sndlib¶
A module for generating sounds in python.
Functions
AMTone([frequency, AMFreq, AMDepth, phase, …]) |
Generate an amplitude modulated tone. |
AMToneIPD([frequency, AMFreq, AMDepth, …]) |
Generate an amplitude modulated tone with an interaural phase difference (IPD) in the carrier and/or modulation phase. |
AMToneVarLev([frequency, AMFreq, AMDepth, …]) |
Generate an amplitude modulated (AM) tone. |
ERBDistance(f1, f2) |
Compute the distance in equivalent rectangular bandwiths (ERBs) between f1 and f2. |
FMTone([fc, fm, mi, phase, level, duration, …]) |
Generate a frequency modulated tone. |
ITDShift(sig, f1, f2, ITD, channel, fs) |
Set the ITD of a sound within the frequency region bounded by ‘f1’ and ‘f2’ |
addSounds(snd1, snd2, delay, fs) |
Add or concatenate two sounds. |
binauralPureTone([frequency, phase, level, …]) |
Generate a pure tone with an optional interaural time or level difference. |
broadbandNoise([spectrumLevel, duration, …]) |
Synthetise a broadband noise. |
camSinFMComplex([F0, lowHarm, highHarm, …]) |
Generate a complex tone frequency modulated with an exponential sinusoid. |
camSinFMTone([fc, fm, deltaCams, fmPhase, …]) |
Generate a tone frequency modulated with an exponential sinusoid. |
chirp([freqStart, ftype, rate, level, …]) |
Synthetize a chirp, that is a tone with frequency changing linearly or exponentially over time with a give rate. |
complexTone([F0, harmPhase, lowHarm, …]) |
Synthetise a complex tone. |
complexToneIPD([F0, harmPhase, lowHarm, …]) |
Synthetise a complex tone with an interaural phase difference (IPD). |
complexToneParallel([F0, harmPhase, …]) |
Synthetise a complex tone. |
delayAdd(sig, delay, gain, iterations, …) |
Delay and add algorithm for the generation of iterated rippled noise. |
dichoticNoiseFromSin([F0, lowHarm, …]) |
Generate Huggins pitch or narrow-band noise from random-phase sinusoids. |
expAMNoise([fc, fm, deltaCents, fmPhase, …]) |
Generate a sinusoidally amplitude-modulated noise with an exponentially modulated AM frequency. |
expSinFMComplex([F0, lowHarm, highHarm, …]) |
Generate a frequency-modulated complex tone with an exponential sinusoid. |
expSinFMTone([fc, fm, deltaCents, fmPhase, …]) |
Generate a frequency-modulated tone with an exponential sinusoid. |
fir2Filt(f1, f2, f3, f4, snd, fs) |
Filter signal with a fir2 filter. |
fm_complex1([midF0, harmPhase, lowHarm, …]) |
Synthetise a complex tone with an embedded FM starting and stopping at a chosen time after the tone onset. |
fm_complex2([midF0, harmPhase, lowHarm, …]) |
Synthetise a complex tone with an embedded FM starting and stopping at a chosen time after the tone onset. |
freqFromERBInterval(f1, deltaERB) |
Compute the frequency, in Hz, corresponding to a distance, in equivalent rectangular bandwidths (ERBs), of ‘deltaERB’ from f1. |
gate(ramps, sig, fs) |
Impose onset and offset ramps to a sound. |
getRMS(sig[, channel]) |
Compute the root mean square (RMS) value of the signal. |
glide([freqStart, ftype, excursion, level, …]) |
Synthetize a rising or falling tone glide with frequency changing linearly or exponentially. |
harmComplFromNarrowbandNoise([F0, lowHarm, …]) |
Generate an harmonic complex tone from narrow noise bands. |
imposeLevelGlide(sig, deltaL, startTime, …) |
Impose a glide in level to a sound. |
intNCyclesFreq(freq, duration) |
Compute the frequency closest to ‘freq’ that has an integer number of cycles for the given sound duration. |
itdtoipd(itd, freq) |
Convert an interaural time difference to an equivalent interaural phase difference for a given frequency. |
joinSndISI(sndList, ISIList, fs) |
Join a list of sounds with given interstimulus intervals |
makeAsynchChord(freqs, levels, phases, …) |
Generate an asynchronous chord. |
makeBlueRef(sig, fs, refHz) |
Convert a white noise into a blue noise. |
makeHugginsPitch([F0, lowHarm, highHarm, …]) |
Synthetise a complex Huggings Pitch. |
makeIRN([delay, gain, iterations, …]) |
Synthetise a iterated rippled noise |
makePink(sig, fs) |
Convert a white noise into a pink noise. |
makePinkRef(sig, fs, refHz) |
Convert a white noise into a pink noise. |
makeRedRef(sig, fs, refHz) |
Convert a white noise into a red noise. |
makeSilence([duration, fs]) |
Generate a silence. |
makeVioletRef(sig, fs, refHz) |
Convert a white noise into a violet noise. |
nextpow2(x) |
Next power of two. |
phaseShift(sig, f1, f2, phaseShift, …) |
Shift the interaural phases of a sound within a given frequency region. |
pinkNoiseFromSin([compLevel, lowCmp, …]) |
Generate a pink noise by adding sinusoids spaced by a fixed interval in cents. |
pinkNoiseFromSin2([compLevel, lowCmp, …]) |
Generate a pink noise by adding sinusoids spaced by a fixed interval in cents. |
pureTone([frequency, phase, level, …]) |
Synthetise a pure tone. |
scale(level, sig) |
Increase or decrease the amplitude of a sound signal. |
setLevel_(level, snd, maxLevel[, channel]) |
Set the RMS level of a sound signal to a given value. |
spectralModNoise([spectrumLevel, duration, …]) |
Generate a broadband noise with a modulated spectral envelope. |
steepNoise([frequency1, frequency2, level, …]) |
Synthetise band-limited noise from the addition of random-phase sinusoids. |