Show HN: 19 Tone Equal Temperament Piano in Web Audio • Hacker News Board

Re: Show HN: 19 Tone Equal Temperament Piano in Web Audio

#21

Post by jarmitage » Thu, Mar 31, 2016, 3:36 PM UTC

This library and web audio demo has 3000+ tuning systems:

https://github.com/abbernie/tune

It's part of the proceedings of the 2nd Web Audio conference which are now available:

Abstract: https://smartech.gatech.edu/handle/1853/54580

Proceedings: https://smartech.gatech.edu/handle/1853/54577/browse

Re: Show HN: 19 Tone Equal Temperament Piano in Web Audio

#22

Post by 6stringmerc » Thu, Mar 31, 2016, 4:22 PM UTC

Very clever and quite fun to poke around in, and educational with the whole math breakdown. Nicely done and glad to be able to play around with it. I'm tickled by the opportunities to play around with customary tones!

Z-R-V-Z-R-B-Z-R-N-Z-R-B-Z-R-V is a nifty little arrangement.

Re: Show HN: 19 Tone Equal Temperament Piano in Web Audio

#23

Post by kencausey » Thu, Mar 31, 2016, 6:15 PM UTC

abruzzi wrote: post #16

mattmanser wrote: post #10

There's a bug where if you mouse down and move the mouse out, the note plays indefinitely.

is that a bug? I was using that to hear chord, until I got to the bottom and saw I can also do it with my keyboard.

I agree, seemed like a feature to me.

Re: Show HN: 19 Tone Equal Temperament Piano in Web Audio

#24

Post by [deleted] » Thu, Mar 31, 2016, 8:04 PM UTC

biot wrote: post #19

s-phi-nl wrote: post #9

Earlier quoted context omitted.

There are some mathematical reasons. In particular, the two most consonant (best-sounding) intervals are the octave and the fifth. The frequencies of the two pitches in an octave have a ratio of 2.0, and the frequencies of the two pitches in a pure fifth have a ratio of 1.5. We would like the pitches we obtain from powers of these two ratios (stacking these intervals on top of each other) to be the same. However, sin…

The TED video on the pentatonic scale by Bobby McFerrin is worth watching. Only 3 minutes long: http://youtu.be/ne6tB2KiZuk

[deleted]

Re: Show HN: 19 Tone Equal Temperament Piano in Web Audio

#25

Post by hatsunearu » Fri, Apr 01, 2016, 3:51 PM UTC

The tones in the piano don't have a lot of harmonic content (at least what I can hear from my ears), and if there are more harmonics the beating of the harmonics can be more easily heard. Just a suggestion.