Is there a way to detect audio frequency in HTML 5 web audio API?
问题 I would like to know is there a way we can detect audio frequency from microphone in html 5 web audio. I wish to make an online guitar tuner, and I need to have the audio frequency in hertz, from the sound input. I've seen some EQ and filters effects, but I didn't see anything about frequency recognition. EDIT: I found this: http://www.smartjava.org/content/exploring-html5-web-audio-visualizing-sound The 2nd point (analyser node) is really interesting. I seen his source code, but I can't