Hi,

Its super simple, I'm outputting 440 Hz sine wave (note A4) and 349 Hz sine wave (F4) as a .wav file and they're sounding normal everything is fine. But when I add them up and using .wave on the resulting wave, the sound is very squeaky. Even the FFT seems fine.

Could the problem be the sampling rate or the number of bits?

 

hi 505,
This is what I hear sounds OK to me.

Delete the .txt extension to .wav, required to enable a wav upload to the Thread

E

Added the modified asc file, so anyone can run the sim, not using your personal wave pathways

 

-80dB is a very low level sound, unless the fundamental frequencies are blasting.