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zam-plugins 4.5+ds-1

Package Information

DescriptionCollection of LV2, CLAP, VST3, LADSPA, LINUX-VST and JACK plugins

Plugins for high quality audio processing.

The purpose of these plugins is to provide high quality DSP without using an excessive amount of CPU.

There currently is no official documentation on how to use these plugins, but anyone who is familiar with outboard gear should be able to work it out. The default settings and almost every slider is calibrated to standard ranges.

Package contain these plugins: * ZamAutoSat Automatic saturator (mono) * ZaMaximX2 Lightweight maximiser/limiter (stereo) * ZamComp Dynamic range compressor (mono) * ZamCompX2 Dynamic range compressor (stereo) * ZamDelay Basic delay plugin (mono) * ZamEQ2 Parametric equaliser (mono) * ZamGate Gate plugin (mono) * ZamGateX2 Gate plugin (stereo) * ZamGEQ31 31 band graphic equaliser (mono) * ZamHeadX2 Acoustic HRTF stereo widener (stereo) * ZamTube Triode tube amp simulator (mono) * ZaMultiComp Multiband compressor (mono) * ZaMultiCompX2 Multiband compressor (stereo) * ZamDynamicEQ Dynamic equaliser * ZamPhono A collection filters for restoring vinyl records. * ZamVerb Stereo reverb plugin * ZamGrains Looper and rhythm slicer

This meta package of zam-plugins contains plugins for all supported frameworks.

MaintainerDebian Multimedia Maintainers <debian-multimedia@lists.debian.org>
Changed ByDennis Braun <snd@debian.org>
Sponsorsnd@debian.org
Distributionunstable
Architectureany all
VCSgit: https://salsa.debian.org/multimedia-team/zam-plugins.git (browse)
Closes#1064573
Popcon Installs2399
Binary NEWYes (new binary packages of a source already in sid)
Trackerhttps://tracker.debian.org/pkg/zam-plugins
Uploaded3 hours ago

New Package Report

.changes◂
Architecturesource amd64 all
Distributionunstable
DateThu, 29 Oct 2026 10:28:13 +0100
Sourcezam-plugins
Version4.5+ds-1
Changed-ByDennis Braun <snd@debian.org>
Changelog◂
zam-plugins (4.5+ds-1) unstable; urgency=medium
 .
   * New upstream version 4.5+ds
   * Provide seperate packages for each plugin type and jackd (Closes: #1064573)
   * Refresh patchset: Fix cross building and do not build au plugins
   * Add smoke autopkgtest for zam-plugins
     This test was created with AI assistance
   * Use the default ci config from salsa
   * Change B-D from pkg-config to pkgconf
   * Bump Standards-Version to 4.7.4
   * Bump dh-compat to 14
   * Update install files
   * Update d/watch to version 5
   * Remove redundant RRR field
   * Remove redundant priority optional field
   * Update git repository layout to follow DEP-14
.dsc◂
Priorityoptional
Componentmain
Package-Listzam-plugins deb sound optional arch=all
zam-plugins-clap deb sound optional arch=any
zam-plugins-jack deb sound optional arch=any
zam-plugins-ladspa deb sound optional arch=any
zam-plugins-lv2 deb sound optional arch=any
zam-plugins-vst deb sound optional arch=any
zam-plugins-vst3 deb sound optional arch=any
Sectionsound
debian/copyright◂
Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: zam-plugins
Upstream-Contact: Damien Zammit <damien@zamaudio.com>
Source: https://github.com/zamaudio/zam-plugins
Comment: We remove the lib dir and use zita-convolver4 from debian.
Files-Excluded:
 lib

Files: *
Copyright: 2013-2023 Damien Zammit <damien@zamaudio.com>
License: GPL-2+

Files: debian/*
Copyright:
 2013-2017 Jaromír Mikeš <mira.mikes@seznam.cz>
 2020-2023 Dennis Braun <snd@debian.org>
 2023 Olivier Humbert <trembuh@tuxfamily.org>
License: GPL-2+

Files:
 plugins/ZamNoise/Denoise.cpp
 plugins/ZamNoise/Denoise.hpp
Copyright: 2001 Jeffrey J. Welty
License: GPL-2+

Files: plugins/ZaMaximX2/artwork/zamaximx2.svg
       plugins/ZaMultiComp/artwork/zamulticomp.svg
       plugins/ZaMultiCompX2/artwork/zamulticompx2.svg
       plugins/ZamAutoSat/artwork/zamautosat.svg
       plugins/ZamChild670/artwork/zamchild670.svg
       plugins/ZamComp/artwork/zamcomp.svg
       plugins/ZamCompX2/artwork/zamcompx2.svg
       plugins/ZamDelay/artwork/zamdelay.svg
       plugins/ZamDynamicEQ/artwork/zamdynamiceq.svg
       plugins/ZamEQ2/artwork/zameq2.svg
       plugins/ZamGEQ31/artwork/zamgeq31.svg
       plugins/ZamGate/artwork/zamgate.svg
       plugins/ZamGateX2/artwork/zamgatex2.svg
       plugins/ZamGrains/artwork/zamgrains.svg
       plugins/ZamHeadX2/artwork/zamheadx2.svg
       plugins/ZamNoise/artwork/zamnoise.svg
       plugins/ZamPhono/artwork/zamphono.svg
       plugins/ZamPiano/artwork/zampiano.svg
       plugins/ZamSFZ/artwork/zamsfz.svg
       plugins/ZamSynth/artwork/zamsynth.svg
       plugins/ZamTube/artwork/zamtube.svg
       plugins/ZamVerb/artwork/zamverb.svg
Copyright: 2013-2022 Damien Zammit <damien@zamaudio.com>
License: CC-BY

Files:
 plugins/ZamSFZ/libsfz/sfz.cpp
 plugins/ZamSFZ/libsfz/sfz.h
Copyright: 2008-2009, Anders Dahnielson
License: GPL-2+

License: GPL-2+
 This program is free software: you can redistribute it and/or modify
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License: CC-BY
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     Adapted Material is always produced where the Licensed Material is
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DFSG Assistant LLM REVIEW 3 blocker, 3 important, 3 minor

This is an LLM based review using a Debian Inference based workflow. It was not written by a member of the DFSG team and has not been checked by one. It is not a decision on the package: it may be wrong, and it may have missed things.

Reviewed 2 hours ago.

Report◂

DFSG NEW review for zam-plugins version 4.5+ds-1

Summary

  • Licensing is DFSG-compliant and debian/copyright is accurate: No
  • Packaging is of good quality: Yes
  • Issues: 3 blocker, 3 important, 3 minor
  • debian/watch: version 5
  • debian/copyright: machine-readable
  • Scan before the review: nothing found

Licensing

The code is free (GPL-2+, ISC, Expat/MIT, CC-BY-4.0 and the permissive Cephes notice), and I found no non-free terms. But debian/copyright does not describe several files correctly: plugins/ZamSFZ/libsfz/sfz.cpp and sfz.h are said to be GPL-2+ Anders Dahnielson although the only licence statement (NOTICE.SFZero) makes them Steve Folta's MIT code; widgets/ZamWidgets.hpp carries Filipe Coelho's ISC header but is only covered by Files: * GPL-2+; plugins/ZamNoise/bessel.inc is Moshier's Cephes code with no stanza at all; plugins/ZamChild670 is GPL-2 only by Peter Raffensperger; Robin Gareus is missing for the two convolution.cpp/hpp pairs; the bundled Allstar4.ttf and Amperzand.ttf have no licence information; and the CC-BY stanza omits plugins/ZamEcho/artwork/zamecho.svg. The file is DEP-5 and its Format line is correct, so no replacement file is proposed.

Packaging

The packaging is sound: dpkg-buildflags hardening and LTO, compat 14, a correct split into six format packages plus a meta package, system zita-convolver instead of the removed lib/, working cross-build support, and a smoke autopkgtest. Build-Depends are resolvable (dpf-source, libzita-convolver-dev pulls libfftw3-dev, libgl-dev pulls libx11-dev), and Standards-Version 4.7.4 is current against Policy 4.7.4.1. Only minor things remain: the six packages that take over files from the old zam-plugins declare Replaces without the Breaks that Policy 7.6.1 prescribes, and the repeated binary descriptions are stale and, for -ladspa, inaccurate.

Issues

1. [blocker] [licensing] sfz.cpp/sfz.h are Steve Folta's MIT code but debian/copyright says GPL-2+ by Anders Dahnielson

  • Files: plugins/ZamSFZ/libsfz/sfz.cpp, plugins/ZamSFZ/libsfz/sfz.h, NOTICE.SFZero:1-19, debian/copyright:51-55
  • Basis: checked, in the package or with a reference tool
  • Evidence: NOTICE.SFZero: The libsfz file parser code in sfz.cpp and sfz.h was borrowed from SFZero, Copyright (C) 2012 Steve Folta, Permission is hereby granted, free of charge, .... debian/copyright: Files: plugins/ZamSFZ/libsfz/sfz.cpp plugins/ZamSFZ/libsfz/sfz.h / Copyright: 2008-2009, Anders Dahnielson / License: GPL-2+. Neither source file carries any header.
  • Problem: The only licence statement the package makes about these two files grants MIT (Expat) terms to Steve Folta; debian/copyright names a different holder and a different, stricter licence. This is an inaccurate copyright file, and the MIT notice is not reproduced in it.
  • Fix: Give these two files their own stanza naming Steve Folta (and Anders Dahnielson if his code is still present), with License: Expat and the full MIT text; NOTICE.SFZero can be cited as the source of the notice.

2. [blocker] [licensing] widgets/ZamWidgets.hpp is Filipe Coelho's ISC-licensed DPF code but is covered only by Files: * GPL-2+

  • Files: widgets/ZamWidgets.hpp:1-16, debian/copyright:9-11
  • Basis: checked, in the package or with a reference tool
  • Evidence: Header: DISTRHO Plugin Framework (DPF) Copyright (C) 2012-2016 Filipe Coelho <falktx@falktx.com> and Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. Files: * stanza: Copyright: 2013-2023 Damien Zammit <damien@zamaudio.com> / License: GPL-2+.
  • Problem: The file's own terms are ISC and its holder is Filipe Coelho, but debian/copyright attributes it only to Damien Zammit under GPL-2+. The file is included by 18 plugin UIs (e.g. plugins/ZamComp/ZamCompUI.hpp:23) and compiled into the plugins, so the missing holder and missing ISC text concern the shipped binaries too. The same ISC terms apply to DPF itself, which debian/rules copies from dpf-source and links in.
  • Fix: Add a stanza for widgets/* with both copyright holders and License: ISC (full ISC text), and note in a Comment that the DPF code linked in from dpf-source is under the same ISC terms.

3. [blocker] [licensing] bessel.inc is Cephes code by Stephen L. Moshier with no copyright or licence stanza

  • Files: plugins/ZamNoise/bessel.inc:71-89, plugins/ZamNoise/bessel.inc:276-294, debian/copyright:9-11
  • Basis: checked, in the package or with a reference tool
  • Evidence: Cephes Math Library Release 2.8: June, 2000 / Copyright 1984, 1987, 2000 by Stephen L. Moshier / What you see here may be used freely but it comes with no support or guarantee. The file is textually included by plugins/ZamNoise/Denoise.cpp:22 (#include "bessel.inc") and built into ZamNoise.
  • Problem: The holder and licence of a file compiled into a binary package are not in debian/copyright at all; the Cephes notice is not in /usr/share/common-licenses, so DEP-5 requires its text to be included. Files: * wrongly presents the file as Damien Zammit's GPL-2+ work.
  • Fix: Add Files: plugins/ZamNoise/bessel.inc with Copyright: 1984, 1987, 2000 Stephen L. Moshier and a stand-alone License: Cephes paragraph containing the quoted notice.

4. [important] [licensing] ZamChild670 is GPL-2 only by Peter Raffensperger but is recorded as GPL-2+ by Damien Zammit

  • Files: plugins/ZamChild670/wavechild670.h:7,18-19, plugins/ZamChild670/sidechainamplifier.h, plugins/ZamChild670/tubemodel.h, plugins/ZamChild670/variablemuamplifier.h, plugins/ZamChild670/wdfcircuits.h, plugins/ZamChild670/generatedwdfutilities.h, debian/copyright:9-11
  • Basis: checked, in the package or with a reference tool
  • Evidence: By Peter Raffensperger 10 July 2012 and License: Wavechild670 is licensed under the GNU GPL v2 license. The same header is in every .cpp/.h of the directory.
  • Problem: The holder is missing and the licence version is overstated: the grant is GPL v2, not "v2 or later", so Files: *'s GPL-2+ is inaccurate. The plugin is not built (it is absent from PLUGINS in Makefile:19), but the files are shipped in the source package and must be described correctly.
  • Fix: Add a stanza for plugins/ZamChild670/* (excluding artwork/zamchild670.svg, which is covered by the CC-BY stanza) with Copyright: 2012 Peter Raffensperger and License: GPL-2.

5. [important] [licensing] Files: * does not name Robin Gareus, holder of the convolution code built into ZamHeadX2 and ZamVerb

  • Files: plugins/ZamHeadX2/convolution.cpp:3, plugins/ZamHeadX2/convolution.hpp:3, plugins/ZamVerb/convolution.cpp:3, plugins/ZamVerb/convolution.hpp:3, debian/copyright:9-11
  • Basis: checked, in the package or with a reference tool
  • Evidence: Copyright (C) 2012 Robin Gareus <robin@gareus.org> followed by Copyright (C) 2017 Damien Zammit <damien@zamaudio.com> under GPL-2+ ("either version 2 ... or any later version").
  • Problem: A copyright holder of code compiled into two binary packages is absent from debian/copyright; Files: * names only Damien Zammit.
  • Fix: Add a stanza for these four files with both copyright lines and License: GPL-2+.

6. [important] [licensing] Bundled fonts Allstar4.ttf and Amperzand.ttf have no copyright or licence information

  • Files: plugins/ZaMaximX2/artwork/Allstar4.ttf, plugins/ZaMaximX2/artwork/Amperzand.ttf, plugins/ZaMultiCompX2/artwork/Allstar4.ttf, plugins/ZamDynamicEQ/artwork/Amperzand.ttf, debian/copyright:9-11
  • Basis: checked, in the package or with a reference tool
  • Evidence: Ten copies of each font under plugins/*/artwork/; the only references in the tree are font-family names inside the SVG artwork (e.g. font-family:Allstar4;-inkscape-font-specification:Allstar4). No licence or copyright file mentions them; Files: * attributes them to 2013-2023 Damien Zammit under GPL-2+.
  • Problem: Fonts are copyrightable works of unclear provenance; the package gives no evidence that they may be redistributed, and the blanket GPL-2+ claim in Files: * is unsupported. They are not used by the build or installed in any binary package, so they can equally be dropped.
  • Fix: Either document the fonts' holders and licences (with the licence text) in debian/copyright, or remove the unused .ttf files from the source package if their licensing cannot be established.

7. [minor] [licensing] CC-BY stanza omits plugins/ZamEcho/artwork/zamecho.svg

  • Files: plugins/ZamEcho/artwork/zamecho.svg:111, debian/copyright:26-49
  • Basis: checked, in the package or with a reference tool
  • Evidence: zamecho.svg contains <!-- License: creative commons attribution -->; the CC-BY stanza lists 22 SVG files but not this one, so it falls under Files: * License: GPL-2+.
  • Problem: A file whose author marked it CC-BY is described as GPL-2+, so the stanza does not match the file. The .png artwork and the generated *Artwork.cpp files that embed these images are likewise left under Files: * although they are derived from the CC-BY SVGs.
  • Fix: Add plugins/ZamEcho/artwork/zamecho.svg to the CC-BY stanza, and cover the exported PNG/Artwork.cpp artwork as CC-BY too if that is its source.

8. [minor] [packaging] The six split packages use Replaces without Breaks against the old zam-plugins

  • Files: debian/control:96, debian/control:151, debian/control:208, debian/control:265, debian/control:322, debian/control:379, debian/control:33-36
  • Basis: checked, in the package or with a reference tool
  • Evidence: Each of zam-plugins-jack/-clap/-ladspa/-lv2/-vst/-vst3 has Replaces: zam-plugins (<< 4.5+ds-1) but no Breaks; the only Breaks: is in the meta package against itself. Policy 7.6.1: Normally, "Breaks" should be used in conjunction with "Replaces", with exactly this split-package example.
  • Problem: The packages that take over the old package's files are the ones that need the pair; without Breaks, an older zam-plugins can be unpacked on top of the new packages and dpkg will hit a file conflict. The self-Breaks in the meta package does not protect them.
  • Fix: Add Breaks: zam-plugins (<< 4.5+ds-1) next to each subpackage's Replaces (and drop the ineffective self-reference in the meta package, or keep it, it is harmless).

9. [minor] [packaging] Binary descriptions omit ZamNoise and ZamEcho and the -ladspa description lists plugins it does not ship

  • Files: debian/control:23-89, debian/control:203-259
  • Basis: checked, in the package or with a reference tool
  • Evidence: Makefile:19 builds ... ZamGrains ZamNoise ZamEcho; each Description lists 17 plugins and never mentions ZamNoise or ZamEcho. plugins/ZaMultiComp/Makefile, plugins/ZamHeadX2/Makefile and plugins/ZamPhono/Makefile have no TARGETS += ladspa, yet their names appear in the -ladspa description.
  • Problem: The package descriptions do not match what the packages install: two built plugins are unlisted everywhere, and zam-plugins-ladspa advertises ZaMultiComp, ZamHeadX2 and ZamPhono that it does not contain.
  • Fix: Update the repeated plugin list to the 19 built plugins, and for -ladspa use the set that actually builds LADSPA targets (drop ZaMultiComp, ZamHeadX2, ZamPhono there).

Verified

  • Read every file under debian/ in full: control, rules, changelog, copyright, the six .install files, the five lintian overrides, patches/series and both patches, tests/control and tests/smoke, gbp.conf, source/format, upstream/metadata, README.source, README.get.source, gbp/postclone.sh. There are no maintainer scripts.
  • Inventoried the whole upstream tree (360 files) directory by directory, including .github/, widgets/ and all 24 plugin directories; read the header of every source-file group and every COPYING/NOTICE file, and grepped the tree (excluding .pc/) for Copyright, (C), ©, SPDX, Permission, GNU, Apache, MPL, public domain and "All rights reserved".
  • Prescan file NOTICE.DPF: it is DPF's ISC notice (Filipe Coelho). DPF source is not in the tarball (dpf/ is empty; debian/rules copies /usr/share/dpf from dpf-source), so it needs no stanza of its own; the ISC terms that do ship are in widgets/ZamWidgets.hpp, reported above.
  • Prescan file NOTICE.SFZero is the MIT notice covering plugins/ZamSFZ/libsfz/sfz.cpp and sfz.h; reported above, as are plugins/ZamHeadX2/convolution.cpp/.hpp, plugins/ZamVerb/convolution.cpp/.hpp, plugins/ZamNoise/bessel.inc and widgets/ZamWidgets.hpp.
  • The .cpp/.hpp headers of all other plugin sources are Damien Zammit's GPL-2+ or (ZamNoise/Denoise.*) Jeffrey J. Welty's GPL-2+, which has its own stanza; the CC-BY SVG notices match the 22 listed files apart from zamecho.svg.
  • Files: * is a valid catch-all; later stanzas override it, and no file is left without a stanza other than those reported. debian/copyright is DEP-5 with the exact copyright-format 1.0 Format URL, so no replacement file is proposed.
  • The *Artwork.cpp files say (Auto-generated binary data file); the corresponding .png and .svg artwork is present beside each of them, so the preferred form is shipped. No compiled binaries or libraries are in the source tree.
  • Build-Depends checked with apt-cache: dpf-source 1.7+ds1-1, ladspa-sdk, liblo-dev, libsamplerate0-dev, pkgconf; libzita-convolver-dev depends on libfftw3-dev (fftw3f), libgl-dev -> libglx-dev -> libx11-dev, so the pkg-config and X11/GL headers are satisfied. Autopkgtest deps (ffmpeg, lv2file 0.95-4, lilv-utils, ladspa-sdk) exist in main.
  • Standards-Version 4.7.4 against Policy 4.7.4.1: first two components match, so it is current. dh compat 14; ${misc:Depends}/${shlibs:Depends} need not be listed at this level but are harmless.
  • debian/rules installs into the source root with DESTDIR=$(CURDIR); dh_install(1) falls back to the current directory when debian/tmp is absent, and the six .install files cover every path the Makefile install target creates (usr/bin, usr/lib/{lv2,ladspa,vst,vst3,clap}), so dh_missing --fail-missing is satisfied.
  • Checked the build wiring: system zita-convolver (HAVE_ZITA_CONVOLVER=true) matches Files-Excluded: lib; the AU target is disabled by patch; the cross patch and CROSS_TOOLS/EXE_WRAPPER are consistent; chmod of the generated LV2 .ttl files happens after install.
  • CC-BY-4.0 artwork combined with GPL-2+ code is distributable because the "or later" option allows GPL-3.
  • The text files larger than 4 MiB are the raw float impulse tables in plugins/ZamVerb/*.inc; the scan saw only their first 4 MiB and found no licence wording in them.
  • uscan found the packaged version as the newest upstream release (upstream 4.5, packaged 4.5+ds).
  • Every pointer of debian/copyright to /usr/share/common-licenses names a file that is there (GPL-2).

Not confirmed

  • The provenance of the plugins/ZamVerb/*.inc impulse tables: raw comma-separated float data, no header, read as Damien Zammit's under Files: *; whether they were generated or taken from a third party cannot be determined from the package.
  • The contents of Allstar4.ttf and Amperzand.ttf were not inspected (binary fonts); no licence information exists anywhere in the package, and any copyright/licence metadata inside the font files could not be read.
  • That the plugins//artwork/.png files are exports of the CC-BY SVGs (used for the zamecho/PNG part of the artwork issue) is inferred from the artwork layout and the Inkscape export metadata, not directly verified.
  • The autopkgtest was not run and the build was not performed; the lv2file invocation and port counting in debian/tests/smoke were not exercised.
  • debian/watch looks at github.com/zamaudio/@package@, but the Source field of debian/copyright names github.com/zamaudio/zam-plugins. Whether these are the same upstream was not checked.
  • debian/watch looks at github.com/zamaudio/@package@, but Repository in debian/upstream/metadata names github.com/zamaudio/zam-plugins. Whether these are the same upstream was not checked.

Proposed changes

None.

Uploader's response to the LLM review

Waiting for the uploader's response until , because the review found serious issues.

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