Sorry for long answer.
> you mean that the 1ms accuracy of fluid may be the cause of the
> problem ? But the noteoffs are programmed about 7 ms after the
> noteons...
It just imho. What Josh think about this?
When i run fluidsynth with -v i see something like this:
fluidsynth: noteon 9
On Tue, 15 May 2007 00:05:01 +0200
Antoine Schmitt <[EMAIL PROTECTED]> wrote:
> Hello Mihail,
>
> did you confirm your intuition on this ?
> Can you explain more so that I can try to fix the problem ?
> Thanks a lot,
I do more tests - this bug more complicated then i think before.
I try play thi
On Fri, 11 May 2007 12:54:45 -0700 (PDT)
Z F <[EMAIL PROTECTED]> wrote:
>
> --- Miguel Lobo <[EMAIL PROTECTED]> wrote:
>
> > >
> > > It does not matter if you add random float to a float and truncate
> > or
> > > trancate and add a random bit, the outcome will be exactly the same
> > > sequence
On Thu, 10 May 2007 11:24:51 -0700 (PDT)
Z F <[EMAIL PROTECTED]> wrote:
>
> --- Mihail Zenkov <[EMAIL PROTECTED]> wrote:
>
> >
> > :) Where are you read this? I six years do amplifiers (mainly on
> > tubes)
> > and acoustics. All amplification st
On Wed, 9 May 2007 15:24:12 -0700 (PDT)
Z F <[EMAIL PROTECTED]> wrote:
>
> --- Mihail Zenkov <[EMAIL PROTECTED]> wrote:
>
> >
> > 1. Dynamic gain just fake. I can change velocity curve in midi and
> > get
> > something similarities gamma-correcti
On Wed, 9 May 2007 06:12:10 -0700 (PDT)
Z F <[EMAIL PROTECTED]> wrote:
>
> --- Mihail Zenkov <[EMAIL PROTECTED]> wrote:
>
> >
> > > > Yes, I hear.
> > > > 1. 16bit accuracy give 96 dB resolution. Human limit 120dB.
> > > > 2.
Subject: Re: [fluid-dev] Purpose of dither?
> > To: Mihail Zenkov <[EMAIL PROTECTED]>
> >
> > Admittedly I have forgotten a lot about signal processing, but I'm
> > not sure
> > I agree with everything you're saying.
> >
> > Roughly, dithe
On Wed, 9 May 2007 01:36:13 +0100
Miguel Lobo <[EMAIL PROTECTED]> wrote:
> > Yes, you absolutely right. But look at that code again:
> >
> > for (c = 0; c < DITHER_CHANNELS; c++) {
> > dp = 0;
> > for (i = 0; i < DITHER_SIZE-1; i++) {
> > d = rand() / (float)RAND_MAX - 0.5f;
> >
>> My English bad, but i try answer.
>I am relatively sure that my native lanugage is the same as yours :)
>and what you wrote in English is perfectly readible to me :)
I'm glad :)
> > Yes, I hear.
> > 1. 16bit accuracy give 96 dB resolution. Human limit 120dB.
> > 2. For mostly purpose 96 dB en
My English bad, but i try answer.
> Just a few comments.
>
> First of all I do not understand why dithering is needed at all.
All professional quality audio apps use dithering (from free software:
jack, audacity, brutefir, etc).
> 1.Do you mean that 16-bit accuracy is not enough and a human ea
On Tue, 8 May 2007 12:58:00 +0200
"Miguel Lobo" <[EMAIL PROTECTED]> wrote:
> >
> > http://en.wikipedia.org/wiki/Dither
> > In our case we have TPDF.
>
>
> Thanks, I should have thought of looking it up in Wikipedia. Is there any
> reason why separate dither buffers are used for the left and rig
On Tue, 8 May 2007 01:22:45 +0200
"Miguel Lobo" <[EMAIL PROTECTED]> wrote:
> Hi list,
>
> We have this code in fluid_synth.c:
>
> #define DITHER_SIZE 48000
> #define DITHER_CHANNELS 2
>
> static float rand_table[DITHER_CHANNELS][DITHER_SIZE];
>
> static void init_dither(void)
> {
> float d,
On Mon, 7 May 2007 10:31:19 +0200
Antoine Schmitt <[EMAIL PROTECTED]> wrote:
> Thanks Mihail,
> do you mean that you tested my midi file on your system and you also
> fails to hear (some of) the drums ?
> Please can you let me know what your context is ? platform, software,
> libraries, versio
On Wed, 18 Apr 2007 12:12:21 +0200
Josh Green <[EMAIL PROTECTED]> wrote:
> I'm looking into converting FluidSynth CVS to Subversion. Unfortunately
> it seems that Savannah's subversion support is rather sub par. They
> have documents on converting CVS to Subversion, but I can't find
> anything o
On Fri, 4 May 2007 11:09:41 +0200
Antoine Schmitt <[EMAIL PROTECTED]> wrote:
> Hello all,
> actually more information on this issue.
> On my Windows machine, the standard command-line fluidsynth.exe does
> not play _any_ drum note of the given TwistAndShout.mid midi file.
> Note that in this fil
> - Other audio formats (floating point or 24 bit for example, new
> SoundFont 2.04 supports 24 bit, and now Swami/libInstPatch does too, but
> can only hear it in 16 bits!)
Why we hear it only in 16 bits?
> As for the question of platform. We have:
>
> A. Continue using C without any support
> As long as that seems like a normal way of handling clipping, then I
> suppose its OK. I was just curious if there are any more elegant
> solutions. Unfortunately I'm no DSP expert, but I get by OK :) Cheers!
> Josh
I also no DSP expert, i just like HQ audio and do for this what i can
> > What about 'internal clipping', how can i reproduce this?
>
> I notice that when playing many notes of an instrument it starts
> sounding clipped, but the output going to the sound card is not full
> output. Lowering the synth.gain parameter of course helps this. It
> just seems like FluidSy
> There is one issue that can still be a problem and that is that if
> FluidSynth is internally configured at a different baud rate than what
> the driver is using. This will usually be reported as a warning though
> (perhaps it should actually be a fatal error, at least until drivers can
> switch
On Sat, 17 Mar 2007 07:50:47 +0100
oxi <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I have checked this in other sf2 samplers for windows and there they sound
> right. In FluidSynth 1.0.7 some notes of the grand piano of Cadenza don't
> sound right; I also noticed this with other sf2 which I can't r
On Tue, 06 Mar 2007 13:47:03 +
Josh Green <[EMAIL PROTECTED]> wrote:
> On Sat, 2007-03-03 at 23:30 +0200, Mihail Zenkov wrote:
> > This patch fix case when scaleTuning == 0 (in SF21, page 47 -
> > scaleTuning). Yamaha Konzert Piano.sf2 (from p2p) have this case.
&
On Sat, 3 Mar 2007 21:00:21 -0500
"Marcus Planet" <[EMAIL PROTECTED]> wrote:
> Dear Mihail,
>
> I've been programming so much lately that I've neglected thanking you
> and others involved in the fluidsynth project. I'm creating a linux
> music program and I'm indebted to the excellent fluidsynth
This patch fix case when scaleTuning == 0 (in SF21, page 47 -
scaleTuning). Yamaha Konzert Piano.sf2 (from p2p) have this case.
fluidsynth-scaleTune.patch
Description: Binary data
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On Thu, 23 Nov 2006 19:13:37 +
Josh Green <[EMAIL PROTECTED]> wrote:
> Hello Mihail Zenkov,
>
> Question to others on the list: Anyone have an application using a
> new_fluid_*_audio_driver2() call?
>
> On Wed, 2006-11-22 at 02:57 +0200, Mihail Zenkov wrote:
>
On Thu, 23 Nov 2006 19:13:37 +
Josh Green <[EMAIL PROTECTED]> wrote:
> Hello Mihail Zenkov,
>
> Question to others on the list: Anyone have an application using a
> new_fluid_*_audio_driver2() call?
>
> On Wed, 2006-11-22 at 02:57 +0200, Mihail Zenkov wrote:
>
On Thu, 16 Nov 2006 20:44:36 +
Josh Green <[EMAIL PROTECTED]> wrote:
> Thanks for the links, I have a better understanding of dithering now :)
> FluidSynth really needs a new release, I'll make it a priority. Best
> regards,
> Josh Green
>
I fix fluid_aufile.c to use dithering.
fluid
On Tue, 21 Nov 2006 16:14:25 +
Paul Millar <[EMAIL PROTECTED]> wrote:
> Hi Mihail,
>
> On Tuesday 21 November 2006 15:16, Mihail Zenkov wrote:
> > > I can set the sample rate to 48kHz in fluid_settings_t. But, when I
> > > start the audio output, it falls b
On Tue, 21 Nov 2006 21:36:16 +
Josh Green <[EMAIL PROTECTED]> wrote:
> I just checked in some changes into CVS.
>
> Including:
> - Dithering now performed for 16 bit output (thanks to Zenkov Mihail)
> - Bug fix to 100% CPU consumption problem with "default" ALSA device
> - Some minor bug fixe
On Thu, 16 Nov 2006 22:02:45 +
Paul Millar <[EMAIL PROTECTED]> wrote:
> Josh, Garett,
>
> Thank guys for the quick reply.
>
> Yes, the work-around worked fine: when setting "audio.alsa.device" to "hw:0"
> I see the CPU usage drops to far more modest values.
> Setting "audio.alsa.device"
I use fluidsynth with midi keyboard and very happy :) But i hear
rounding error, i add triangle dither to prevent this. It work for
alsa, oss and should work for other audio driver if it use
fluid_synth_write_s16.
P.S. Sorry my english ;)
fluidsynth-dithering.patch
Description: Binary data
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