fractional_delay.hpp File Reference

Prepared fractional-delay storage with Thiran-1 and Lagrange-3/5 reads. More...

#include <pulp/signal/interpolator.hpp>
#include <algorithm>
#include <array>
#include <cmath>
#include <cstddef>
#include <limits>
#include <new>
#include <optional>
#include <stdexcept>
#include <type_traits>
#include <utility>
#include <vector>

Go to the source code of this file.

Classes
struct	pulp::signal::Thiran1Coefficients
struct	pulp::signal::detail::FractionalDelaySplit
struct	pulp::signal::FractionalDelaySampleResult< SampleType >
class	pulp::signal::FractionalDelayHistoryT< SampleType >
	Prepared history shared by any number of stateless Lagrange read heads. More...
struct	pulp::signal::FractionalDelayBlockResult
class	pulp::signal::FractionalDelayLineT< SampleType >
	A prepared mono fractional-delay line. More...

Namespaces
namespace	pulp
namespace	pulp::signal
namespace	pulp::signal::detail
	Round-2 effect-wave vocabulary.

Typedefs
using	pulp::signal::FractionalDelayLine = FractionalDelayLineT<float>
using	pulp::signal::FractionalDelayLine64 = FractionalDelayLineT<double>
using	pulp::signal::FractionalDelayHistory = FractionalDelayHistoryT<float>
using	pulp::signal::FractionalDelayHistory64 = FractionalDelayHistoryT<double>

Enumerations
enum class	pulp::signal::FractionalDelayMethod { pulp::signal::thiran1 , pulp::signal::lagrange3 , pulp::signal::lagrange5 }
enum class	pulp::signal::FractionalDelayStatus {   pulp::signal::ok , pulp::signal::not_prepared , pulp::signal::invalid_argument , pulp::signal::non_finite_input ,   pulp::signal::invalid_delay , pulp::signal::output_out_of_range }

Functions
constexpr bool	pulp::signal::is_valid_fractional_delay_method (FractionalDelayMethod method) noexcept
Thiran1Coefficients	pulp::signal::design_thiran1 (double delay_samples) noexcept
	Designs H(z) = (a + z^-1) / (1 + a z^-1), where a = (1 - D) / (1 + D).
double	pulp::signal::thiran1_magnitude (const Thiran1Coefficients &design, double omega) noexcept
double	pulp::signal::thiran1_group_delay_samples (const Thiran1Coefficients &design, double omega) noexcept
	Exact group delay of the first-order allpass at angular frequency omega.
std::array< double, 6 >	pulp::signal::lagrange5_weights (double fraction) noexcept
template<typename SampleType>
SampleType	pulp::signal::lagrange5 (double fraction, SampleType ym2, SampleType ym1, SampleType y0, SampleType y1, SampleType y2, SampleType y3) noexcept
FractionalDelaySplit	pulp::signal::detail::split_fractional_delay (double delay_samples) noexcept

Detailed Description

Prepared fractional-delay storage with Thiran-1 and Lagrange-3/5 reads.