PSN-L Message - Subject: Re: Digest from 07/09/2007 00:00:06

I still have a copy of that program, and use it daily to generate 24 hr. helicorder plots from my data files. It is a very nice program written, I believe, by Arie Verveer (sp?). If it can't be found elsewhere, I would be happy to send a copy to anyone who is interested. Larry Conklin Liverpool, NY lconklin@............ Randy wrote: > Hi, > > A couple of years ago one of the PSN members offered a program called > 'RECENT' that created filtered displays and helicorder type output in HTML > format. A side function was to create a sound file from the event with > control of playback rate. It worked quite well. I don't know if it is > available somewhere but if not I think I could find a copy somewhere in my > files. The program operates in a batch mode and is quite easy to use. > > Randy > > ----- Original Message ----- > From: > To: > Sent: Tuesday, July 10, 2007 02:01 > Subject: Digest from 07/09/2007 00:00:06 > > >> .------ ------ ------ ------ ------ ------ ------ ------ ------ ------. >> | Message 1 | >> '------ ------ ------ ------ ------ ------ ------ ------ ------ ------' >> Subject: Re: FFT Waterfall Display >> From: "Michael Kimzey" >> Date: Mon, 09 Jul 2007 08:23:35 -0400 >> >> >>> The Cornell Lab of Ornithology offers a free program for displaying >>> waterfall spectrograms of WAVE format sound files, which although > intended >>> primarily >>> for the study of bird songs, would be useful for earthquakes as well. > All >>> you >>> have to do is convert your event files to 16-bit monaural WAVE format > and >>> use Cornell's "Raven Lite 1.0" application. It is free, and can display >>> spectrograms in color or black-and-white. See: >>> >>> _http://www.birds.cornell.edu/brp/raven/Raven.html_ >>> (http://www.birds.cornell.edu/brp/raven/Raven.html) >>> >> Ok, so that begs the question, how do we convert an event to a 16 bit wave >> file? Actually, this is a question that has more implications, as some >> gentleman actually took USGS data and did convert it to a wave file, then >> sped it up and is using it as an art exhibit. See: >> http://www.jtbullitt.com/index.html >> So, if anyone knows how to convert events, or even WinSDR data to a "wave" >> file, it can be sped up and I think that one day's worth was approximately > 4 >> minutes of sound. >> Interesting. >> >> - Mike >> >> >> >> >> .------ ------ ------ ------ ------ ------ ------ ------ ------ ------. >> | Message 2 | >> '------ ------ ------ ------ ------ ------ ------ ------ ------ ------' >> Subject: Re: FFT Waterfall Display >> From: Bobhelenmcclure@....... >> Date: Mon, 9 Jul 2007 22:48:01 EDT >> >> >> -------------------------------1184035681 >> Content-Type: text/plain; charset="US-ASCII" >> Content-Transfer-Encoding: 7bit >> >> The WAVE format is described at: >> >> _http://www.borg.com/~jglatt/tech/wave.htm_ >> (http://www.borg.com/~jglatt/tech/wave.htm) >> >> The header data is 44 bytes long, and the remainder of the file >> consists usually of 16-bit data samples. >> __________________________ >> | RIFF WAVE Chunk | >> | groupID = 'RIFF' | >> | riffType = 'WAVE' | >> | __________________ | >> | | Format Chunk | | >> | | ckID = 'fmt ' | | >> | |__________________| | >> | __________________ | >> | | Sound Data Chunk | | >> | | ckID = 'data' | | >> | |__________________| | >> |__________________________| >> >> The PSN TYPE 4 file format is described at: >> >> _http://www.seismicnet.com/psnformat4.html_ >> (http://www.seismicnet.com/psnformat4.html) >> >> If you know how to program in QuickBasic, Visual Basic, or C the above >> documents provide enough information for writing an application to > convert PSN >> files to WAVE format. I could easily add this function to my > WQFilter.exe >> utility, but don't presently have the ambition to do so. Sorry about > that. >> Bob >> >> >> >> ************************************** See what's free at > http://www.aol.com. >> -------------------------------1184035681 >> Content-Type: text/html; charset="US-ASCII" >> Content-Transfer-Encoding: quoted-printable >> >> >> >> >> >> FONT-FAMILY:=20= >> Arial"=20 >> bottomMargin=3D7 leftMargin=3D7 topMargin=3D7 rightMargin=3D7> id=3Drol= >> e_document=20 >> face=3DArial color=3D#000000 size=3D2> >>

The WAVE format is described=20 >> at:

> href=3D"http://www.borg.com/~jglatt/tech/wave.htm">> face=3D"Courier > New">http://www.borg.com/~jglatt/tech/wave.htm> IV> >>

The header data is 44 bytes long, and > the=20 >> remainder of the file
consists usually of 16-bit data samples.=20 >>
__________________________
| RIFF WAVE=20 >> Chunk        > |
|  =20 >> groupID =3D 'RIFF'      |
|   > ri= >> ffType=20 >> =3D 'WAVE'      |
|   =20 >> __________________    |
|   | Format=20 >> Chunk     |   |
|   > | ckID=20= >> =3D=20 >> 'fmt '   |   |
|  =20 >> |__________________|   |
|   =20 >> __________________    |
|   | Sound Data > Chunk=20 >> |   |
|   | ckID =3D 'data'  =20 >> |   |
|   |__________________|  =20 >> |
|__________________________|

The PSN TYPE 4 file format is > describ= >> ed=20 >> at:

> href=3D"http://www.seismicnet.com/psnformat4.html">> face=3D"Courier > New">http://www.seismicnet.com/psnformat4.html> IV> >>

If you know how to program in > QuickBa= >> sic,=20 >> Visual Basic, or C the above documents provide enough information for > writin= >> g an=20 >> application to convert PSN files to WAVE format. I could easily add > th= >> is=20 >> function to my WQFilter.exe utility, but don't presently have the ambition > t= >> o do=20 >> so. Sorry about that.

New">Bob

> T style=3D"color: black; font: normal 10pt ARIAL, SAN-SERIF;">

style=3D"M= >> ARGIN-TOP: 10px">See what's free at title=3D"http://www.aol.com?ncid=3DAO= >> LAOF00020000000503" > href=3D"http://www.aol.com?ncid=3DAOLAOF00020000000503"=20= >> target=3D"_blank">AOL.com.

>> >> -------------------------------1184035681-- >> >> >> __________________________________________________________ >> >> Public Seismic Network Mailing List (PSN-L) >> >> To leave this list email PSN-L-DIGEST-REQUEST@.............. with >> the body of the message (first line only): unsubscribe >> See http://www.seismicnet.com/maillist.html for more information. >> > __________________________________________________________ > > Public Seismic Network Mailing List (PSN-L) > > To leave this list email PSN-L-REQUEST@.............. with > the body of the message (first line only): unsubscribe > See http://www.seismicnet.com/maillist.html for more information. > __________________________________________________________ Public Seismic Network Mailing List (PSN-L)

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