Delayline

Allow to sample signal back in time. This delay-line has a twin write index, so that the read pointer can read a contiguous memory area. ____________________________________________________________________________________ | | _index | | readPointer = _index + half size | |

struct Delayline (

) {

void initialize(int numSamples);

~this();

this(this);

void resize(int numSamples);

T nextSample(T incoming);

void nextBuffer(const(T)* input, T* output, int frames);

void feedSample(T incoming);

void feedBuffer(const(T)[] incoming);

const(T)* readPointer();

T sampleFull(int delay);

void sampleFullBuffer(int delayOfMostRecentSample, float* outBuffer, int frames);

static if(is(T == float) || is(T == double))

T sampleLinear(float delay);

static if(is(T == float) || is(T == double))

T sampleHermite(float delay);

static if(is(T == float) || is(T == double))

T sampleSpline3(float delay);

static if(is(T == float) || is(T == double))

T sampleSpline4(float delay);

}

Destructor

~this ~this(): Undocumented in source.

Postblit

this(this) this(this): Undocumented in source.

Members

Functions

feedBuffer void feedBuffer(const(T)[] incoming): Adds several samples at end of delay.
feedSample void feedSample(T incoming): Adds a new sample at end of delay.
initialize void initialize(int numSamples): Initialize the delay line. Can delay up to count samples.
nextBuffer void nextBuffer(const(T)* input, T* output, int frames): Combined feed + sampleFull. Uses the delay line as a fixed delay of count samples.
nextSample T nextSample(T incoming): Combined feed + sampleFull. Uses the delay line as a fixed delay of count samples.
readPointer const(T)* readPointer()
resize void resize(int numSamples): Resize the delay line. Can delay up to count samples. The state is cleared.
sampleFull T sampleFull(int delay): Random access sampling of the delay-line at integer points. Delay 0 = last entered sample with feed().
sampleFullBuffer void sampleFullBuffer(int delayOfMostRecentSample, float* outBuffer, int frames): Random access sampling of the delay-line at integer points, extract a time slice. Delay 0 = last entered sample with feed().
sampleHermite T sampleHermite(float delay): Random access sampling of the delay-line with a 3rd order polynomial.
sampleLinear T sampleLinear(float delay): Random access sampling of the delay-line with linear interpolation.
sampleSpline3 T sampleSpline3(float delay): Third-order spline interpolation http://musicdsp.org/showArchiveComment.php?ArchiveID=62
sampleSpline4 T sampleSpline4(float delay): 4th order spline interpolation http://musicdsp.org/showArchiveComment.php?ArchiveID=60

Delayline

Destructor

Postblit

Members

Functions

Meta

Source