Csound.Air.Spec

Spectral functions

Documentation

toSpec :: Sig -> Spec

Converts signal to spectrum.

fromSpec :: Spec -> Sig

Converts spectrum to signal.

mapSpec :: (Spec -> Spec) -> Sig -> Sig

Applies a transformation to the spectrum of the signal.

scaleSpec :: Sig -> Sig -> Sig

Scales all frequencies. Usefull for transposition. For example, we can transpose a signal by the given amount of semitones:

scaleSpec (semitone 1) asig

addSpec :: Sig -> Sig -> Sig

Adds given amount of Hz to all frequencies.

addSpec hz asig

scalePitch :: Sig -> Sig -> Sig

Scales frequency in semitones.

data CrossSpec

Settings for cross filtering algorithm.

They are the defaults for opvodes: pvsifd, tradsyn, trcross and partials.

• Fft size degree -- it's the power of 2. The default is 12.
• Hop size degree -- it's the power of 2. The default is 9
• scale --amplitude scaling factor. default is 1
• pitch -- the pitch scaling factor. default is 1
• maxTracks -- max number of tracks in resynthesis (tradsyn) and analysis (partials).
• winType -- O: Hamming, 1: Hanning (default)
• Search -- search interval length. The default is 1.05
• Depth -- depth of the effect
• Thresh -- analysis threshold. Tracks below ktresh*max_magnitude will be discarded (1 > ktresh >= 0).The default is 0.01
• MinPoints -- minimum number of time points for a detected peak to make a track (1 is the minimum).
• MaxGap -- maximum gap between time-points for track continuation (> 0). Tracks that have no continuation after kmaxgap will be discarded.

Constructors

CrossSpec

Fields

• crossFft :: D
• crossHopSize :: D
• crossScale :: Sig
• crossPitch :: Sig
• crossMaxTracks :: D
• crossWinType :: D
• crossSearch :: Sig
• crossDepth :: Sig
• crossThresh :: Sig
• crossMinPoints :: Sig
• crossMaxGap :: Sig

Instances

Default CrossSpec

Methods

def :: CrossSpec

crossSpecFilter :: CrossSpec -> Sig2 -> Sig2 -> Sig2

Filters the partials of the second signal with partials of the first signal.

crossSpecVocoder :: CrossSpec -> Sig2 -> Sig2 -> Sig2

Substitutes the partials of the second signal with partials of the first signal.

crossSpecFilter1 :: CrossSpec -> Sig -> Sig -> Sig

crossSpecFilter for mono signals.

crossSpecVocoder1 :: CrossSpec -> Sig -> Sig -> Sig

crossSpecVocoder for mono signals.