Synth functions
class synth
The synth class provides basic sound synthesis functionality.
Example:
# Generate and play a simple tone
from openexp.synth import synth
my_synth = synth(exp, osc='saw', freq='b2', attack=250, length=500)
my_synth.play()
Function list:
- function synth.__init__(experiment, length=100, osc=u’sine’, attack=0, freq=440, decay=5)
- property synth.is_playing
- function synth.key_to_freq(key)
- property synth.pan
- property synth.pause
- property synth.pitch
- property synth.play
- property synth.resume
- property synth.stop_after
- property synth.volume
- property synth.wait
function synth.__init__(experiment, length=100, osc=u’sine’, attack=0, freq=440, decay=5)
Initializes the synthesizer.
Example:
from openexp.synth import synth
my_synth = synth(exp, freq='b2', length=500)
Arguments:
experiment– The experiment object.- Type: experiment
Keywords:
osc– Oscillator, can be “sine”, “saw”, “square” or “white_noise”.- Type: str, unicode
- Default: ‘sine’
freq– Frequency, either an integer value (value in hertz) or a string (“A1”, “eb2”, etc.).- Type: str, unicode, int, float
- Default: 440
length– The length of the sound in milliseconds.- Type: int, float
- Default: 100
attack– The attack (fade-in) time in milliseconds.- Type: int, float
- Default: 0
decay– The decay (fade-out) time in milliseconds.- Type: int, float
- Default: 5
property synth.is_playing
See sampler.is_playing.
function synth.key_to_freq(key)
Converts a key (e.g., A1) to a frequency.
Example:
from openexp.synth import synth
my_synth = synth(exp)
print('An a2 is %d Hz' % my_synth.key_to_freq('a2'))
Arguments:
key– A string like “A1”, “eb2”, etc, or a numeric frequency (in which case the frequency is simply returned as a float).- Type: str, unicode, int, float
Returns:
A frequency in hertz.
- Type: float
property synth.pan
See sampler.pan.
property synth.pause
See sampler.pause.
property synth.pitch
See sampler.pitch.
property synth.play
See sampler.play.
property synth.resume
See sampler.resume.
property synth.stop_after
See sampler.stop_after.
property synth.volume
See sampler.volume.
property synth.wait
See sampler.wait.
