Hi Albert,
THERE IS a division by zero in glassHarmonica.dsp and the compiler is now
able to detects it ! But it is hard to see for our poor human eyes ;-)
-> par(i,nModes,(resonance(i)~_))
-> resonance(5)
-> delayLine(5)
-> delayLength(5);
-> delayLengthBase/modes(preset,5);
-> delayLengthBase / 0
because:
preset = 3;
modes(3,5) = 0 : float;
Romain, can you have a look at glassHarmonica.dsp ?
Cheers
Yann
Yann Orlarey
Directeur scientifique
www.grame.fr
On Sat, Jun 25, 2016 at 9:48 AM, Albert Graef <aggr...@gmail.com> wrote:
> Hi Stéphane,
>
> On Sat, Jun 25, 2016 at 8:57 AM, Stéphane Letz <l...@grame.fr> wrote:
>
>> Concerning the first part, it seems you did not read my mail of June 17,
>> I put it again here :
>>
>
> Indeed I did not, it still sits waiting patiently in my inbox, due to be
> opened this weekend. ;-)
>
>
>> 2) the « static void metadata(Meta* m) » method of the dsp class has
>> been made an object method. Defining a static method was really a C++ like
>> way to do, and was finally more annoying that helpful in a lot of cases :
>> C, LLCM, asm.js…etc… backends in the faust2 branch with this static model
>> dos not make real sense..etc.
>>
>
> Ok, I understand. I've updated my faust-lv2 and faust-vst sources
> accordingly, so that they are in sync with the Faust repo again. I still
> need to check the generated plugins, though.
>
> Were there any changes in the C and LLVM back-ends as well? That would
> directly affect the Pure-Faust interface and probably a couple of my other
> sources.
>
>
>> Concernant division by zero this that done by this commit
>> b19223d88afb2b8f26226bf2453c5ead66abee1c "Detect division by zero during
>> symbolic division », maybe the fix is not correct? Yann?
>>
>
> This really looks like a compiler bug to me. At least the error message is
> incomprehensible. And glassHarmonica.dsp appeared to work without a hitch
> before.
>
> Thanks,
> Albert
>
>
>> > Le 25 juin 2016 à 01:59, Albert Graef <aggr...@gmail.com> a écrit :
>> >
>> > I've got some trouble with the latest faust again (using the faust2
>> branch).
>> >
>> > First, it seems that metadata() was recently changed from a class to an
>> object method, breaking the API. Conceptually, that doesn't make much sense
>> to me; the dsp meta-data should be the same for all dsp instances and hence
>> static, no? So why was this change needed?
>> >
>> > Second, glassHarmonica.dsp suddenly refuses to compile, faust bails out
>> with this error message:
>> >
>> > ERROR: division by 0 in min(1.92e+05f, max(1.0f, fSamplingFreq)) *
>> nentry(freq [1][unit:Hz] [tooltip:Tone
>> frequency]/Basic_Parameters,4.4e+02f,2e+01f,2e+04f,1.0f)**-1 / 0.0f
>> >
>> > Looking at glassHarmonica.dsp, I don't see any division by zero there.
>> Can anyone enlighten me?
>> >
>> > TIA,
>> > Albert
>> >
>> > --
>> > Dr. Albert Gr"af
>> > Computer Music Research Group, JGU Mainz, Germany
>> > Email: aggr...@gmail.com
>> > WWW: https://plus.google.com/+AlbertGraef
>> >
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>
>
> --
> Dr. Albert Gr"af
> Computer Music Research Group, JGU Mainz, Germany
> Email: aggr...@gmail.com
> WWW: https://plus.google.com/+AlbertGraef
>
>
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