In the current csound 5 build system, USE_DOUBLE is a configure script
option (--enable-double), so passing --enable-double=no will compile with
float.

I wasn't aware of problems with analysis utilities. Does anyone have more
detailed experience of that?

============================================
Michael Gogins
gogins at pipeline period com
Irreducible Productions
CsoundVST, an extended version of Csound for programming music and sound
Available at http://sourceforge.net/projects/csound/
============================================


----- Original Message ----- 
From: "stevenyi" 
To: "Csound Developers Discussion List" 
Sent: Sunday, February 22, 2004 8:30 PM
Subject: [CSOUND-DEV:4094] Re: Major commits to Csound 5


> I think using doubles all the way through sounds better too, but I've
> found it's generally slower to compile a piece.  So I've gotten into the
> mindset of rendering with csound for general use and csound64 when
> rendering to disk.  I haven't tested the speed difference in a while,
> but last I checked it was noticeable in longer pieces I was working on.
>
> Sidenote: It always was strange to me not to have different compilation
> targets for csound and csound64.  What do you think of then passing a
> compiler flag to determine how to set MYFLT rather than having it in the
> autoheader (or wherever it is now) and setting up two targets in the
> Makefile?
>
> Another reason to go with floats is for backwards compatibility.  Some
> of the analysis utilities won't work with doubles, if I remember
> correctly.  Also, I'd venture to say that most people have their
> analysis files analyzed using floats.  Doesn't affect me so much as my
> .cv files are in 32 and 64, but likely to affect other users.  So, say
> if an old Csound user decides to render and older piece of there's,
> there shouldn't be any problem for him/her to be able to download csound
> and render out of the box.
>
> steven
>
>
> On Sun, 2004-02-22 at 13:39, Michael Gogins wrote:
> > Since Csound is a musical instrument and double sounds better than
float -- 
> > please try it and see if you agree, listen especially to filtered sounds
and
> > high-index FM sounds -- I firmly believe that Csound 5 should be double
by
> > default.
> >
> > There will be problems if people don't agree as to sample format, since
> > plugins must have the same sample size as the host. I don't want to get
into
> > a situation where we have to have plugin32.dll and plugin64.dll for
every
> > opcode.
> >
> > What's the big deal against double? I think float is sheer inertia. Last
> > time I checked the running times on Windows, they were essentially the
same.
> > I think there should be a really compelling reason to stick with float
if
> > some people with trained ears think double sounds better.
> >
> > ============================================
> > Michael Gogins
> > gogins at pipeline period com
> > Irreducible Productions
> > CsoundVST, an extended version of Csound for programming music and sound
> > Available at http://sourceforge.net/projects/csound/
> > ============================================
> >
> >
> > ----- Original Message ----- 
> > From: "stevenyi" 
> > To: "Csound Developers Discussion List" 
> > Sent: Sunday, February 22, 2004 4:22 PM
> > Subject: [CSOUND-DEV:4089] Re: Major commits to Csound 5
> >
> >
> > > Hi Michael,
> > >
> > > A couple of things I noticed:
> > >
> > > When trying to run xanadu.csd, I get:
> > >
> > > Csound version 5.0 beta (double samples) Feb 22 2004
> > > displays suppressed
> > > 0dBFS level = 32767.0
> > > orch now loaded
> > > audio buffered in 1024 sample-frame blocks
> > > PortAudio device 0
> > >   /dev/dsp
> > >   Maximum channels in:     16
> > >   Maximum channels out:    16
> > >   Default sample rate:  44100.000
> > > PortAudio device 1
> > >   Intel 82801CA-ICH3
> > >   Maximum channels in:      2
> > >   Maximum channels out:     2
> > >   Default sample rate:  44100.000
> > > PortAudio error -9996: Invalid device
> > > unable to open soundcard for audio output
> > > Segmentation fault
> > >
> > > I'm get that using "csound -d -o dac xanadu.csd" as well as "csound -d
> > > -o /dev/dsp xanadu.csd"
> > >
> > > -Should Csound5 be set to use doubles by default?  I realize I can set
> > > it in configure with --enable-double=no, but I think that most people
> > > use float versions and would expect to get have that.  Any problems if
I
> > > set that to no by default and commit?
> > >
> > > -Xanadu.csd does output to wav no problems. =) (I couldn't get so far
> > > before).
> > >
> > > -From configure, I get both USE_FLTK and USE_TCLTK defined.  Is that
> > > correct?
> > >
> > > Running out the door, will have more later!
> > >
> > > steven
> > >
> > >
> > >
> > >
> >
> >
>

Yes, I saw this flag with the configure options.  I think I was looking
to have it such that a csound and csound64 would be built all in one
pass, but I guess there's no difference than doing a "make clean" and
reconfiguring.  

I don't remember the details with the analysis utilities; Richard Dobson
explained them in detail in a post on the csound list in reply to
questions I had a while back, but I can't find the post.  I know
convolution works fine if you analyze and use the files with the same
bit and endian-ness, so works for both csound and csound64.  Sorry can't
be of more help here.

steven


On Sun, 2004-02-22 at 19:00, Michael Gogins wrote:
> In the current csound 5 build system, USE_DOUBLE is a configure script
> option (--enable-double), so passing --enable-double=no will compile with
> float.
> 
> I wasn't aware of problems with analysis utilities. Does anyone have more
> detailed experience of that?
> 
> ============================================
> Michael Gogins
> gogins at pipeline period com
> Irreducible Productions
> CsoundVST, an extended version of Csound for programming music and sound
> Available at http://sourceforge.net/projects/csound/
> ============================================
> 
>