Hello good people of the community,
I just wanted to share with you a small Python utility that I wrote. It's simple but very useful. It reads a .WAV file (Mono, 16bit, 48khz) and spits out the first 1024 frames as a list/array that you can simply copy/paste your your table 16b block. I use it for pre-loading an impulse response without having to fetch it from an SD Card.
Since I can't upload the .py file here, I'll simply copy the copy to a preformatted text box here:
import wave
import tkinter as tk
from tkinter import filedialog, messagebox
def conv_int(num):
if num > 32768:
return -(65536 - num)
else:
return num
def main():
root = tk.Tk()
root.withdraw()
file_path = filedialog.askopenfilename()
wave_obj = wave.open(file_path, mode='rb')
# Is WAV file mono?
if wave_obj.getnchannels() == 1 and wave_obj.getsampwidth() == 2:
# Issue warning if not 48khz
if wave_obj.getframerate() != 48000:
print('Warning: Sample Rate not 48000.')
# Issue Warning for too long
if wave_obj.getnframes() > 1024:
print('Warning: Impulse WAV file is too long, it will be truncated at 1024 samples.')
# Print Info
print(f'WAV File info: {wave_obj.getparams()}\n')
# Read WAV byte content
byte_content = wave_obj.readframes(1024)
# Convert those into 16bit INTs
list_16bits = [byte_content[i + 1] << 8 | byte_content[i] for i in range(0, len(byte_content), 2)]
for index, num in enumerate(list_16bits):
num = conv_int(num)
print(f'array[{index}]={num};')
# WAV file not mono.
else:
print('WAV file must be mono/one channel and 16 bit format.')
messagebox.showinfo(title='Information', message='Done, please copy the output of the console to your table 16b object now.')
main()Let me know if it useful for you, cheers!
Marc aka Khorus