Re: Kam s ním? (TL081)

[Jirka Mww]

Nevim, jak funguje toto, ale ve vf technice je to mozne udelat tak, ze se
nf signal namoduluje na nejakou nosnou frekvenci , odrizne se jedno
postranni pasmo a pak se to demoduluje zpet do nf oblasti, ale s jinym
nosnym kmitoctem, posunutym o ten shift. Radioamateri, provozujici SSB
modulaci to znaji.


ne 5. 12. 2021 v 23:20 odesílatel balu <balu na k-net.fr> napsal:

> 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: Sunday, December 05, 2021 at 10:22 PM
> > From: "balu" <balu na k-net.fr>
> > To: hw-list na list.hw.cz
> > Subject: 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.
> >
> > _______________________________________________
> > HW-list mailing list  -  sponsored by www.HW.cz
> > Hw-list na list.hw.cz
> > http://list.hw.cz/mailman/listinfo/hw-list
> _______________________________________________
> HW-list mailing list  -  sponsored by www.HW.cz
> Hw-list na list.hw.cz
> http://list.hw.cz/mailman/listinfo/hw-list
>
-- 
Zdravi
Jirka SloupenskĂ˝  OK1MWW
------------- další část ---------------
HTML příloha byla odstraněna...
URL: <http://list.hw.cz/pipermail/hw-list/attachments/20211206/8a848540/attachment.html>