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Frequency Shifter MP3's

2001-04-04 by Chris MacDonald

I put up some mp3's of a frequency shifter at work. It's not a Serge FS
though (wish I had one!), it's a prototype design I have been working
on.

http://groups.yahoo.com/group/SergeModular/files/phase.mp3
http://groups.yahoo.com/group/SergeModular/files/up.mp3
http://groups.yahoo.com/group/SergeModular/files/down.mp3

The source sound is from an OB-8 (sorry no Serge, faster just to plunk
down a chord).

"phase.mp3" demonstrates the infinite phasing effect produced by
slightly shifting the frequency of the input signal and mixing it with
the original. This is a stereo file with up shifting panned to one side
and down shifting panned to the other. Some feedback is used to enhance
the phasing effect. The start of the file has a few seconds of the
plain signal for contrast.

"up.mp3" is a mono file with the chord being slowly shifted up by
turning the frequency knob.

"down.mp3" is also mono, the chord is being shifted down (sounds a bit
like the tanks in "Tron" to me). Notice how the frequencies start to
rise again as the down shift increases. They are being "reflected" back
up after they shift down through zero hertz.

-Chris

Re: Frequency Shifter MP3's

2001-04-06 by dahlia13@bigfoot.com

Hey, these are great! Thanks for putting them up. In the "up" file, your frequency shifter sounds a bit like a ring modulator when it gets really high, but otherwise, it's not like any effect I've heard before. If it was kept to smaller ranges, it could almost pass as varispeeded tape, minus the speed changes. I'd be curious to hear what it sounds like on acoustic sounds (voice, piano, guitar, etc). The phasing effect is cool - it sounds more like flanging than what you'd get with a conventional phaser, but not as metallic as flanging and without the delay. There's almost a "barberbole", Shepard tone thing going on in these samples. Very cool.

Igor.

Show quoted textHide quoted text

--- In SergeModular@y..., Chris MacDonald <macdonald@e...> wrote:
> I put up some mp3's of a frequency shifter at work. It's not a Serge FS
> though (wish I had one!), it's a prototype design I have been working
> on.
>
> http://groups.yahoo.com/group/SergeModular/files/phase.mp3
> http://groups.yahoo.com/group/SergeModular/files/up.mp3
> http://groups.yahoo.com/group/SergeModular/files/down.mp3
>
> The source sound is from an OB-8 (sorry no Serge, faster just to plunk
> down a chord).
>
> "phase.mp3" demonstrates the infinite phasing effect produced by
> slightly shifting the frequency of the input signal and mixing it with
> the original. This is a stereo file with up shifting panned to one side
> and down shifting panned to the other. Some feedback is used to enhance
> the phasing effect. The start of the file has a few seconds of the
> plain signal for contrast.
>
> "up.mp3" is a mono file with the chord being slowly shifted up by
> turning the frequency knob.
>
> "down.mp3" is also mono, the chord is being shifted down (sounds a bit
> like the tanks in "Tron" to me). Notice how the frequencies start to
> rise again as the down shift increases. They are being "reflected" back
> up after they shift down through zero hertz.
>
> -Chris

Re: Frequency Shifter MP3's

2001-04-06 by Chris MacDonald

Glad you liked the sounds. I will try to find some more acoustic-type
sounds to process if I get the chance. Argh, too many things to do and
not enough time! :-)

-Chris

dahlia13@... wrote:

Show quoted textHide quoted text

>
> Hey, these are great! Thanks for putting them up. In the "up" file, your frequency

shifter sounds a bit like a ring modulator when it gets really high, but
otherwise, it's
not like any effect I've heard before. If it was kept to smaller ranges,
it could almost
pass as varispeeded tape, minus the speed changes. I'd be curious to
hear what it sounds
like on acoustic sounds (voice, piano, guitar, etc). The phasing effect
is cool - it sounds
more like flanging than what you'd get with a conventional phaser, but
not as metallic as
flanging and without the delay. There's almost a "barberbole", Shepard
tone thing going on
in these samples. Very cool.

>
> Igor.
>
> --- In SergeModular@y..., Chris MacDonald <macdonald@e...> wrote:
> > I put up some mp3's of a frequency shifter at work. It's not a Serge FS
> > though (wish I had one!), it's a prototype design I have been working
> > on.
> >
> > http://groups.yahoo.com/group/SergeModular/files/phase.mp3
> > http://groups.yahoo.com/group/SergeModular/files/up.mp3
> > http://groups.yahoo.com/group/SergeModular/files/down.mp3
> >
> > The source sound is from an OB-8 (sorry no Serge, faster just to plunk
> > down a chord).
> >
> > "phase.mp3" demonstrates the infinite phasing effect produced by
> > slightly shifting the frequency of the input signal and mixing it with
> > the original. This is a stereo file with up shifting panned to one side
> > and down shifting panned to the other. Some feedback is used to enhance
> > the phasing effect. The start of the file has a few seconds of the
> > plain signal for contrast.
> >
> > "up.mp3" is a mono file with the chord being slowly shifted up by
> > turning the frequency knob.
> >
> > "down.mp3" is also mono, the chord is being shifted down (sounds a bit
> > like the tanks in "Tron" to me). Notice how the frequencies start to
> > rise again as the down shift increases. They are being "reflected" back
> > up after they shift down through zero hertz.
> >
> > -Chris
>
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>
> Keep on Patchin'!
>
>
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Re: Frequency Shifter MP3's

2001-04-06 by DarkStr717@aol.com

In a message dated 4/5/01 10:08:45 PM, macdonald@... writes:

<< I'd be curious to
hear what it sounds
like on acoustic sounds (voice, piano, guitar, etc). >>

Try running a pre-recorded sound thru it.. a CD or tape.. whatever. Rex came
up to my place a few years back and we ran a CD of the Ventures thru it... I
just about fell down LOL.. wish i could remember what he did.
John