who wants to explain signal to noise...

Discussion in 'Microphones (live or studio)' started by jcnoernberg, Jul 11, 2004.

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  1. jcnoernberg

    jcnoernberg Guest

    can one of you experts explain signal-to-noise ratios, like why exaclty peak levels are at -db, what about spl? I have a pretty good concept of them all, but no idea how they interconnect, or why they are really important. thanks!
  2. Kurt Foster

    Kurt Foster Distinguished Member

    Jul 2, 2002
    77 Sunset Lane.
    Typically, SPL is measured by a sound meter after a signal has been amplified and played through a speaker and has no direct correlation to any level within the system other than louder and quieter .... dB's are used often to express a value while the signal is still an electrical impulse at line level although SPL is expressed in terms of dB's .. .

    Signal to noise ratio is the difference between the noise floor, a systems self noise at idle, with the fader set a unity gain and the loudest sound the system is capable of reproducing at a specified distortion figure.

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