning for Audio
AudioIdentify — attempt to identify what an audio signal is a recording of
PitchRecognize ▪ AudioInstanceQ ▪ FeatureSpacePlot ▪ Nearest ▪ ...
NetEncoder ▪ NetChain ▪ NetGraph ▪ ...
Understanding Speech »
SpeechRecognize — convert a spoken audio signal to text