<div class="gmail_quote">On Sun, Apr 25, 2010 at 1:44 PM, Tõnno Vähk <span dir="ltr"><<a href="mailto:Tonno.Vahk@gafm.ee">Tonno.Vahk@gafm.ee</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">I was trying to figure out what is the system of naming
the MP3 files by Recorder and how to assign a recording to a STN. There is no info
on that anywhere as much as I see.</span></p></div></div></div></div></blockquote><div>The station name (e.g. "STN1", or "Shack") is recorded in the header of the MP3 file itself. If you open filename.WT4, Win-Test looks at filename-000.MP3, filename-001.MP3, etc.. <i>Contest </i>name (not file name) and year are also recorded in the MP3 header, and everything must match or Win-Test use it (mode, year, station name).<br>
<br>I wrote a program to dump the contents of the MP3 header. Here is what I found:<br><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">mp3File = sprt1002-000.mp3</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">ID3size = 48145</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Callsign = N6TV</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">Contest & File = NA Sprint CW 000</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Station = Shack</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">Year = 2010</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Publisher = <a href="http://www.win-test.com">http://www.win-test.com</a></span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">Owner = <a href="mailto:id3v2-timesync@win-test.com">id3v2-timesync@win-test.com</a></span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">PRIV data size = 48028</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> Layer: Layer III</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> ID3v2: True</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> Frequency Sampling Rate: 32000</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> Channel Mode: Joint Stereo</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> Copyright: True</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> VersionID: MPEG Version 1</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> Emphasis: None</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> Bitrate: 96</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> Original: True</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">1265500168 2010-02-06 23:49:28 02</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">1265500468 2010-02-06 23:54:28 3593465</span><br>...<br><br>The last two lines represent a timestamp (Unix time) and an offset within the MP3 file; it is recorded by Win-Test every 5 minutes. Without this header info., Win-Test won't use the MP3 file.<br>
</div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div link="blue" vlink="purple" lang="EN-US"><div><div><div>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">Can someone explain the system of the names. What are the
obligatory parts of the MP3 file name? How does WT link a certain file to a
certain station? </span></p></div></div></div></div></blockquote><div>Station name is recorded in every QSO of the .WT4 file, and also the header (once) of the .MP3 file. The suffix -001.mp3, -002.mp3, etc. is added to contest file name form the name of the .MP3 file.<br>
</div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div link="blue" vlink="purple" lang="EN-US"><div><div><div><p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">I need this when I use separate computer for recording and
want to assign to the MP3 file to QSOs of a particular station later.</span></p></div></div></div></div></blockquote><div>You cannot merge the recordings from two different stations into a single .MP3 file. But Win-Test records station name on every QSO (in the .WT4 file), so it can find which MP3 file (-000, -001, -002 etc.) recorded that QSO.<br>
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<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);"> With my testing I found that in order for WT to accept existence
of a recording the minimum name is – 1_000.MP3. Can’t leave out any
of the zeros or “_” and first sign has to be number! What does this
mean?</span></p></div></div></div></div></blockquote><div>It means the the files are created in sequence, -000.mp3, -001.mp3, etc., or if you only have one .mp3 per station you can rename them -002.mp3, -003.mp3 etc. and Win-Test will open them.<br>
<br>For example if STN1 created cqww09-001.mp3 and STN2 also created a different file with the same name, and both computers were networked so the log has QSOs from both stations, just rename cqww09-001.mp3 to cqww09-002.mp3 and copy it to the other computer, and locate it in the same directory.<br>
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<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">And secondly – the log file has to be named then 1_.wt4 (whatever
is before 000!), otherwise the sound file will be recognized and played but as
soon as you try to rewind or forward WT crashes.</span></p></div></div></div></div></blockquote><div>If you can you make Win-Test crash without renaming any files, please describe step by step how to do it, and open a bug report at <a href="http://bugs.win-test.com">http://bugs.win-test.com</a>.<br>
</div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div link="blue" vlink="purple" lang="EN-US"><div><div><div>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);"> I had recordings on two stations and both are located in the
same log directory and if I name log file 1_.wt4, STN1 recording 1_000.MP3 and
STN 2 recording 2_000.MP3 then I can nicely play from one log both files respectively
to which station had the QSO and I can rewind and forward.</span></p></div></div></div></div></blockquote><div>You could use more reasonable names like cqww09cw.wt4, cqww09cw-001.mp3, cqww09cw-002.mp3. <br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">When I change the names of recordings or log file, WT recognizes
still files (but crashes at rewind or forward attempt). And even if I swap the
names it sill knows which recording is for STN1 and STN2 – how does he
know that??? In other words – can I take any MP3 file and assign it as
recording of one station or not?</span></p></div></div></div></div></blockquote><div>No, because the station name is recorded in the MP3 file header, <i>once</i>. Make the first part of the file name the same, and let the suffix be -001, -002 (not an underscore, but a dash). Win-Test should use the correct .MP3 file to play back each QSO. But it is understandable that rewinding may not work if it has to jump back and forth between .MP3 files recorded on two computers when QSOs at a multi are interleaved in the log. So it's safer to jump to the QSO rather than to rewind and fast forward when you have two .MP3 files to play back from one log.<br>
<br>73,<br>Bob, N6TV<br></div></div><br>