Generating sine wave sound in Python

Question

I need to generate a sine wave sound in Python, and I need to be able to control frequency, duration, and relative volume. By \'generate\' I mean that I want it to play thou

Answer 1

The script from ivan_onys produces a signal that is four times shorter than intended. If a TypeError is returned when volume is a float, try adding .tobytes() to the following line instead.

stream.write((volume*samples).tobytes())

@mm_ float32 = 32 bits, and 8 bits = 1 byte, so float32 = 4 bytes. When samples are passed to stream.write as float32, byte count (duration) is divided by 4. Writing samples back .tobytes() corrects for quartering the sample count when writing to float32.