[PD] mixer implementation

[Joe White]

Hey Alexandros,

That's generally referred to as an Equal Power Crossfade, as you can see in
your results it's to keep the perceived loudness of your crossfade output
constant. For correlated signals this is generally better - you could also
use a logarithmic function (and it's inverse). In the case of an
un-correlated signal a linear crossfade might be more suitable.

Cheers,
Joe

On 16 February 2015 at 21:52, Alexandros Drymonitis <adrcki at gmail.com>
wrote:

> I was checking Integra Live's modules and a Mixer module uses this
> technique to mix two signals:
>
> [0 \ <- value between 0 and 1
> |
> [* pi/2]
> |
> [t f f]_____
> |                [sin]
> [cos]           | <- multiplied by the second signal
> |
> | <- multiplied by the first signal
>
>
> The above ASCII patch is a simplified version focusing on the basic
> technique. Doing the same and sending the result to [env~] stays between 95
> and 98 approximately, but graphing it in an array, it exceeds the limits
> (-1, 1) by 0.4 approximately.
> Is this the way to mix two signals, or is there something else I should be
> looking for?
>
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