DFSG NEW Queue

DFSG, Licensing & New Packages Team

Review: zam-plugins 4.5+ds-3

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 * ZamNoise Noise reduction based on Gnome Wave Cleaner * ZamEcho Single parameter plugin suitable for DJ transition

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)
Popcon Installs2431
Binary NEWYes (new binary packages of a source already in sid)
Trackerhttps://tracker.debian.org/pkg/zam-plugins
Uploaded1 day ago

New Package Report

.changes◂
Sourcezam-plugins
Version4.5+ds-3
Changed-ByDennis Braun <snd@debian.org>
Architecturesource amd64 all
Distributionunstable
DateFri, 06 Nov 2026 15:03:39 +0100
Changelog◂
zam-plugins (4.5+ds-3) unstable; urgency=medium
 .
   * Refresh Breaks and Replaces and refresh the plugin lists again
   * Remove the ttf files with no license and list files under GPL-2
.dsc◂
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
Priorityoptional
Componentmain
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 ttf fonts because of no license
 and the lib dir and we use zita-convolver4 from debian.
Files-Excluded:
 lib
 plugins/*/artwork/Allstar4.ttf
 plugins/*/artwork/Amperzand.ttf

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/ZamChild670/generatedwdfutilities.h
 plugins/ZamChild670/sidechainamplifier.cpp
 plugins/ZamChild670/sidechainamplifier.h
 plugins/ZamChild670/tubemodel.cpp
 plugins/ZamChild670/tubemodel.h
 plugins/ZamChild670/variablemuamplifier.cpp
 plugins/ZamChild670/variablemuamplifier.h
 plugins/ZamChild670/wavechild670.cpp
 plugins/ZamChild670/wavechild670.h
 plugins/ZamChild670/wdfcircuits.cpp
 plugins/ZamChild670/wdfcircuits.h
Copyright: 2012 Peter Raffensperger
License: GPL-2

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

Files:
 plugins/ZamVerb/convolution.hpp
 plugins/ZamVerb/convolution.cpp
 plugins/ZamHeadX2/convolution.hpp
 plugins/ZamHeadX2/convolution.cpp
Copyright:
 2012 Robin Gareus <robin@gareus.org>
 2017 Damien Zammit <damien@zamaudio.com>
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/ZamEcho/artwork/zamecho.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/ZamNoise/bessel.inc
Copyright: 1984, 1987, 2000 Stephen L. Moshier
License: Cephes

License: Cephes
 Cephes Math Library Release 2.8:  June, 2000
 Copyright 1984, 1987, 2000 by Stephen L. Moshier
 .
 Some software in this archive may be from the book _Methods and
 Programs for Mathematical Functions_ (Prentice-Hall, 1989) or
 from the Cephes Mathematical Library, a commercial product. In
 either event, it is copyrighted by the author.  What you see here
 may be used freely but it comes with no support or guarantee.
 .
 The two known misprints in the book are repaired here in the
 source listings for the gamma function and the incomplete beta
 integral.

Files: plugins/ZamSFZ/libsfz/sfz.cpp
       plugins/ZamSFZ/libsfz/sfz.h
Copyright: 2012 Steve Folta
           2008-2009 Anders Dahnielson
Comment: The code was taken from the SFZero project. The license
 information can be found in the NOTICE.SFZero file within the source code
License: Expat
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:
 .
 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.
 .
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 DEALINGS IN THE SOFTWARE.

Files: widgets/ZamWidgets.hpp
Copyright: 2012-2016 Filipe Coelho <falktx@falktx.com>
License: ISC

License: GPL-2
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; version 2 of the License.
 .
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 .
 On Debian systems, the complete text of the GNU General Public
 License version 2 can be found in `/usr/share/common-licenses/GPL-2'.

License: GPL-2+
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 2 of the License, or
 (at your option) any later version.
 .
 This package is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 .
 On Debian systems, the complete text of the GNU General Public
 License version 2 can be found in `/usr/share/common-licenses/GPL-2'.
 .
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <https://www.gnu.org/licenses/>.

License: CC-BY
 Creative Commons Attribution 4.0 International Public License
 .
 By exercising the Licensed Rights (defined below), You accept and agree
 to be bound by the terms and conditions of this Creative Commons
 Attribution 4.0 International Public License ("Public License"). To the
 extent this Public License may be interpreted as a contract, You are
 granted the Licensed Rights in consideration of Your acceptance of
 these terms and conditions, and the Licensor grants You such rights in
 consideration of benefits the Licensor receives from making the
 Licensed Material available under these terms and conditions.
 .
 Section 1 -- Definitions.
 .
  a. Adapted Material means material subject to Copyright and Similar
     Rights that is derived from or based upon the Licensed Material
     and in which the Licensed Material is translated, altered,
     arranged, transformed, or otherwise modified in a manner requiring
     permission under the Copyright and Similar Rights held by the
     Licensor. For purposes of this Public License, where the Licensed
     Material is a musical work, performance, or sound recording,
     Adapted Material is always produced where the Licensed Material is
     synched in timed relation with a moving image.
 .
  b. Adapter's License means the license You apply to Your Copyright
     and Similar Rights in Your contributions to Adapted Material in
     accordance with the terms and conditions of this Public License.
 .
  c. Copyright and Similar Rights means copyright and/or similar rights
     closely related to copyright including, without limitation,
     performance, broadcast, sound recording, and Sui Generis Database
     Rights, without regard to how the rights are labeled or
     categorized. For purposes of this Public License, the rights
     specified in Section 2(b)(1)-(2) are not Copyright and Similar
     Rights.
 .
  d. Effective Technological Measures means those measures that, in the
     absence of proper authority, may not be circumvented under laws
     fulfilling obligations under Article 11 of the WIPO Copyright
     Treaty adopted on December 20, 1996, and/or similar international
     agreements.
 .
  e. Exceptions and Limitations means fair use, fair dealing, and/or
     any other exception or limitation to Copyright and Similar Rights
     that applies to Your use of the Licensed Material.
 .
  f. Licensed Material means the artistic or literary work, database,
     or other material to which the Licensor applied this Public
     License.
 .
  g. Licensed Rights means the rights granted to You subject to the
     terms and conditions of this Public License, which are limited to
     all Copyright and Similar Rights that apply to Your use of the
     Licensed Material and that the Licensor has authority to license.
 .
  h. Licensor means the individual(s) or entity(ies) granting rights
     under this Public License.
 .
  i. Share means to provide material to the public by any means or
     process that requires permission under the Licensed Rights, such
     as reproduction, public display, public performance, distribution,
     dissemination, communication, or importation, and to make material
     available to the public including in ways that members of the
     public may access the material from a place and at a time
     individually chosen by them.
 .
  j. Sui Generis Database Rights means rights other than copyright
     resulting from Directive 96/9/EC of the European Parliament and of
     the Council of 11 March 1996 on the legal protection of databases,
     as amended and/or succeeded, as well as other essentially
     equivalent rights anywhere in the world.
 .
  k. You means the individual or entity exercising the Licensed Rights
     under this Public License. Your has a corresponding meaning.
 .
 Section 2 -- Scope.
 .
  a. License grant.
 .
       1. Subject to the terms and conditions of this Public License,
          the Licensor hereby grants You a worldwide, royalty-free,
          non-sublicensable, non-exclusive, irrevocable license to
          exercise the Licensed Rights in the Licensed Material to:
 .
            a. reproduce and Share the Licensed Material, in whole or
               in part; and
 .
            b. produce, reproduce, and Share Adapted Material.
 .
       2. Exceptions and Limitations. For the avoidance of doubt, where
          Exceptions and Limitations apply to Your use, this Public
          License does not apply, and You do not need to comply with
          its terms and conditions.
 .
       3. Term. The term of this Public License is specified in Section
          6(a).
 .
       4. Media and formats; technical modifications allowed. The
          Licensor authorizes You to exercise the Licensed Rights in
          all media and formats whether now known or hereafter created,
          and to make technical modifications necessary to do so. The
          Licensor waives and/or agrees not to assert any right or
          authority to forbid You from making technical modifications
          necessary to exercise the Licensed Rights, including
          technical modifications necessary to circumvent Effective
          Technological Measures. For purposes of this Public License,
          simply making modifications authorized by this Section 2(a)
          (4) never produces Adapted Material.
 .
       5. Downstream recipients.
 .
            a. Offer from the Licensor -- Licensed Material. Every
               recipient of the Licensed Material automatically
               receives an offer from the Licensor to exercise the
               Licensed Rights under the terms and conditions of this
               Public License.
 .
            b. No downstream restrictions. You may not offer or impose
               any additional or different terms or conditions on, or
               apply any Effective Technological Measures to, the
               Licensed Material if doing so restricts exercise of the
               Licensed Rights by any recipient of the Licensed
               Material.
 .
       6. No endorsement. Nothing in this Public License constitutes or
          may be construed as permission to assert or imply that You
          are, or that Your use of the Licensed Material is, connected
          with, or sponsored, endorsed, or granted official status by,
          the Licensor or others designated to receive attribution as
          provided in Section 3(a)(1)(A)(i).
 .
  b. Other rights.
 .
       1. Moral rights, such as the right of integrity, are not
          licensed under this Public License, nor are publicity,
          privacy, and/or other similar personality rights; however, to
          the extent possible, the Licensor waives and/or agrees not to
          assert any such rights held by the Licensor to the limited
          extent necessary to allow You to exercise the Licensed
          Rights, but not otherwise.
 .
       2. Patent and trademark rights are not licensed under this
          Public License.
 .
       3. To the extent possible, the Licensor waives any right to
          collect royalties from You for the exercise of the Licensed
          Rights, whether directly or through a collecting society
          under any voluntary or waivable statutory or compulsory
          licensing scheme. In all other cases the Licensor expressly
          reserves any right to collect such royalties.
 .
 Section 3 -- License Conditions.
 .
 Your exercise of the Licensed Rights is expressly made subject to the
 following conditions.
 .
  a. Attribution.
 .
       1. If You Share the Licensed Material (including in modified
          form), You must:
 .
            a. retain the following if it is supplied by the Licensor
               with the Licensed Material:
 .
                 i. identification of the creator(s) of the Licensed
                    Material and any others designated to receive
                    attribution, in any reasonable manner requested by
                    the Licensor (including by pseudonym if
                    designated);
 .
                ii. a copyright notice;
 .
               iii. a notice that refers to this Public License;
 .
                iv. a notice that refers to the disclaimer of
                    warranties;
 .
                 v. a URI or hyperlink to the Licensed Material to the
                    extent reasonably practicable;
 .
            b. indicate if You modified the Licensed Material and
               retain an indication of any previous modifications; and
 .
            c. indicate the Licensed Material is licensed under this
               Public License, and include the text of, or the URI or
               hyperlink to, this Public License.
 .
       2. You may satisfy the conditions in Section 3(a)(1) in any
          reasonable manner based on the medium, means, and context in
          which You Share the Licensed Material. For example, it may be
          reasonable to satisfy the conditions by providing a URI or
          hyperlink to a resource that includes the required
          information.
 .
       3. If requested by the Licensor, You must remove any of the
          information required by Section 3(a)(1)(A) to the extent
          reasonably practicable.
 .
       4. If You Share Adapted Material You produce, the Adapter's
          License You apply must not prevent recipients of the Adapted
          Material from complying with this Public License.
 .
 Section 4 -- Sui Generis Database Rights.
 .
 Where the Licensed Rights include Sui Generis Database Rights that
 apply to Your use of the Licensed Material:
 .
  a. for the avoidance of doubt, Section 2(a)(1) grants You the right
     to extract, reuse, reproduce, and Share all or a substantial
     portion of the contents of the database;
 .
  b. if You include all or a substantial portion of the database
     contents in a database in which You have Sui Generis Database
     Rights, then the database in which You have Sui Generis Database
     Rights (but not its individual contents) is Adapted Material; and
 .
  c. You must comply with the conditions in Section 3(a) if You Share
     all or a substantial portion of the contents of the database.
 .
 For the avoidance of doubt, this Section 4 supplements and does not
 replace Your obligations under this Public License where the Licensed
 Rights include other Copyright and Similar Rights.
 .
 Section 5 -- Disclaimer of Warranties and Limitation of Liability.
 .
  a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE
     EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS
     AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF
     ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS,
     IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION,
     WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR
     PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS,
     ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT
     KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT
     ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.
 .
  b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE
     TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,
     NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,
     INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES,
     COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR
     USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN
     ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR
     DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR
     IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.
 .
  c. The disclaimer of warranties and limitation of liability provided
     above shall be interpreted in a manner that, to the extent
     possible, most closely approximates an absolute disclaimer and
     waiver of all liability.
 .
 Section 6 -- Term and Termination.
 .
  a. This Public License applies for the term of the Copyright and
     Similar Rights licensed here. However, if You fail to comply with
     this Public License, then Your rights under this Public License
     terminate automatically.
 .
  b. Where Your right to use the Licensed Material has terminated under
     Section 6(a), it reinstates:
 .
       1. automatically as of the date the violation is cured, provided
          it is cured within 30 days of Your discovery of the
          violation; or
 .
       2. upon express reinstatement by the Licensor.
 .
     For the avoidance of doubt, this Section 6(b) does not affect any
     right the Licensor may have to seek remedies for Your violations
     of this Public License.
 .
  c. For the avoidance of doubt, the Licensor may also offer the
     Licensed Material under separate terms or conditions or stop
     distributing the Licensed Material at any time; however, doing so
     will not terminate this Public License.
 .
  d. Sections 1, 5, 6, 7, and 8 survive termination of this Public
     License.
 .
 Section 7 -- Other Terms and Conditions.
 .
  a. The Licensor shall not be bound by any additional or different
     terms or conditions communicated by You unless expressly agreed.
 .
  b. Any arrangements, understandings, or agreements regarding the
     Licensed Material not stated herein are separate from and
     independent of the terms and conditions of this Public License.
 .
 Section 8 -- Interpretation.
 .
  a. For the avoidance of doubt, this Public License does not, and
     shall not be interpreted to, reduce, limit, restrict, or impose
     conditions on any use of the Licensed Material that could lawfully
     be made without permission under this Public License.
 .
  b. To the extent possible, if any provision of this Public License is
     deemed unenforceable, it shall be automatically reformed to the
     minimum extent necessary to make it enforceable. If the provision
     cannot be reformed, it shall be severed from this Public License
     without affecting the enforceability of the remaining terms and
     conditions.
 .
  c. No term or condition of this Public License will be waived and no
     failure to comply consented to unless expressly agreed to by the
     Licensor.
 .
  d. Nothing in this Public License constitutes or may be interpreted
     as a limitation upon, or waiver of, any privileges and immunities
     that apply to the Licensor or You, including from the legal
     processes of any jurisdiction or authority.

License: ISC
 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.
 .
 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
 TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
 NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
 IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

DFSG Assistant LLM REVIEW 1 blocker, 0 important, 4 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 1 day ago.

Report◂

DFSG NEW review for zam-plugins version 4.5+ds-3

Summary

  • Licensing is DFSG-compliant and debian/copyright is accurate: No
  • Packaging is of good quality: Yes
  • Issues: 1 blocker, 0 important, 4 minor
  • debian/watch: version 5
  • debian/copyright: machine-readable
  • Scan before the review: nothing found

Licensing

Every file in the tree is free-licensed, and the licences combine: GPL-2+ for Damien Zammit's code and most third-party parts, GPL-2-only for Peter Raffensperger's Wavechild670 files in plugins/ZamChild670 (compatible with the rest), plus ISC, Expat, Cephes, CC BY 4.0 and STK-4.3, all DFSG-free. debian/copyright is nevertheless inaccurate and incomplete. plugins/ZamPiano/instrument.hpp and PianoNote.cpp are Romain Michon's 2011 code, declared licence: STK-4.3, but no Files stanza names them, so they fall under Files: * as Damien Zammit's GPL-2+ work; the holder is missing and the STK-4.3 text is absent. The artwork stanza also uses the short name CC-BY for material that is actually CC BY 4.0, which copyright-format section 7.1 defines as CC BY 1.0-3.0.

Packaging

The packaging is sound: a clean split into one package per plugin format plus the JACK clients and an empty meta package, debhelper compat 14 rules with hardening, LTO and a verbose/terse switch, working Breaks/Replaces for the pre-split versions, DEP-3 patches, an autopkgtest that actually loads the LV2 and LADSPA plugins, current Standards-Version, and Vcs-*/Homepage/upstream metadata in place. Remaining problems are small: the ladspa and vst package descriptions list the wrong plugin sets, the lintian overrides contain a self-referential duplicate-override-context line, and libfftw3-dev is only an indirect build dependency.

Issues

blocker licensing 1. debian/copyright credits plugins/ZamPiano/instrument.hpp and PianoNote.cpp to Damien Zammit as GPL-2+, but they are Romain Michon's STK-4.3 code ◂
  • Files: debian/copyright:12-14, plugins/ZamPiano/instrument.hpp:1-3, plugins/ZamPiano/PianoNote.cpp:5-6
  • Basis: checked, in the package or with a reference tool
  • Evidence: instrument.hpp: //Set of C++ wave table function / //©Romain Michon (rmichon@ccrma.stanford.edu), 2011 / //licence: STK-4.3; PianoNote.cpp: //Parameters for piano.dsp / ////(c) Romain Michon (rmichon@ccrma.stanford.edu), 2011. debian/copyright has no stanza matching plugins/ZamPiano/* (the only mention of the directory is plugins/ZamPiano/artwork/zampiano.svg in the CC-BY stanza at line 72), so both files fall under Files: *: Copyright: 2013-2023 Damien Zammit <damien@zamaudio.com> / License: GPL-2+.
  • Problem: The files are not Damien Zammit's GPL-2+ work. instrument.hpp is Romain Michon's look-up-table helper for piano.dsp, carries his copyright and declares STK-4.3, and it embeds STK wavetable data (readMarmstk1); PianoNote.cpp holds the piano.dsp parameter tables and carries the same (c) line. The STK-4.3 licence requires its notice to be reproduced, and it is not a licence in /usr/share/common-licenses, so debian/copyright must carry its text; the file itself only keeps the pointer licence: STK-4.3. As written the copyright file names the wrong holder and the wrong licence and omits a required licence text, contrary to Policy 12.5 and copyright-format 5.2 and 6.7.
  • Fix: Add a Files stanza for plugins/ZamPiano/instrument.hpp and plugins/ZamPiano/PianoNote.cpp with Copyright: 2011 Romain Michon <rmichon@ccrma.stanford.edu> and License: STK-4.3, plus a stand-alone License: STK-4.3 paragraph containing the full STK 4.3 licence text (including STK's own copyright holders).
minor licensing 2. The artwork stanza uses the short name CC-BY for CC BY 4.0, which that short name does not denote ◂
  • Files: debian/copyright:54-78, debian/copyright:157
  • Basis: checked, in the package or with a reference tool
  • Evidence: Files stanza listing the 23 plugins/*/artwork/*.svg files ends with License: CC-BY, and the stand-alone paragraph it refers to (line 157) is Creative Commons Attribution 4.0 International Public License.
  • Problem: copyright-format 7.1 defines CC-BY as the Creative Commons Attribution licence 1.0, 2.0, 2.5 and 3.0, and says short names "must not be used to refer to any other licenses". The files are CC BY 4.0, whose short name is CC-BY-4.0 (the text is also provided as /usr/share/common-licenses/CC-BY-4.0), so the file misstates the licence version to any machine parser.
  • Fix: Use CC-BY-4.0 as the short name in that stanza and in the stand-alone paragraph; referring to /usr/share/common-licenses/CC-BY-4.0 instead of embedding the 300-line text is optional.
minor packaging 3. zam-plugins-ladspa lists ZamHeadX2 and ZaMultiComp, which build no LADSPA plugin, and zam-plugins-vst omits ZamGrains, ZamPhono and ZamVerb, which do build VST2 ◂
  • Files: debian/control:217-275, debian/control:339-395, plugins/ZamHeadX2/Makefile, plugins/ZaMultiComp/Makefile, plugins/ZamGrains/Makefile, plugins/ZamPhono/Makefile, plugins/ZamVerb/Makefile
  • Basis: checked, in the package or with a reference tool
  • Evidence: The ladspa description has bullets * ZamHeadX2 and * ZaMultiComp, but plugins/ZamHeadX2/Makefile lists only TARGETS += jack, lv2_sep, vst2, vst3, clap and plugins/ZaMultiComp/Makefile only jack, lv2_sep, vst2, vst3, clap - no TARGETS += ladspa; the vst description jumps from * ZamDynamicEQ to * ZamNoise, omitting ZamGrains, ZamPhono and ZamVerb, whose Makefiles all have TARGETS += vst2.
  • Problem: The 4.5+ds-2 changelog says these lists were fixed, but they are still wrong: users are told a package contains ZamHeadX2 and ZaMultiComp LADSPA plugins it does not have, and are not told about three VST2 plugins it does contain.
  • Fix: Drop the ZamHeadX2 and ZaMultiComp bullets from the zam-plugins-ladspa description and add ZamGrains, ZamPhono and ZamVerb to the zam-plugins-vst description (or replace the per-plugin lists with a note that not every plugin provides every format).
minor packaging 4. The lintian-override files override duplicate-override-context with the override file itself as context, silencing lintian's own warning instead of the tag the comment describes ◂
  • Files: debian/zam-plugins-lv2.lintian-overrides:3-4, debian/zam-plugins-vst.lintian-overrides:3-4, debian/zam-plugins-vst3.lintian-overrides:3-4, debian/zam-plugins-clap.lintian-overrides:3-4, debian/zam-plugins-ladspa.lintian-overrides:1-2
  • Basis: checked, in the package or with a reference tool
  • Evidence: # Fonts are embedded specifically for rendering the plugin GUI artwork followed by duplicate-override-context (lines 4 5) [usr/share/lintian/overrides/zam-plugins-lv2]; the ladspa file has the same pair with (lines 2 3), while that file has two lines.
  • Problem: The tag being overridden is lintian's diagnostic about duplicate overrides, and its context is the override file itself, citing line numbers that no longer exist. The result is dead weight that suppresses lintian's report about overrides while the embedded DejaVu font the comment is about (it comes in through dpf-source, which Depends on fonts-dejavu-core) stays unoverridden.
  • Fix: Delete these lines and their comment from all five files, or, if the embedded font really needs an override, replace them with an override for the tag lintian actually emits for it.
minor packaging 5. Build-Depends has no libfftw3-dev although three plugin Makefiles ask pkg-config for fftw3f; it only arrives transitively through libzita-convolver-dev ◂
  • Files: debian/control, plugins/ZamHeadX2/Makefile, plugins/ZamVerb/Makefile, plugins/ZamNoise/Makefile
  • Basis: inferred from what was read, not seen directly
  • Evidence: ZamHeadX2 and ZamVerb Makefiles: BASE_FLAGS += $(shell $(PKG_CONFIG) --cflags samplerate fftw3f) and LINK_FLAGS += $(shell $(PKG_CONFIG) --libs fftw3f samplerate); ZamNoise Makefile: $(PKG_CONFIG) --cflags fftw3f. Build-Depends lists libzita-convolver-dev (>= 4.0.0) but not libfftw3-dev, and apt-cache shows libzita-convolver-dev Depends: libfftw3-dev, libzita-convolver4 (= ...).
  • Problem: The build works today only because libzita-convolver-dev happens to depend on libfftw3-dev; if that dependency is ever dropped, the fftw3f.pc lookup returns nothing and the link of ZamHeadX2, ZamVerb and ZamNoise fails. A package should name, in Build-Depends, every package whose headers or pkg-config files its build uses (Policy 7.7 and 4.9).
  • Fix: Add libfftw3-dev to Build-Depends.
Verified ◂
  • Prescan author check: my own grep of the whole tree for Copyright, (c), ©, SPDX-License-Identifier, Permission is hereby granted, All rights reserved and public domain found exactly the holders named in debian/copyright, except Romain Michon in plugins/ZamPiano, which is reported above; no other holder is missing.
  • The six files over 4 MiB that the prescan could only scan partly are plugins/ZamVerb/hallA_4.inc, hallB_4.inc, plate_4.inc, roomA_4.inc, roomB_4.inc and studioB_4.inc (4.6-7.6 MB each): comma-separated float arrays #included by plugins/ZamVerb/ZamVerbImpulses.cpp as fixed reverb impulse responses. Upstream data, not build output, and covered by Files: *; studioA_4.inc (2.7 MB) is the same kind of file.
  • The 100 files plugins/ZamHeadX2/l1-l50 and r1-r50 (101 KB each) are float arrays #included by plugins/ZamHeadX2/convolution.cpp to fill static const float fir_left[50][25][200] and fir_right; upstream data, covered by Files: *, not build output.
  • No *.ttf survives the repack and there is no lib/ directory, as debian/copyright's Files-Excluded and Comment state; dpf/ is an empty directory (DPF is taken at build time from /usr/share/dpf of dpf-source 1.7+ds1-1), so no DPF source and no ISC stanza for it is needed.
  • All 23 plugins//artwork/.svg files are exactly the 23 listed in the CC-BY stanza, name for name; the bitmaps (knob.png, ledred.png, toggle*.png, *.png) and the generated *Artwork.cpp files are data covered by Files: *, by the same author.
  • Third-party licences match the notices: plugins/ZamChild670's 12 files say Wavechild670 is licensed under the GNU GPL v2 license (Peter Raffensperger); plugins/ZamNoise/Denoise.{cpp,hpp} are GPL-2+ (Jeffrey J. Welty, Gnome Wave Cleaner, either version 2 of the License, or (at your option) any later version); plugins/{ZamVerb,ZamHeadX2}/convolution.{cpp,hpp} are GPL-2+ (Robin Gareus 2012, modified by Damien Zammit 2017); plugins/ZamNoise/bessel.inc is Cephes with its text reproduced; plugins/ZamSFZ/libsfz/sfz.{cpp,h} are Expat with its text reproduced (NOTICE.SFZero also in the tree); widgets/ZamWidgets.hpp is ISC from Filipe Coelho with its text reproduced. GPL-2-only ZamChild670 code combines with the GPL-2+ code without conflict.
  • No non-free terms anywhere: no non-commercial, no-derivatives, no-modification or field-of-use wording, no All rights reserved applied to code; the Cephes text ("may be used freely but it comes with no support or guarantee") is the permissive grant Debian has long accepted.
  • Packaging metadata: Standards-Version 4.7.4 matches the current Policy 4.7.x and is not an issue; debhelper-compat (= 14); dpf-source (1.7+ds1-1), libzita-convolver-dev (4.0.3, Multi-Arch: same), ladspa-sdk, lv2file (0.95-4) and lilv-utils (0.28.0) all exist in unstable, so the declared build and test dependencies are installable.
  • Installed layout matches upstream's install target and the .install manifests (only /usr/bin and /usr/lib/{ladspa,lv2,vst,vst3,clap}); the six binary packages cover every format the pre-split package had, and each contains Breaks/Replaces: zam-plugins (<< 4.5+ds-3), which covers the old combined package and the two earlier 4.5+ds uploads.
  • Both patches in debian/patches have DEP-3 headers (From, Date, Subject), debian/tests/control pulls what the smoke script needs (@, ffmpeg, ladspa-sdk, lilv-utils, lv2file), and the script runs every LV2 plugin on generated audio, every LADSPA plugin, and an ldd check on all shipped objects.
  • Coverage: every file under debian/ read except debian/watch; the heads of all source files carrying a licence or copyright line were read, plus COPYING, NOTICE.DPF, NOTICE.SFZero, README.md and the upstream changelog.
  • 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 ◂
  • Where the impulse-response data in plugins/ZamHeadX2/l*,r* and plugins/ZamVerb/*.inc came from: nothing in the tree says, and neither dataset has its own notice, so I assumed they are upstream's own measurements or derivations, as Files: * states.
  • plugins/ZamSFZ/libsfz/sfz.cpp and sfz.h contain no licence header at all; NOTICE.SFZero names only Steve Folta, while debian/copyright also credits Anders Dahnielson, whose terms could not be checked.
  • Whether the LADSPA/VST/CLAP sets in each package match exactly what gets built also depends on DPF's Makefile.plugins.mk from dpf-source, which is not part of this source package; I checked only the plugins' own Makefiles.
  • Cross builds: debian/rules exports an EXE_WRAPPER=qemu- and cross compilers but declares no qemu Build-Depends, so a cross build may fail when dpf/utils/lv2_ttl_generator is run. Not an archive build, so not reported as an issue.
  • The smoke test uses lv2file -n and --ignore-clipping; lv2file is not installed on the reviewing system, so I could not check that those options do what the script expects.
  • 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

The uploader rejected this upload in response to the review.

Review Information

rejected — allocated to dfsg-uploader 10 hours ago, started 10 hours ago, completed 10 hours ago.

Final Comment

The uploader rejected this upload in response to the automated (LLM) review of it, so that they can fix the problems it found and upload again.

Other Reviews of this Package

VersionHashAllocatedCompletedReviewerStatusDetails
4.5+ds-2 a5c038b1… 2026-11-02 22:30 2026-11-06 15:32 eamanu rejected VIEW
4.5+ds-2 a5c038b1… 2026-11-06 15:32 2026-11-06 15:32 dfsg-uploader rejected VIEW
4.5+ds-1 1392fb70… 2026-10-30 17:00 2026-10-30 17:00 dfsg-uploader rejected VIEW

Back to Dashboard | View all reviews for this package