Re: Kam s ním? (TL081)

[balu]

na YT som videl video s vyslednym efektom. Naozaj to znie ako posunute 
spektrum. Co si v analogovej forme viem len velmi tazko predstavit, aj 
ked som videl spominanu schemu :-)



On 05/12/2021 23:15, sam.hw wrote:
> Zdravim,
>
> jak to funguje, to musim priznat: fakt netusim - ale na druhou stranu (jak vidim to zapojeni a ruzne hodnoty soucastek pro levy a pravy kanal)
> mam pocit, ze to 'slysim'
> a mam pocit, ze to bude docela ruzne pro sin, triangle, a i pro pulzni vstup
> jde (asi) o fazovy posuv s mirnym odklonem, ktere pusobi v interferenci jako 'nasobic' (ale presne jak to bylo receno, ne pitcth)
> takze spis jako nejaka (pod)harmonie ...
>
> to by chtelo minimalne nasimulovat - anebo spis opravdu poslechnout
>
> jako kdyz jsem kdysi prisel k prodejci syntaku a rikal mu, ze bych potreboval nastroj, kde vidim, jak obalku tonu rovnou nacrtnu, o jaky prubeh mi jde.
> on odpovedel, ze to je prece jedno, ze jde o vyslednek, jak to nakonec pusobi ...
>
> to je ten rozdil mezi exaktni vedou v elektronice a subjektivnim vystupem v beznem zivote (nechci rict primo v umeni)
>
> :)
>
> PS: na druhou stranu, rad si prectu o technicke strance veci a opravdu klobouk dolu pred lidma, co do detailu dokazou zanalyzovat, co se v danem schematu deje a navic, dokazou to podat srozumitelne i 'obycejnym lidem'
>   
> --------------------------
> Sam
> --------------------------
>   
>   
>
> Sent:Â Sunday, December 05, 2021 at 10:22 PM
> From:Â "balu" <balu na k-net.fr>
> To:Â hw-list na list.hw.cz
> Subject:Â Re: Kam s nĂ­m? (TL081)
> ja viem, spominal som to v suvislosti s paralelnym vlaknom o tranzistoroch z dneska.
> Linka vyzerala zaujimavo, tak som sa pozrel na nejake ine syntezatory. A nasiel som Moog modular system
> http://www.synthmanuals.com/manuals/moog/modular_system/service_manual/moog_modular_system_service_manual.pdf
> na obrazku 39 je Bode frequency shifter. Zaujimavy obvod, niekto tusi ako to funguje? :-)
> A frequency shifter is a highly specialised module capable of shifting the spectrum of a signal by a fixed amount. This is very different from a pitch-shifter and other effects such as ring modulation or frequency modulation. (See appendix 5.)
> The RS-240 allows you to shift the frequency linearly within a number of ranges, the widest of which shifts the signal by approximately Âą5kHz at its maximum setting. You can use manual and voltage controls (or a combination of the two) to achieve the desired effects. Upwardly shifted and downwardly shifted signals are available simultaneously, both as independent signals, and as a user-defined mix of the two.
> This module also allows you to shift the frequency exponentially, which will produce a number of conventional - and less conventional - pitch shifting effects.
> b.
>   
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