Incorrect pitch on mobile devices

[earboxer]

See rism-digital/midi-player#21

This also applies on http://zz85.github.io/wild-web-midi, but not when "Run WAV Converter" is used.

[14725]

At least for this one...

wild-web-midi/web_audio_player.js

Line 72 in 1800e92

audioCtx = new window.AudioContext();

if we change it into

   audioCtx = new window.AudioContext({sampleRate:SAMPLE_RATE});

it will work, at least on my PC.

However the MDN says that the support of 'sampleRate" for AudioContext starts from Chorme 74. Is the support came early enough so that we can apply it safety?

[efreja]

Tested this fix in rism-digital/midi-player, and it solves the problem. Thanks!