Cycling 74 » Topic: crossfading between 4 audio files http://cycling74.com/forums/topic/crossfading-between-4-audio-files/feed Wed, 19 Jun 2013 02:26:56 +0000 http://bbpress.org/?v=2.2.4 http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-63706 <![CDATA[crossfading between 4 audio files]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-63706 Mon, 21 May 2012 15:24:41 +0000 Jason Orri Hi all, I’m having trouble thinking on how I might implement a crossfade between four different audio files – so that I could use a slider from 1 – 127 and as I scroll across sound one fades in and as I continue sound 2 fades in but sound 1 fades out as this happens continuing upto sound 4 at the far end being the only sound heard… I hope that’s clear.
I have tried using a number of crossfading examples from the forum but all deal with the idea of panning but in reverse: 2 inputs and I need four… can anyone help?
J

]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229759 <![CDATA[Re: crossfading between 4 audio files]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229759 Mon, 21 May 2012 15:26:22 +0000 Jason Orri My confused attempt:

– Pasted Max Patch, click to expand. –
]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229760 <![CDATA[Re: crossfading between 4 audio files]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229760 Mon, 21 May 2012 15:44:40 +0000 Roman Thilenius the only problem about this is the GUI – if you starting thinking within the limits of a 2-dimensional GUI object, you have lost.

to crossfade between each of 4 channels you need a symetric pyramid – the rest is nothing more than an addition of the results of linear fades between the 4 points of the pyramid.

how to make a usable GUI interface for that? no idea.

-110

]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229761 <![CDATA[Re: crossfading between 4 audio files]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229761 Mon, 21 May 2012 15:59:59 +0000 Jason Orri Yeah, I can envision that and it makes a good deal more sense than the 2d… surely it must be possible!

]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229762 <![CDATA[Re: crossfading between 4 audio files]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229762 Mon, 21 May 2012 16:21:53 +0000 Jason Orri Ah, solved – nodes is the key!

]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229763 <![CDATA[Re: crossfading between 4 audio files]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229763 Mon, 21 May 2012 16:22:16 +0000 tegid o Have a look at the fun tab of the nodes help file. It’s quite straight forward to adapt it to fade between sound files.

]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229764 <![CDATA[Re: crossfading between 4 audio files]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229764 Mon, 21 May 2012 16:39:39 +0000 Alexis Baskind Hi all,

Nodes gives a quite elegant solution for a 2D-interface. You can also think about multichannel panning laws like vbap, which in this case do exactly what you want, assuming that the speakers are on a circle.

But I guess that Jason was initially looking for a 1D-solution, for example if all speakers are on a line, controlled by a 1D parameter only. In this case here is an example of solution:

– Pasted Max Patch, click to expand. –

The key is the use of “min” and “abs” in the expressions, so that all coefficients are constrained between 0 and 1. The square root aims at providing a constant power to the phantom source (-3dB law).

Alexis

]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229765 <![CDATA[Re: crossfading between 4 audio files]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229765 Mon, 21 May 2012 16:54:22 +0000 Roman Thilenius yeah, nodes is 2d … a fade between 1 and 2 will be something else than a fade between 1. and 3.

]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229766 <![CDATA[Re: crossfading between 4 audio files]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229766 Mon, 21 May 2012 17:08:25 +0000 kaboo Another solution…?

– Pasted Max Patch, click to expand. –
]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229767 <![CDATA[Re: crossfading between 4 audio files]]> http://cycling74.com/forums/topic/crossfading-between-4-audio-files/#post-229767 Mon, 21 May 2012 17:11:37 +0000 Jason Orri These are great, Thanks guys.
J

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