[Asterisk-Users] Woodpeckers

[Steve Underwood]

The left hand pedal on a church organ is around 16Hz. Below that things 
don't really sound like tones any more.

Regards,
Steve


Matt Lawson wrote:

> The low "B" string on a 5-string bass guitar is approx. 31 Hz....
>
>
>>>
>>>> A power spectrum plot will tell him he has a 60Hz hum. I think he 
>>>> already knows that. I think he can definitely consider solutions
>>>> without following your suggestion. :-)
>>>
>>>   
>>
>
>> No,  It's not a "60Hz hum".  Yes, 60Hz is getting into the line
>> but the existing filters are removing the 60hz.  What he hears
>> is most likely 120Hz, 240Hz or something else or most likely
>> a combination of various multiples for 60hz. 
>> I'd bet that the tiny speaker inside a telephone handset can not
>> even reproduce a 60Hz tome.  Yes you can hear a hum but it's
>> the overtomes of 60 that you hear.  Many people can not even hear
>> down to 60Hz, some can but not everyone.  
>