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Details on signal to noise ratio(snr)

#1
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4/11/08 at 1:19am
  • Joined: April 2008
  • Post Count: 11
Hi. this my first post, and i would like to pre-announce that i am not an expert in acoustics and electronics(though it may sound ironic compared to my username).
my question is,
What is actually snr? Should the figures be greater or smaller for better performance?Some info please.
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#2
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4/11/08 at 3:18am
  • Joined: June 2002
  • Post Count: 393

Re: Details on signal to noise ratio(snr)

I'm not an audio pro either, but SNR pops up in a lot of places. It typically is just a ratio of signal strength over background noise. Higher is usually better. e.g. If you had an amp with a very low SNR, it would not be able to produce signals you want (like a guitar) at volumes that are a lot higher than the background noise (i.e. static) you don't want. I've heard people call amps with low SNR "hissy" and amps with high SNR "quiet".
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#3
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4/11/08 at 5:18am
  • Joined: June 2000
  • Location: Colorado
  • Post Count: 7,519

Re: Details on signal to noise ratio(snr)

Why do you want to know? Signal to noise is typically a useless spec. Very little equipment, and only the absolute crap has any really noticeable noise these days. Now, back in the days of cassette recorders, it was useful.


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