Listening to Music Upside-Down

[andrezlatin]

Now try to mix that togrther

?????? PROFIT

[plugexpert]

I'm not a big fan of the bandpassy / siney sound, fft-processing always seems to bring to the table, any chance of using other sounds to base the synthesis on? Like in audiopaint you can use samples instead of the typical sinewave sound.

[Photosounder]

@plugexpert no. And yes. Photosounder just make a sound as faithful as it can to the image you give it. If you want the sound that comes out to sound different you have to change the image you give it. If you give it an image with full areas it will sound like bandpassed noise (which it is). If you want something else you have to give it something else.

[Photosounder]

@plugexpert maybe my previous comment didn't properly answer your question. There are some artifacts that come with such methods for resynthesis so you'll always hear them. However with Photosounder you can change the tone of the sound. For example, if you have a bunch of lines but you don't want them to sound like sine waves, in Photosounder you can apply some harmonics to them using vertical propagation, and by changing your harmonics you can change the tone that comes out.

[anarcyboy12]

sounds like a carnaval

[IDeafpool]

silent hill.

[hellswings]

creepy

[BEASLAND000]

is there an online version?

[SuckItLily]

makes it better

[uncinarynin]

So that is how all the Chinese-sounding music is made!

[flexyco]

Sounds scary. Sounds like something the band Coil could have produced.

[Photosounder]

@flexyco interesting that you should say that as they're made music using the ANS synthesiser which has many things in common with Photosounder as far as synthesis is concerned. In a way the ANS synth is the earliest precursor to Photosounder.

[happyface4444]

southpark

[xOnyxTheHedgehogx]

It sounds like church music.

[emperorcj]

This should be a VST plugin. Is it possible to upside-down-ify sound in real-time with decent resolution, or is that impossible because of the nature of fourier transforms?

[emperorcj]

*presently unrealistic on an average computer

[Photosounder]

It could be done in real-time, even on an average computer, but it would have a delay of at least about 400 ms. That's a problem with such processing in real-time, you need to have some samples from the future to do things in real-time with no delay.

[beatsiz]

@Photosounder Nowadays with GPU's and CPU's power and stuff this should be possible man... i7 processors should be able to do it and if not then just code it in CUDA on an nVidia GPU.

There should be less than 50ms delay for sure.

[Photosounder]

@beatsiz oh the problem I'm highlighting is theoretical, sure, with CPUs and mostly GPUs you could do it all very fast, but the thing is, you need to have samples from the future for the analysis part (to tell the frequency at a precise point in time you need as many samples from before the point as after the point, how many determines how much resolution you get), and because you can't have them you have to wait for them, hence the necessary delay.

[faunflynn]

@Photosounder Are you referring to the window size on the FFT covolution transform ?

[joejumps4fun]

do it with a voice, then tell me when you've uploaded it so I can hear it.

[ALXXMaXX]

I wonder what would happen if you did this to vocals?

[Photosounder]

Sounds a bit alienish, and pretty unintelligible. You can try that, just load the demo, load the HAL 9000 file, press FLIP then press 180°.

[dsjfh09kjmsd3kjh]

No, I will not download your program just to try that if that's what you want.

[Photosounder]

I wasn't talking to you.

[rhinonose]

i've imagined this, and in all of my sound editing and music programs when i chose "invert" i thought it was going to do this.

[k0is0king]

wow it sounds better upside down

[Panopticonpeter]

wow it actually sounds like you transposed it to the relative minor by doing that...

[Photosounder]

Ah yes, someone explained to me that it's due to the fact that the harmonics, once inverted, form a minor chord, something like a dim7, not sure.

[meliquoi]

Neat. Love that underpants gnome song!

[Kenyawn]

Uh, brilliant?