/Python/Python generate sine wave pyaudio

Python generate sine wave pyaudio

import pyaudio
import numpy as np

p = pyaudio.PyAudio()

volume = 0.5     # range [0.0, 1.0]
fs = 44100       # sampling rate, Hz, must be integer
duration = 1.0   # in seconds, may be float
f = 440.0        # sine frequency, Hz, may be float

# generate samples, note conversion to float32 array
samples = (np.sin(2*np.pi*np.arange(fs*duration)*f/fs)).astype(np.float32)

# for paFloat32 sample values must be in range [-1.0, 1.0]
stream = p.open(format=pyaudio.paFloat32,
                channels=1,
                rate=fs,
                output=True)

# play. May repeat with different volume values (if done interactively) 
stream.write(volume*samples)

stream.stop_stream()
stream.close()

p.terminate()

Source: stackoverflow.com

Similar codes

7 votes201 views1 answer
Import settings
Python
1 vote195 views1 answer
Python - count values that contain special characters
Python
1 vote190 views2 answers
Python selenium hover over element
Python
0 vote191 views2 answers
How to Send WhatsApp API using python
Python
1 vote195 views1 answer
Distribution plot with curve python
Python
0 vote185 views1 answer
Pysft connection drop issue
Python
0 vote366 views3 answers
Django forms I cannot save picture file
Python Django
-2 votes204 views6 answers
List comprehension in python
Python
5 votes199 views5 answers
Convert dictionary keys to list python
Python
0 vote206 views1 answer
Hover show all Y values in Bokeh
Python