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Function upsample4

function upsample4(E1 &&) dsp

template <typename E1>
KFR_FUNCTION internal::expression_upsample<4, E1> upsample4(E1&& e1)

Upsamples a signal by a factor of 4 by inserting zero samples.

Warning

This function does NOT apply any interpolation filter. It inserts three zero samples between each pair of consecutive input samples. Use this only when no filtering is desired; otherwise prefer a proper samplerate_converter with an interpolation factor of 4.

Template parameters
E1 The input expression type.
Parameters
e1 The input expression.
Returns
An expression producing the upsampled signal.

Fully qualified name: kfr::upsample4(E1 &&)

Declared at dsp/sample_rate_conversion.hpp:579

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