Hi Folks,  I tried Larry's program and it works very well.   There are times 
when I get  a spike, and I would like to remove it.   This is a neat tool, 
for me.   Thanks Larry.
Ted


----- Original Message ----- 
From: "Larry Conklin" 
To: 
Sent: Wednesday, June 03, 2009 9:45 AM
Subject: Re: Event file editor


> Hi Bob,
>
> A spike is a spike in the eye of the beholder.  There is nothing automatic 
> or analytical in the program.  I just look at the data in Winquake, and if 
> there are obvious transients that I want to get rid of the tool gives me a 
> convenient way to zero them out.  Most of the transients I want to 
> eliminate are caused by my wife walking into the room directly above my 
> sensor.  The result is a very large walk-up transient.  Since she only 
> goes in there to feed the cat, I call these events "catastrophies".  There 
> isn't any doubt about their legetimacy.
>
> Larry
>
>
> Bob Hancock wrote:
>> Sounds nice, but what is the logic that you are using to determine it is 
>> a "spike" and not a seismic wave?  In addition a "spike" may be 
>> simultaneous with a seismic wave, how does the logic make a separation?
>>
>> Bob Hancock
>>
>>
>> On Jun 3, 2009, at 7:40 AM, Larry Conklin wrote:
>>
>>> A couple of weeks ago, someone asked whether there was a convenient way 
>>> to edit spurious spikes out of an event data file.  Since I have the 
>>> same problem, I decided to write a simple little program for editing 
>>> PSNTYPE4 event data files.  The program prompts for the start and end 
>>> times of the segment you want to edit and replaces the offending data 
>>> samples with zeros.  Not very fancy, but it works.  If anyone would like 
>>> a copy of the tool and/or the source code, I would be happy to send it 
>>> to you.
>>>
>>> Larry Conklin
>>> Liverpool, NY
>>> lconklin@............
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