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    0t  online tone generators? how acurate are they?


    Phil-G's Avatar
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    0t online tone generators? how acurate are they?

    online tone generators? how acurate are they?
    i tried one out tonite. and on the subwoofer test my a7s were still loud at around 40 hz. from what i was reading here they should have trailed off at 70 or 90. ??

    http://onlinetonegenerator.com/
    Last edited by Phil-G; August 14th, 2013 at 11:58 PM.
    Sonic Barbarian

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    0t  online tone generators? how acurate are they?


    Alien_Shore's Avatar
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    Re: 0t online tone generators? how acurate are they?

    I did a spot check at several frequencies of the one you have listed there and it checks out OK. Didn't put a scope on it for distortion, etc., but the tones sound accurate enough.

    [edit] that's actually a pretty cool site; did some exploring there with the various tests they have. my old ears are definitely are beat to hell.
    Last edited by Alien_Shore; August 15th, 2013 at 12:58 AM.
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    Senior Hostboard Member donaldpatten's Avatar
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    Re: 0t online tone generators? how acurate are they?

    I have had good luck with several tone gen's. Some only sweep but you can get around this by sweeping from and to the same freq.
    Don

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    0t  online tone generators? how acurate are they?


    Old Guy's Avatar
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    Re: 0t online tone generators? how acurate are they?

    At 40 HZ you are hearing a lot of harmonics. The generator produces a pure tone, the speaker doesn't.
    Just because the dial says 40 does not mean you are hearing 40
    Your neighbors called. They like your music.

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    Senior Hostboard Member mah's Avatar
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    Re: 0t online tone generators? how acurate are they?

    OG, try several sites and go for for similar results.

    http://www.audiocheck.net/
    Opinion is only as valid as its verifiable supporting evidence.

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    0t  online tone generators? how acurate are they?


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    Re: 0t online tone generators? how acurate are they?

    Quote Originally Posted by Old Guy View Post
    At 40 HZ you are hearing a lot of harmonics. The generator produces a pure tone, the speaker doesn't.
    Just because the dial says 40 does not mean you are hearing 40
    that sounds about right. i'll need to get a mic and check it with an analyzer at the same time. this would be a good way to weed out problems. i didn't try the program with the sub yet. i could hopefully get an idea of what it should sound like.
    Sonic Barbarian

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    Re: 0t online tone generators? how acurate are they?

    Quote Originally Posted by Old Guy View Post
    At 40 HZ you are hearing a lot of harmonics. The generator produces a pure tone, the speaker doesn't.
    Just because the dial says 40 does not mean you are hearing 40
    From where? As you noted, the tone generator isn't creating any harmonic structure [or at least not supposed to], so assuming no EQ is being used, then seems like only room/boundary gain can account for the lack of an obviously shelved LF with any of the reflex vented horns.

    GM
    Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

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    0t  online tone generators? how acurate are they?


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    Re: 0t online tone generators? how acurate are they?

    If you put a 40 Hz sine wave in you get more than that out of a speaker.

    Yes room gain covers a lot. But would like to see what test gear says.
    Your neighbors called. They like your music.

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