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Posted by nappy on 04/06/07 00:09
"Eric B." <bigbird@sesamestreet.com> wrote in message
news:46157d9f$0$24775$4c368faf@roadrunner.com...
>I downloaded it and took a look at it in Sound Forge. there is some weird
>comb filtering going on, two signals @ at 120hz being modulated by an even
>lower frequency. Nothing that can be easily notched out I'm afraid. Good
>news is it is very low volume.
>
> Eric B.
Doh! Use a pair of notch filters or a high pass..
>
> "Carl Zwanzig" <zbang@radix.net> wrote in message
> news:131areaosihp36c@corp.supernews.com...
>> P.C. Ford <meoh@mouse-potato.com> wrote:
>>
>>>Ok, guys thanks for the quick replies. I have tried the notch filter
>>>and any progress seems subtle at best. Can't seem to find a "sweet
>>>spot" on frequency.
>>
>> I'd be rather surprised if it's not an odd harmonic of 60 Hz, or a mix
>> of them.
>>
>> Also, check out audacity for this, it has a nice set of filters and it's
>> free.
>>
>> z!
>>
>
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