This post has been de-listed
It is no longer included in search results and normal feeds (front page, hot posts, subreddit posts, etc). It remains visible only via the author's post history.
The range of human hearing is about 12 Hz - 20 kHz. Audio is encoded in mp3 and other formats up to about 44 kHz; audio encoding that cuts off sound above, say, 40 kHz, is considered "lower quality" and the difference can be noticeable.
I haven't studied sound nor have I gotten to Fourier analysis, but it is my understanding (correct me if I'm wrong) that a sound wave can be decomposed into a sum of sines/cosines of various frequencies; if that is the case, there shouldn't be interference between waves of different frequencies, no? In that light, why is audio encoded up to 44 kHz or so and why is it noticeable when it isn't?
Subreddit
Post Details
- Posted
- 13 years ago
- Reddit URL
- View post on reddit.com
- External URL
- reddit.com/r/askscience/...