//-\ ]E i n d e x

notes on projects by m.d.
categories: arctic | cryptoart | radio | internet | art | crypto | debian | laser | physics | game | radioactive entropy | funk | ghostradio | hades | informationtheory | linux | linuxaudio | math | neuralnetworks noise | nonhuman | notes |particlephysics | rng |softwaredefinedradio | tools | underinfluence | vlf movie | book
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baudline_umm6:

parec --format=s16le --channels=1 --latency-msec=5 | ./baudline -stdin linuxaudio tools




debian10:

apt remove timidity

loest das soundproblem mit pulsaudio / no cards found

trackpoint beschleunigung

xinput --list --short
xinput --list-props "Elan TrackPoint"
xinput --set-prop 10 301 0.8000

schoen schnell fuer 2.5k displays, 1.0 ist max

debian linux tools




dev_random:

Do you have a radio? Tune it in between stations. Music is highly reproducible, and although DJ's may blabber at random they may be recorded (so reproducible) and any radio station in general is duplicated with care in the whole area of broadcast. Do not use the FM tuner of your radio, because FM is based on a beacon signal with the sounds wrapped around it -- in other words, the radio can recognise absence of a station and refuse to tune in, or adapt tuning to a nearby station. You want to use the AM tuner, which does not have these problems.
www.cypherpunks.to/~peter/06_random.pdf
http://www.linuxfromscratch.org/hints/downloads/files/entropy.txt

the best random number generators use radioactive decay as an entropy source

gpg definition: http://tools.ietf.org/html/rfc4880 das ist schon mal ein guter weg http://sublimated.wordpress.com/2007/08/28/not-enough-random-bytes-available/ /dev/random wird verwendet maex@bro:~$ cat /dev/random )����i���1����9�Ѭ$SLu�8y�;��_�M�>��D�HUb�1�\224bQ�?����\224���A|�?d������\206��\214�a�����.� +��Dc��@ l���o�g� ��\220�@�����,�I@���n�(b#�m���W��T M_��ԧ�'�tW�~    k��+9'�'?�so��.���\223���L��_U{-������^�v��KlR-��q��\212������^C maex@bro:~$ entropy noise rng




distance_meter_keyence_lv21a:

OKOK, general update, the lv21a isnt a distance sensor, although the lva display measures quite accurate the distance, BUT, the control output is just a switch, 11V 0V nothing inbetween. fails this is the distance sensor: manual: LV_H100_300_man.15391105 general manual: lv_general_kb circuit description between npn and pnp / lv21a and lv21ap: http://www.omron-ap.com/FAQ/FAQ02285/index.asp this is the laser diode switch manual: keyence_pz101_datasheet laser tools




distance_meter_leuze_ods:

http://www.leuze.de/products/los/mess/ods96/ods96a_en.html they ve serial and analog output laser tools




download:

wget https://yt-dl.org/downloads/latest/youtube-dl linux tools




exifdata:

exiftool -all= image.jpg
linux tools




gpg_revoke:

$ gpg --output revocation-certificate.asc --gen-revoke 86C30530


§ gpg --import revocation-certificate.asc

$ gpg --list-keys 86C30530


optional:
gpg --send-keys 86C30530 crypto linux tools




graphics_magic:

  als lib fuer quantenkino/ghostradio -> laut oliver laeuft die lib effizienter als imagemagick http://www.graphicsmagick.org/perl.html   linux tools




hardware:

[image] http://www.andregoncalves.info/ag_blog/?page_id=61 http://www.cooking-hacks.com/index.php/shop/arduino/pack-radiation-sensor-board-for-arduino-geiger-tube.html http://www.ebay.com/itm/1x-Russian-GEIGER-TUBE-COUNTER-SI-29BG-SBM-20-New-Box-/190723522117?pt=BI_Security_Fire_Protection&hash=item2c6801fe45 http://arduino.cc/en/Main/ArduinoBoardUno - - nur memo: http://www.libelium.com/wireless_sensor_networks_to_control_radiation_levels_geiger_counters/ - http://www.techlib.com/science/geiger.html vlf: http://www.techlib.com/electronics/vlfwhistle.htm http://www.vlf.it/easyloop/_easyloop.htm http://www.techlib.com/electronics/audioamps.html#curiously%20low%20noise http://nova.stanford.edu/~vlf/IHY_Test/TechDocs/AWESOMEDescriptionTalk/HardwareAWESOME.pdf physics tools radioactive vlf radio




head_mike:

http://www.soundman.de/ tools sound




invertierter_transistor_case_pyhaeoki:

memo: den letzten transistor im setup 180grad herum einbauen, ergibt einen schoenen sound. tools radioactive




minimal_gc_for_rng:

by erich berger [image] radioactive tools




og:

http://www.opengeiger.de/

https://hblok.net/blog/posts/2011/04/29/analysing-apache-logs-gnuplot-and-awk/

tools radioactive




php-search:

foreach (glob("*.txt") as $file){ $searchfor = $_GET["s"]; $contents = file_get_contents($file); $pattern = preg_quote($searchfor, '/'); $pattern = "/^.*$pattern.*\$/m"; if(preg_match_all($pattern, $contents, $matches)){ $file2 = substr($file, 0, -4); include($file); } } tools




pyo_python_dsp:

first code:
#!/usr/bin/python
from pyo import *

n = 0
s = Server(duplex=1)

s.setInputDevice(2)
s.boot()

inp = Input(chnl=[0], mul=0.5) # chnl=[0,1] for stereo input
b = Thresh(inp, threshold=0.4, dir=0)
ti = Timer(b, b)

def printer():
        global n
        n = n + 1

        print 'trigger', n , 'time', str(ti.get(all)).strip('[]')

tf = TrigFunc(b, printer)

t = LinTable([(0,0), (50,1), (250,.3), (8191,0)])
env = TrigEnv(b, table=t, dur=.5, mul=.3)
sine = Sine(freq=400, mul=env).out()

s.gui(locals())

first printouts with delta t between threshold triggers ( linear from an LFO ) trigger 1 time 0.0017687075305730104 trigger 2 time 0.0017687075305730104 trigger 3 time 0.01598639413714409 trigger 4 time 0.019999999552965164 trigger 5 time 0.0001360544265480712 trigger 6 time 0.0001360544265480712 trigger 7 time 0.014693877659738064 trigger 8 time 0.0056009069085121155 trigger 9 time 0.00018140589236281812 trigger 10 time 0.00018140589236281812 trigger 11 time 0.01984127052128315 trigger 12 time 0.005328798200935125 trigger 13 time 0.00018140589236281812 trigger 14 time 0.00018140589236281812 trigger 15 time 0.01807256229221821 trigger 16 time 0.019977323710918427 trigger 17 time 0.020022675395011902 trigger 18 time 0.019977323710918427 trigger 19 time 0.02013605460524559 trigger 20 time 4.535147309070453e-05 trigger 21 time 4.535147309070453e-05 trigger 22 time 0.014580498449504375 trigger 23 time 0.019977323710918427 trigger 24 time 6.80272132740356e-05 trigger 25 time 6.80272132740356e-05 trigger 26 time 0.019909296184778214 trigger 27 time 0.005351474042981863 trigger 28 time 0.014648525975644588 trigger 29 time 0.005056689493358135 trigger 30 time 0.014920635148882866 trigger 31 time 1.2613831758499146 trigger 32 time 0.004036281257867813 trigger 33 time 0.014943310990929604 trigger 34 time 0.020068027079105377 trigger 35 time 0.005215419456362724 trigger 36 time 0.014716553501784801 trigger 37 time 0.005374149885028601 trigger 38 time 0.01462585013359785 trigger 39 time 0.005374149885028601 trigger 40 time 0.01478458009660244 trigger 41 time 4.535147309070453e-05 trigger 42 time 4.535147309070453e-05 trigger 43 time 0.0052607711404562 trigger 44 time 0.014761905185878277 trigger 45 time 0.019909296184778214 trigger 46 time 0.019977323710918427 trigger 47 time 0.005238095298409462 trigger 48 time 0.014761905185878277 trigger 49 time 0.00528344651684165 trigger 50 time 0.01473922934383154 trigger 51 time 0.005328798200935125 trigger 52 time 0.014671201817691326 trigger 53 time 6.80272132740356e-05 trigger 54 time 6.80272132740356e-05 linux linuxaudio tools




python_dsp:

schaut ganz brauchbar aus die pydsp. lac.linuxaudio.org/2011/papers/40.pdf linux linuxaudio tools




quantumnoise:

ultra-low-light-dedection www.youtube.com/watch?v=25QBPaQftk8 > die wellenjaeger, a movie about german gravitation scientists lowering the noise of the sota photone sensors.   http://www.ndt.net/article/dgzfp04/papers/v60/v60.htm ++ http://www.quantenphysik-schule.de/dokumente/JuFoPhoton.pdf http://www.sensl.com/downloads/irp/2012_Li_SPM_Detection_Low_Level_Bioluminescence_Development_Deployable_Whole_cell_biosensors.pdf photodiode sensor > not usable [image] http://www.elektronik-labor.de/Projekte/Alpha.html https://de.wikipedia.org/wiki/Pin-Diode http://www.b-kainka.de/bastel131.html +avalanche photo diodes http://risorse.dei.polimi.it/spad/1996/App%20Opt%201996.pdf http://home.deib.polimi.it/cova/elet/Articoli%20e%20presentazioni/2013SPADlab_SSN.pdf https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-18-16-17448&id=204545 +smpd and electronics http://www.roithner-laser.com/pd_electronics.html http://www.roithner-laser.com/pd_avalanche.html http://www.lasercomponents.com/us/news/sap500-silicon-apds-for-photon-counting-applications-1/ http://www.hamamatsu.com/eu/en/index.html [image] photomultiplier: m-h7828e PMT_modules_TPMO0008E02 photon counting principles: http://users.df.uba.ar/bragas/Labo5_1er2011/PMT_photoncounting.pdf PMT_photoncounting + physicsopenlab.org/2016/03/03/light-as-particles/ PhotonCounter_ENG tools hades physics particlephysics




serial_com_arduino_puredata:

nice pd patch, works very well http://kiilo.org/tiki/tiki-index.php?page=Arduino-PureData-MessageSystem ArduinoPuredataMessageSystem (->localcopy) linuxaudio tools




videoeditor_linux:

wieder einer: http://www.openshot.org/download/ linux tools




xterm:

mem: xterm -fn 9x15 -fg yellow -bg black -sl 512 -maximized -u8   fullscreen geht auch xterm -fullscreen und fullscr und execute xterm -fullscreen -e ./xyz.sh         // opt. -hold linux tools