Group: dsp¶

D¶

• variable kfr::samplerate_converter<T>::decimation_factor Decimation factor.
• variable kfr::samplerate_converter<T>::delay Delay line buffer.
• variable kfr::samplerate_converter<T>::depth Processing depth.
• function kfr::generic::downsample2(E1 &&, csize_t<offset>)
• function kfr::generic::downsample4(E1 &&, csize_t<offset>)
• enum constant kfr::sample_rate_conversion_quality::draft Draft quality (lowest, fastest).

F¶

• variable kfr::samplerate_converter<T>::filter Filter coefficients.
• function kfr::samplerate_converter<T>::filter_order(sample_rate_conversion_quality) Computes the filter order for a given quality level.
• typedef kfr::samplerate_converter<T>::ftype

G¶

• function kfr::samplerate_converter<T>::get_delay() Gets the integer delay introduced by the resampler.
• function kfr::samplerate_converter<T>::get_fractional_delay() Gets the fractional delay introduced by the resampler.

H¶

• enum constant kfr::sample_rate_conversion_quality::high High quality.

I¶

• variable kfr::samplerate_converter<T>::input_position Current input position.
• function kfr::samplerate_converter<T>::input_position_to_intermediate(itype) Converts an input position to an intermediate position.
• function kfr::samplerate_converter<T>::input_position_to_output(itype) Converts an input position to an output position.
• function kfr::samplerate_converter<T>::input_size_for_output(itype) Calculates the input size for a given output size (pull method).
• variable kfr::samplerate_converter<T>::interpolation_factor Interpolation factor.
• typedef kfr::samplerate_converter<T>::itype

K¶

• variable kfr::samplerate_converter<T>::kaiser_beta Kaiser window beta parameter.

L¶

• enum constant kfr::sample_rate_conversion_quality::low Low quality.

N¶

• enum constant kfr::sample_rate_conversion_quality::normal Normal quality (balanced).

O¶

• function kfr::samplerate_converter<T>::operator=(samplerate_converter<T> &&)
• variable kfr::samplerate_converter<T>::order Filter order.
• variable kfr::samplerate_converter<T>::output_position Current output position.
• function kfr::samplerate_converter<T>::output_position_to_input(itype) Converts an output position to an input position.
• function kfr::samplerate_converter<T>::output_position_to_intermediate(itype) Converts an output position to an intermediate position.
• function kfr::samplerate_converter<T>::output_size_for_input(itype) Calculates the output size for a given input size (push method).

P¶

• enum constant kfr::sample_rate_conversion_quality::perfect Perfect quality (highest, slowest).
• function kfr::samplerate_converter<T>::process_impl(univector_ref<T>, univector_ref<const T>) Internal implementation of the process function.
• function kfr::samplerate_converter<T>::process(univector<T, Tag> &, univector_ref<const T>) Processes input data to produce resampled output (pull or push method).

R¶

• typedef kfr::resample_quality
• function kfr::generic::resampler(sample_rate_conversion_quality, size_t, size_t, subtype<T>, subtype<T>)

S¶

• enum kfr::sample_rate_conversion_quality Defines the quality levels for sample rate conversion.
• function kfr::generic::sample_rate_converter(sample_rate_conversion_quality, size_t, size_t, subtype<T>, subtype<T>) Helper function to create a sample rate converter instance.
• class kfr::samplerate_converter<T> A template class for performing sample rate conversion on audio signals.
• constructor kfr::samplerate_converter<T>::samplerate_converter<T>()
• constructor kfr::samplerate_converter<T>::samplerate_converter<T>(sample_rate_conversion_quality, itype, itype, ftype, ftype) Constructs a sample rate converter.
• constructor kfr::samplerate_converter<T>::samplerate_converter<T>(samplerate_converter<T> &&)
• function kfr::samplerate_converter<T>::sidelobe_att() Calculates the sidelobe attenuation based on the Kaiser beta parameter.
• function kfr::samplerate_converter<T>::sidelobe_attenuation(sample_rate_conversion_quality) Returns the sidelobe attenuation for a given quality level.
• function kfr::samplerate_converter<T>::skip(size_t, univector_ref<const T>) Skips a specified number of output samples, updating internal state.

T¶

• variable kfr::samplerate_converter<T>::taps Number of filter taps.
• function kfr::samplerate_converter<T>::transition_width() Calculates the transition width based on sidelobe attenuation and depth.
• function kfr::samplerate_converter<T>::transition_width(sample_rate_conversion_quality) Returns the transition width for a given quality level.

U¶

• function kfr::generic::upsample2(E1 &&)
• function kfr::generic::upsample4(E1 &&)

W¶

• function kfr::samplerate_converter<T>::window_param(sample_rate_conversion_quality) Computes the Kaiser window parameter for a given quality level.
• function kfr::samplerate_converter<T>::window(ftype) Computes the Kaiser window function for a given sample position.