Signal more than 22000 Hz ?

JLS · Post by **JLS** » Thu Nov 29, 2007 11:03 pm

Hi all

Is possible generate signal more than 22000 Hz on scope board ?

my idea is about 0-48000 Hz ( if samplerate set 96 kHz)

Is possible or not ?

Very thanks info about this

Kamil

Post by **garyb** » Fri Nov 30, 2007 1:37 am

sure, what system will reproduce it?

JLS · Post by **JLS** » Fri Nov 30, 2007 1:43 am

PA system not problem

and piesoelectric resonator

not for audio only for experiments with resonant Kyma-wave.

Kamil

Mr Arkadin · Post by **Mr Arkadin** » Fri Nov 30, 2007 1:50 am

What you trying to do - annoy dogs and bats?

JLS · Post by **JLS** » Fri Nov 30, 2007 2:33 am

only for cymatic experiment

IS POSSIBLE GENERATE THIS SIGNAL WITH SCOPE OR MODULAR ?

( in sound forge working fine but not ergonomic signal and not modulate this )

THANKS Kamil

astroman · Post by **astroman** » Fri Nov 30, 2007 3:20 am

imho the question is rather:
will you get it through the output conversion stage, as it is designed for audio purpose (filters etc)

cheers, Tom

Post by **garyb** » Fri Nov 30, 2007 3:31 am

he didn't believe me....

dawman · Post by **dawman** » Fri Nov 30, 2007 3:34 am

The Waldorf Q yellow rack I heard did it. My neighbor complained I was killing her rodent ( chihuahua ).

Once I realised the little rat was suffering, naturally I had to do a final resonating self Oscillation to complete the test.

Is it a sample wave from the Capybara ?

JLS · Post by **JLS** » Fri Nov 30, 2007 6:45 am

No no

Cymatic is study of wave phenomena.

not sound system

im use pulsar only like signal generator

piesoelectric phenomen on water, dust, oil and other material (Pythagoras,Chladni, Jenny ....)

In SoundForge if set sample rate 96kHz produce signal 0-48000Hz = working, but not easy set frequency and combination frequency - ideal for modular but only 22000 Hz

Kamil

the19thbear · Post by **the19thbear** » Fri Nov 30, 2007 6:53 am

well im not at my music computer right now, but this could easily be tested! set up a osc in modular II/III and record to wavelab etc, and see if there is any wave.. Someone do the man a favor

BUT!! I dont think you will get the sound out of the soundcards outputs, because they are filtered which means that it wont allow very low/high frequenzies to go trhough( I THINK! i have not tested it) Maybe if you go digital out from scope (spdif?), and into some high/low repdroducing special equipment with spdif inputs..

Post by **garyb** » Fri Nov 30, 2007 11:42 am

that would likely work.
worst case, an sdk developer may need to implement an osc that generated such a signal. a digital out would be required for sure....

ChampionSound · Post by **ChampionSound** » Fri Nov 30, 2007 12:16 pm

Well, my monitors have SPDIF inputs and the are directly connected to my SPDIF output of my scope card.
I have Tannoy Precision 8D monitors, and with their so called 'super tweeters' Tannoy claims to produce frequencies up to 51(!) kHz. So I assume the anti aliasing filter of the DA convertor of these monitors is not limited to 22 kHz.
Of course I could never hear such frequencies (let alone 22 kHz), but Tannoy says it's rather for accurate phase control in the high freq range which wil give a subjective improvement. Well, I'm not sure about this, because if I play a CD, then there aren't any frequencies present at 23kHz, right? So how can you reproduce something which wasn't there in the first place? Maybe these benefits only apply when working in 96K? (These monitors do sound good anyway, though)

Anyway, I think it' should be possible to reproduce up to 48 kHz if you're working at 96K samplerate and have the right convertors and monitors/speakers.