make 1 second length random wave sound (PCM) file.

make_random_wav_sound.py

import random

def get_wave_data():
    s =  "52494646"             # RIFF
    s += "88580100"             # subchunks. 88,200 in hex, little-endian
    s += "57415645"             # "WAVE" chunk identifier
    s += "666d7420"             # "fmt " chunk identifier
    s += "10000000"             # length of chunk, 16
    s += "0100"                 # format code (PCM)
    s += "0200"                 # channel
    s += "22560000"             # sample rate. 22,050 in hex, little-endian
    s += "88580100"             # byterate.
    s += "0400"                 # block align
    s += "1000"                 # bits per sample (16)
    s += "64617461"             # "data" start of chunk
    s += "88580100"             # length of chunk. 88,200
    for i in range(88200):
        s += f"{random.randint(0,255):02x}"
    i = 0
    while True:
        subt = s[i:i+2]
        if not subt:
            break
        yield subt
        i += 2

wave_data = list(get_wave_data())

f = open("test.wav", "wb")
for c in wave_data:
    f.write(bytes((int(c, 16),)))
f.close()

@nethomas1968 / yeah new formatting as of py3.6 :)

Hi, thanks, also can you explain these lines please:
s += "88580100" # 88,236 in decimal
s += "88580100" # 88200 in decimal

Cheers.

updated comments. refer to https://en.wikipedia.org/wiki/Resource_Interchange_File_Format