Re: [LAU] jconv settings

On Tue, Sep 29, 2009 at 11:04:14PM -0700, Fernando Lopez-Lezcano wrote:

> On Sun, 2009-09-27 at 16:04 +0200, Jörn Nettingsmeier wrote:
>
> > yeah, jconv is the best-sounding convolver in the world.
> > the clarity of its fft, the warmth of the multiplications, and the
> > effortless fulminance of the inverse fft add a lustre to strings and
> > percussions, and the tightness of the fundamentals is in a league of its
> > own. ever since i had my cpu socket gold-plated, i've been able to
> > appreciate it in full.
>
> I agree that gold platting cpu sockets is a good start (but don't forget
> the memory sockets unless you get your algorithm to fit completely in
> the cpu cache). On the other hand you _have_ to use water cooling or
> some other sort of fanless cooling for the cpu. Otherwise the gold
> platting will not do much good IMNSHO. Cpu cooling fans, no matter how
> good, are known to actually shake the bits in the top cpu cores too
> much. A lot of vibration. And shaken bits don't convolve very well (in
> extreme cases they can spill from one fft bin to the next!). Fact.

You are both very right about this. Gold-plating the cpu socket will
do wonders for the light and fast bits used to convolve the first few
kilosamples of a long IR - being light (and thus having little kinetic
energy) they really need low-resistance paths. For the later parts
of the IR jconv uses heavy bits, and a lot of them. Having all this
mass vibrate can put excessive stress on you CPU.

Ciao,

-- 
FA
Io lo dico sempre: l'Italia è troppo stretta e lunga.
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