analog hd

thisisaobjectibuildforaexhibitionthatwasorganizedforthe77thbirthdayofpaulpanhuysentheexhibitionwebsitecanbefoundhere

paulpanhuysenseemstolikeabstractanddronysoundsandwhenivisitedhiminoticedhealsolikesthesongofbirdsthedeviceimadecanmakebothdronysoundsandhighfrequencybirstsofarpegiatingtonessoithoughtitfitsquitewellitcanalsophysicalmoveandthesoundsitmakeschangewhenyoumovetheobjectandforsomereasonialsothinkthisfits

originalytheideaforthisdevicecamewhenhelpingastudentatthemerzacademyincreatingasynthfromaharddiscinthebeginingoftheworkshopishowedthisvideoandalsohowtomakeasinewaveoscillatorfromthehdthenthestudentfoundthistutorialinmakingarotaryencoderfromaoldharddisc

lookingatthescopepartsparkedtheideatomakeaarpeggiatorfromthishdthethreesignalsappearinginanicepatternjustidealformakingchiptunestylechordsthesetypeofchordsarebasically3differentpitchesthatareplayedathighspeedinsequenceaftereachothertomakeitappearasachordthereasonforthisisthatthehardwarecouldjustplayafewornonotesatthesametimeandthiswouldsavespaceformoreothersoundstobeplayedatthesametime

inthiscasethehdspinsandchiptunestylechordsareonlyheardwhenspunathighspeedwhenspunatlowspeedorwhenshortmovementsaremodewiththehdthe3comparatorscanturnonoroffby2atatimealsowhichgivessomeniceextrasortofrandomness

oneofthecomparatorsalsoactsasamastergateenvelopesothesoundscanfadeorstayonpermanentlydependingonwhichoscillatorisselected

becausethedeviceisclosetothewallandthespeakerisnotcasedthesoundswillcancelthemselfviathewallimadethisintoafeaturebyconnectingahingetotherightsideofthedevicesoitcanbemovedtolarrandrarrfromthewallgivinganiceeffecttothesounddepeningonthedistancefromthewallthiseffectworksbestonlowfrequenciesandwhentwonotesareonatthesametime

analog hd

theideaforislandsolderingcomesfromhereitisanicewaytosolderstuffintoanysurfaceisoldereditinsuchawaythatthatthecomponentslookliketheyarethrownin

analog hd schematic

schematicisabitunclear