On Sun, Aug 15, 2021 at 1:03 AM Chris Angelico <ros...@gmail.com> wrote: > > On Sun, Aug 15, 2021 at 1:02 PM John O'Hagan <resea...@johnohagan.com> wrote: > > > > > On 2021-08-13 17:17, Chris Angelico wrote: > > > > Is it really? In my experience, no human ear can distinguish 277Hz > > > > from 277.1826Hz when it's played on a one-bit PC speaker, which the > > > > Beep function will be using. > > > > Rounding to integer frequencies will produce disastrously out-of-tune > > notes in a musical context! Particularly for low notes, where a whole > > semitone is only a couple of Hz difference. Even for higher notes, when > > they're played together any inaccuracies are much more apparent. > > But before you advocate that too hard, check to see the *real* > capabilities of a one-bit PC speaker. You go on to give an example > that uses PyAudio and a sine wave, not the timer chip's "beep" > functionality. > > Try getting some recordings of a half dozen or so computers making a > beep at 440Hz. Then do some analysis on the recordings and see whether > they're actually within 1Hz of that. > > (And that's aside from the fact that quite a number of computers will > show up completely silent, due to either not having an internal > speaker, or not letting you use it.) > > ChrisA > -- > https://mail.python.org/mailman/listinfo/python-list
This thread got me curious, and I found this article. The code is very similar to the pyaudio version a few responses back. https://thehackerdiary.wordpress.com/2017/06/09/it-is-ridiculously-easy-to-generate-any-audio-signal-using-python/ except it doesn't need pyaudio I run Ubuntu 20.04, and I had problems getting pyaudio on my machine. -- Joel Goldstick -- https://mail.python.org/mailman/listinfo/python-list
