Signals may be captured live from sensors, instruments and data feeds, stored in files and databases and generated from simulated models and processes.

Importing from Files

Import — import signals stored in various file formats

"CSV" , "TSV" , ... — tabular data formats

"MP3" , "WAV" , ... — audio formats

"EDF" , "BDF" , ... — scientific and medical data formats

Reading from Connected Devices »

DeviceReadList — read data from a device

DeviceReadTimeSeries   ▪ FindDevices   ▪ DeviceOpen   ▪ ...

Signals from Knowledgebase »

EntityValue — values of entity properties

WeatherData   ▪ FinancialData

Wolfram Data Repository »

ResourceSearch , ResourceData — search for and access a data resource

"Western Europe Grape Harvest"   ▪ "Spoken Digit Commands"   ▪ "Global Obesity Rates"   ▪ ...

Signals from Functions »

Table — sample a function

Array   ▪ ConstantArray   ▪ SquareWave   ▪ SawtoothWave   ▪ ...

Generating from Random Processes »

RandomFunction — simulate a random process

ARMAProcess   ▪ ARIMAProcess   ▪ SARIMAProcess   ▪ ...

Resampling & Interpolation

ArrayResample — resample an array of data

Downsample   ▪ Upsample   ▪ AudioResample   ▪ TimeSeriesResample

Interpolation   ▪ ListInterpolation

Related Tech Notes

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• Analog Filter Design
▪
• Digital Filter Design

Related Guides

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• Signal Processing
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• Signal Visualization & Analysis
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• Importing & Exporting
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• Audio Formats
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• Using Connected Devices

Related Links

• Wolfram Community: Signal Processing
• Wolfram Core Areas: Signal Processing