Hi everyone,
 I am hoping this is the right place to post this question.
I am trying to implement the resampling algorithm as described in this
paper: https://ccrma.stanford.edu/~jos/resample/resample.pdf
I managed to construct the h (windowed sinc) table, and I have
implemented the loop. I am having a hard time to compute the eta
interpolation factor and the l index index for the h table. The "fixed
point" implementation of the paper is a bit confusing to me.
Looking at figure 7 in the paper, I think the interpolation factor needs
to be computed between the h entries instead of between the original
samples. However I don't understand how to compute the starting point
(h(l)).
I have just started working with audio code, so I might be
misunderstanding something fundamental about the paper.
I have coded a prototype which is shared here:
https://gist.github.com/theWatchmen/746f35c349748525b412cfd9466608ce
Apologies in advance if this is not the right forum.
Marco
Ratatouille is a Neural Model loader and mixer for Linux/Windows.

Ratatouille allow to load up to two neural model files and mix there
output. Those models could be [*.nam files](https://tonehunt.org/all) or
[*.json or .aidax files](https://cloud.aida-x.cc/all). So you could
blend from clean to crunch for example, or, go wild and mix different
amp models, or mix a amp with a pedal simulation.
To round up the sound it allow to load up to two Impulse Response files
and mix there output as well. You could try the wildest combinations,
or, be conservative and load just your single preferred IR-File.
On the Release Page been ready to use binaries, note please that
Ratatouille.lv2-v3-v0.1-linux-x86_64.tar.xz is a fully optimized version
using the x86-64-v3 optimisation, you could check if your system
supports that by running the command
`/usr/lib64/ld-linux-x86-64.so.2 --help 2>/dev/null | grep 'x86-64-v3
(supported'`
if that return nothing, your system can't use this, in that case you
should choose Ratatouille.lv2-v0.1-linux-x86_64.tar.xz
To build from source, please use Ratatouille.lv2-v0.1-src.tar.xz as only
that contain the needed submodules.
Release Page:
https://github.com/brummer10/Ratatouille.lv2/releases/tag/v0.1
Project Page:
https://github.com/brummer10/Ratatouille.lv2
Hello all,
zita-jacktools 1.7.1 is now available at the usual place:
<http://kokkinizita.linuxaudio.org/linuxaudio/downloads/index.html>
zita-jacktools is a collection of Jack audio processors
implemented as Python classes. These can be combined to
create complex graphs that are completely controlled by
a Python script and can be interfaced to anything that
Python can handle. Main applications are automated
measurements, sound installations, listening tests, etc.
New is this release:
class JackBw8filt
Up to 100 8th order Butterworth bandpass filters.
Each one can be configured separately and be lowpass,
highpass or both in series. Mainly meant for measurements
that require this sort of filtering.
classes JackFwplay amd JackFwcapt
These two classes allow to process an audio file via any
combination of Jack apps that function correctly in Jack's
freewheeling mode, and record the result.
All examples having a GUI now use PyQt6
--
FA
Hello all,
Triggered by a recent post, I've been dabbling a bit with Faust,
and have some questions :-)
(For the jack-gtk architecture)
- When started the app prints some useless info (a nuisance) and
it also autoconnects (a definite no-go).
Is there any way to avoid this ?
- The faust2jack script says it adds 'preset' functionality
to the GUI. But there seems to be no way to access this.
- The way the PRESETDIR is handled is weird. It is done by
prepending a single line temporary file to the merged cpp file
using cat.
What would be wrong with
# add preset management
if [ $PRESETDIR = "auto" ]; then
PRESETDEFS=-DPRESETDIR=\"/var/tmp/\"
else
PRESETDEFS=-DPRESETDIR=\"$PRESETDIR\"
fi
and then adding PRESETDEFS to the compiler options ?
(General)
- The various faust2*** programs work by merging the compiled dsp
file with the architecture file. While doing this, also all
include files from the /usr/include/faust directory are recursively
expanded in-line. Now I wonder why this is done. Surely the C++
preprocessor would do this anyway ?
TIA for any answers !
Ciao,
--
FA
Mamba is a Virtual MIDI Keyboard, a 16 Channel Live MIDI Looper and a
(multi) MIDI File player for ALSA / Jack Audio Connection Kit
with a fluidsynth interface, supporting Scala Tuning and Keymap files.

Release v2.6:
- Fix issue #53Â Config created in home dir instead of XDG_CONFIG_HOME
- Implement Looper Channel Control to select channels for mute/play
- Implement loop file clip/clap controls
- Implement Preload instruments on File load
- Update libxputty to latest revision
Prebuild binary
[Mamba.zip](https://github.com/brummer10/Mamba/releases/download/Latest/Mamb…
Project page :
https://github.com/brummer10/Mamba
Release Page:
https://github.com/brummer10/Mamba/releases/tag/v2.6
Hi all!
I have just released SoundTracker v1.0.5.
Its main feature it full support of stereo samples (MODplug extension),
plus some minor improvements.
Download: https://sourceforge.net/projects/soundtracker/files/
Regards,
Yury.
Guitarix.vst is the full blown guitarix stack as VST3 plugin for Linux,
using Juce to wrap the guitarix engine into a VST3 plugin.
It allow to load/save your presets, download presets from online and
load external LV2 plugs and IR Files, like the guitarix stand-alone version.
But all that as a VST3 plugin in your DAW. All parameters been exposed
to the DAW, so accessible for automation.
Other than the stand-alone, the VST3 version allows to switch the input
to a real stereo input, so it may match better your channel strip in the
DAW.
For Hdpi users, the GUI is full scalable.

New in this release:
 - Add support for RTNeural network engine
 - Allow to load two instances of the neural modules
 - Add NAM and RTNeural Multi module (Load two models and blend between
them)
 - Fix resampling issues within the neural modules
 - Update to latest guitarix2-0.46.0 release
Project Page:
https://github.com/brummer10/guitarix.vst
Release Page:
https://github.com/brummer10/guitarix.vst/releases/tag/v0.3
If you like to support the guitarix.vst development consider a donation:
[Donate](https://paypal.me/brummer1010)