[PlanetCCRMA] Pentium-4 and denormal numbers on planetccrma

Mark Knecht Mark Knecht <markknecht@gmail.com>
Fri Jan 28 17:10:02 2005

On Fri, 28 Jan 2005 16:43:28 -0800 (PST), Fernando Lopez-Lezcano
<nando@ccrma.stanford.edu> wrote:
> On Fri, 2005-01-28 at 16:27, Mark Knecht wrote:
> > On 28 Jan 2005 16:01:05 -0800, Fernando Lopez-Lezcano
> > > Maybe this is the way to "cure" (as in "don't think too much")
> > > freqtweak, it also has denormal issues in its current release.
> > > 
> > A bit off-topic but while you have bitscope out and working try
> > hooking up alsaplayer and playing either some mp3 or wave files. Do
> > you see any problems?
> Interesting, looks like a bug in alsaplayer?. For those not looking at
> my screen, I see the pattern singled out as "Mistake #1" in the bitscope
> docs, which means the scaling from integers to floats prior to sending
> stuff to jack is off by 1 (if I understand the meaning correctly). Nice
> catch.

Good. You see what I do.

Just wondered if it was only my system. I mentioned this in passing on
LAU a few months ago but got no responses to the thread. I assumed no
one really used bitscope.  Nice to know that it's not just something
on my end.

> Mark, did you _hear_ this first and then looked at bitscope? :-)

Heck no. I'm far to deteriorated to catch something like that with
these ears. Doing sound for Andy John's bands, not to mention my own,
in the 70's did me in I'm afraid. ;-)

I have not communicated this to Andy but probably someone should.