readall

Read all signals from datastore

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Syntax

data = readall(sds)

Description

example

data = readall(sds) reads all signal data from the datastore sds.

Examples

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Open Live Script

Specify the path to four signals included with MATLAB®. The signals are recordings of a bird chirp, a gong, a train, and a splat. All signals are sampled at 8192 Hz.

folder = fullfile(matlabroot,'toolbox','matlab','audiovideo', ...
         ["chirp.mat","gong.mat","train.mat","splat.mat"]);
fs = 8192;
sds = signalDatastore(folder,'SampleRate',fs);

Read the data in the first variables of all the files in the datastore and plot the Fourier synchrosqueezed transform of each signal.

data = readall(sds);

tiledlayout('flow')
for i = 1:length(data)
    nexttile
    fsst(data{i},fs,'yaxis')
end

Input Arguments

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Signal datastore, specified as a signalDatastore object.

Output Arguments

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All signals in the signal datastore, returned as a cell array. Each cell of data contains signals from a file or a member.

Tips

When reading file data, because this function reads all the data in the files at once, you may run out of memory if your dataset is large.

See Also

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Topics

Introduced in R2020a

Signal Processing Toolbox Documentation

Support