Test audio file for ThereminoMCA
Files provided by Steven Sesselmann ( Variety Spectacular )
GS1100A-48khz _ CS137_1000pps (PCM – 16 bit – Mono – 48 KHz – 1 min. – 6 Megabytes)
GS1100A_Cs_Ba.zip (PCM – 16 bit – Mono – 192 KHz – 5 min. – 36 Megabytes)
GS1100A_Radium.zip (PCM – 16 bit – Mono – 192 KHz – 9 min, – 49 Megabytes)
A file with the user's Radio “oe8uww” GammaSpectrometry forum: https://docs.google.com/open?id=0B6CmPcoavHwjWGRkLVE3WUtyRG8
Send your test to audio files: firstname.lastname@example.org you will help to develop the ThereminoMCA and make it work better on your hardware.
Audio files must have a short name that is meaningful and follow the following rules.
ITALIAN LANGUAGE: The perfect audio files:
– main features in a short name like: “Robert_GS-1100A_Cs -137 _ K40”
– sample of Cesium at the right distance to produce approximately 100..200 pulses per second
– If possible also Americium to generate a third calibration point (must be away for about 30 cm approximately 150 ' ' for not making too high or low peaks compared to those of Cesium)
– with high energy pulses not saturated
– encoded as “PCM Signed Mono”
– with samples at 16 bit (not at 32 bit !!!)
– registered to 192 KHz (or 144, 96, 48 but only if they are wide enough not to produce ringing)
– along about 10 minutes and shortened if you can't compress it below 15 Mega Bytes
– compressed with 7Zip for maximum compression possible
After preparing this file you can also compress to MP3, reducing it to approximately 10 times (try with: “Layer3, 48000 Hz 128 Kbps, Mono” and check if the FWHM of caesium is not degraded) Further tests showed that with certain types of signal MP3 not good and greatly degrades the curve, so check them out well and compare the curves.
ENGLISH: The perfect test file:
– a short and meaningful name like: “Robert_GS-1100A_Cs -137 _ K40”
– cesium at the right distance to produce about 100..200 pulses per second
– maybe Americium to provide a third trimming point (must be about 30cm to 150 cm to balance the height of the Cesium and Americium main peaks)
– with high energy peaks not saturated
– codified as PCM Signed Mono
– 16 bit (not 32 bit !!!)
– recorded at 192 KHz (or 144, 96, 48 but only if they are large enough to avoid ringing)
– about ten minutes long but shortened if can not be compressed below 15 Mega Bytes
– compressed with 7Zip to reduce more possible
After preparing this file it is also possible to compress with MP3, reducing it by about 10 times (try: “Layer3, 48000 Hz 128 Kbps, Mono” and test if the FWHM of the cesium is degraded) Further tests have shown that with certain types of signal, the MP3 format is not OK and greatly degrades the curve, so test them and compare the curves.
Immagini dal file: Alex-Ra226 _ 5_Nov
Radium – Plywood – This is the same file setup Alex-Ra226 _ 5_Nov but the League for 30 minutes.
Radium – Not compensated – Without clearing the strong x-ray peak at about 50KeV lowers very the other peaks. It's always the same file setup Alex-Ra226 _ 5_Nov but the League for 30 minutes and without compensation.–
Radium – Compensated for this file Alex-Ra226 _ 5_Nov of only 3 minutes. Due to its short length, and also revising the file several times, remains always noisy, It would take at least ten minutes file.
You download from here: https://docs.google.com/open?id=0B6CmPcoavHwjWGRkLVE3WUtyRG8
He wrote that with Theremino this file does not work but there were no problems to properly display all peaks of radio. With both positive impulses, both with negative impulses. (the pulses were folded up with the program GoldWave) Then we can assure him that this is not the pulse polarity but something that is dependent on its calibration data or sound card.
Immagini dal file: GS1100A_Cs_Ba.zip
Cesium and Barium with ThereminoMCA V 3.0 – Notice the 5.9% and the great improvement in the area from 150 to 300 Kev
Immagini dal file: GS1100A_Radium.zip
The file: GS1100A_Radium.zip with MCA V 4.2
The same file as the previous image but with the new “Resolution compensation”
In red without compensation, Green has greatly increased the resolution compensation.