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brew

codec2 mit Homebrew, apk, apt, dnf, MacPorts, Nix, pacman, zypper installieren

Prüfe Installationswege, Executables, Metadaten und Sicherheitshinweise für codec2 in AI-Agent-Workflows.

InstallationsbefehlSicherheitshinweise

Installation

Weitere Installationsbefehle

macOS

Homebrewverifiziert · 100%
brew install codec2

local Homebrew formula metadata

MacPortsverifiziert · 94%
sudo port install codec2

MacPorts ports tree · audio/codec2/Portfile · Quelle: api.github.com

Linux

Alpine Linux apkverifiziert · 92%
sudo apk add codec2

Alpine Linux edge package indexes · codec2 · Quelle: dl-cdn.alpinelinux.org

Debian aptverifiziert · 92%
sudo apt install codec2

Debian stable package indexes · codec2 · Quelle: deb.debian.org

Fedora dnfverifiziert · 92%
sudo dnf install codec2

Fedora Rawhide package metadata · codec2 · Quelle: dl.fedoraproject.org

Nixverifiziert · 92%
nix profile install nixpkgs#codec2

nixpkgs package indexes · pkgs/by-name/co/codec2/package.nix · Quelle: api.github.com

Arch Linux pacmanverifiziert · 92%
sudo pacman -S codec2

Arch Linux sync databases · codec2 · Quelle: geo.mirror.pkgbuild.com

openSUSE zypperverifiziert · 92%
sudo zypper install codec2

openSUSE Tumbleweed package metadata · codec2 · Quelle: download.opensuse.org

Überblick

Paketzusammenfassung

Open source speech codec

Befehle und Aliase

  • c2dec
  • c2demo
  • c2enc
  • c2sim

Verlauf

Projektgeschichte und Nutzung

Codec 2 is an LGPL open-source low-bit-rate speech codec written in C for communications-quality speech around 700 to 3200 bit/s. Its main application is low-bandwidth HF/VHF digital radio, where open codecs are important because many comparable vocoders have historically been proprietary or patent-encumbered.

Projektgeschichte

David Rowe announced the project on 2009-08-21 in a Rowetel post titled Open Source Low Rate Speech Codec Part 1, describing a plan for a free low-bit-rate speech codec initially targeting 2400 bit/s communications-quality speech. The motivation was explicitly tied to ham radio, low-bandwidth digital radio, and the lack of open sub-5 kbit/s speech codecs.

The current Codec 2 README says the project is C99, LGPL 2.1, and includes the FreeDV API, HF OFDM and FSK modems, FEC, packet-data APIs, and embedded FreeDV support. In July 2023 the repository was refactored, with older code moved to `drowe67/codec2-dev`.

The Rowetel Codec 2 page says the codec fills a gap below 5000 bit/s and integrates with FreeDV, an open-source digital voice protocol that combines modems, codecs, and FEC.

Adoptionsgeschichte

Codec 2 has unusually broad package-manager distribution for a specialized DSP library: the input package facts list Alpine, Homebrew, Debian, Fedora/DNF, MacPorts, Nix, Arch/pacman, Ubuntu, and openSUSE/Zypper. That reflects its use as both a library and a command-line toolkit in radio and audio stacks.

The official FreeDV documentation shows Codec 2 modes inside multiple FreeDV HF and VHF modes from 2012 onward, including 1600, 700C, 700D, 700E, 2400A, and 2400B. This is adoption through an application protocol rather than a standalone end-user CLI alone.

Wie es verwendet wird

The README documents simple command-line workflows with `c2enc`, `c2dec`, `c2demo`, and `c2sim`, including one-liners that encode raw speech, decode it, and play it through ALSA tools. It also documents FreeDV transmit and receive programs, modem programs, LDPC utilities, and build instructions for Linux, Windows cross-compilation, Android, and microcontrollers.

In practice, Codec 2 is used by developers and radio experimenters as a codec library, a set of command-line demonstrations, and the speech-coding component of FreeDV digital voice modes.

Warum Paket-Nerds sich dafür interessieren

Codec 2 matters to package maintainers because it is a rare open implementation in the very-low-bit-rate speech codec space, packaged widely despite being specialized DSP software. It brings together C libraries, demo CLIs, radio modem tooling, Octave test/development scripts, embedded targets, and FreeDV protocol support.

It is also a good example of why package histories are not just download counts: the package is important because downstream radio applications, Linux distributions, and experimenters need an auditable open codec where proprietary alternatives such as AMBE and MELP are culturally and legally awkward.

Zeitleiste

  • 2009-08-21: David Rowe publicly announces the open-source low-rate speech codec project.
  • 2012: FreeDV 1600 mode uses Codec 2 1300 according to the FreeDV mode table.
  • 2016: FreeDV 2400A and 2400B VHF modes use Codec 2 1300.
  • 2017: FreeDV 700C and 800XA modes use Codec 2 700C.
  • 2018: FreeDV 700D uses Codec 2 700C.
  • 2020: FreeDV 700E appears in the official FreeDV mode table.
  • 2023-07: Current README says the repo was refactored and older code moved to codec2-dev.
  • 2023-07-24: Codec2 1.2.0 release published in the current GitHub repository.

Related projects

  • FreeDV is the most closely related project and is described by the README and Rowetel page as an open-source digital voice protocol integrating Codec 2, modems, and FEC. The repository also references `codec2-dev` for older code, `drowe67/LPCNet` for FreeDV 2020 support, the SM1000 FreeDV adaptor, and modem components such as OFDM, FDMDV, COHPSK, FSK, and LDPC utilities.

Sicherheitslage

Risikostufe: grün

narrow executable package without higher-risk signals.

Risikoklassifikator

grün Risiko · niedrig Konfidenz · appliance

Warum

  • narrow executable package without higher-risk signals

Signale

  • metadata:no-higher-risk-signals

Installationsverhalten

  • In den Formelmetadaten ist kein Homebrew-Post-install-Hook erfasst.
  • Homebrew-Bottle-Metadaten sind für 12 Plattformziele verfügbar.
  • Build-Metadaten listen 1 Build-Abhängigkeiten.

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Executables

Installierte Executables

BefehlArtSichtbarkeitHinweis
c2deccliglobales Executable
c2democliglobales Executable
c2enccliglobales Executable
c2simcliglobales Executable

Aktualität

Version und Aktualität

Diese Signale trennen das Alter der Seitengenerierung, Aktivität des Paketmanagers und Upstream-Release-Vergleich. Versionsrückstand wird nur gemeldet, wenn eine Evidenz-URL und vergleichbare Versionen vorhanden sind.

Seite generiert2026-07-25
Manager-Version1.2.0
Manager aktualisiert
lokale DatenOK
Upstreamaktuell
neueste erkannte Version1.2.0

https://github.com/drowe67/codec2

  • InfoNo package-manager update timestamp was available.niedrig Konfidenz

Installationsmetadaten

Paketmetadaten

Paketschlüsselbrew:codec2
Version1.2.0
PaketmanagerHomebrew
Paketmanager-Seitehttps://formulae.brew.sh/formula/codec2
Homepagehttps://www.rowetel.com/?page_id=452
Repositoryhttps://github.com/drowe67/codec2
Upstream-Dokumentationhttps://github.com/drowe67/codec2#readme
LizenzLGPL-2.1-only
Quellarchivhttps://github.com/drowe67/codec2/archive/refs/tags/1.2.0.tar.gz
Build-Abhängigkeitencmake
Bottleverfügbar (auf arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, monterey, sonoma, ventura, x86_64_linux)
Homebrew post-installnicht definiert
Dienstkeiner deklariert

Registry-Fakten

Details aus der Quelldatenbank

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Namecodec2
Version Scheme0
Revision0
Bottle Stable Root URLhttps://ghcr.io/v2/homebrew/core
Deprecatedno
Disabledno
Keg Onlyno
URL Keys
  • stable

Source-Datenbank-Treffer

Andere Paketmanager-Einträge

Treffer stammen aus externen Paketmanager-Indizes und bleiben von lokalen Automic-Vault-Paketlinks getrennt.

Debian apt95%

codec2 1.2.0-3

command line tools for handling Codec2 data

http://rowetel.com/codec2.html

sudo apt install codec2
  • Section: sound
  • Architecture: amd64
  • 2 Abhängigkeiten
  • normalized package name match
  • Abgeglichen nach: Codec2
Debian stable package indexes · deb.debian.org · Debian stable package indexes: codec2 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libcodec2-1.2 1.2.0-3

Codec2 runtime library

http://rowetel.com/codec2.html

sudo apt install libcodec2-1.2
  • Section: libs
  • Architecture: amd64
  • Source Package: codec2
  • 1 Abhängigkeiten
  • normalized package name match
  • Abgeglichen nach: Codec2
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libcodec2-1.2 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libcodec2-dev 1.2.0-3

Codec2 library development files

http://rowetel.com/codec2.html

sudo apt install libcodec2-dev
  • Section: libdevel
  • Architecture: amd64
  • Source Package: codec2
  • 1 Abhängigkeiten
  • 1 optionale Abhängigkeiten
  • normalized package name match
  • Abgeglichen nach: Codec2
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libcodec2-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Nix95%

codec2

nix profile install nixpkgs#codec2
  • normalized package name match
  • Abgeglichen nach: Codec2
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/co/codec2/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
Ubuntu apt95%

codec2 1.2.0-2build1

command line tools for handling Codec2 data

http://rowetel.com/codec2.html

sudo apt install codec2
  • Section: universe/sound
  • Architecture: amd64
  • 2 Abhängigkeiten
  • normalized package name match
  • Abgeglichen nach: Codec2
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: codec2 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libcodec2-1.2 1.2.0-2build1

Codec2 runtime library

http://rowetel.com/codec2.html

sudo apt install libcodec2-1.2
  • Section: universe/libs
  • Architecture: amd64
  • Source Package: codec2
  • 1 Abhängigkeiten
  • normalized package name match
  • Abgeglichen nach: Codec2
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libcodec2-1.2 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libcodec2-dev 1.2.0-2build1

Codec2 library development files

http://rowetel.com/codec2.html

sudo apt install libcodec2-dev
  • Section: universe/libdevel
  • Architecture: amd64
  • Source Package: codec2
  • 1 Abhängigkeiten
  • 1 optionale Abhängigkeiten
  • normalized package name match
  • Abgeglichen nach: Codec2
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libcodec2-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
apk95%

codec2 1.2.0-r1

Open source speech codec designed for communications quality speech between 700 and 3200 bps

https://github.com/drowe67/codec2

sudo apk add codec2
  • License: LGPL-2.1-or-later
  • Architecture: x86_64
  • Source Package: codec2
  • 1 Abhängigkeiten
  • 1 stellt bereit
  • normalized package name match
  • Abgeglichen nach: Codec2
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: codec2 from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz
apk95%

codec2-dev 1.2.0-r1

Open source speech codec designed for communications quality speech between 700 and 3200 bps (development files)

https://github.com/drowe67/codec2

sudo apk add codec2-dev
  • License: LGPL-2.1-or-later
  • Architecture: x86_64
  • Source Package: codec2
  • 1 Abhängigkeiten
  • 1 stellt bereit
  • normalized package name match
  • Abgeglichen nach: Codec2
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: codec2-dev from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz
dnf95%

codec2 1.2.0-9.fc44

Next-Generation Digital Voice for Two-Way Radio

http://rowetel.com/codec2.html

sudo dnf install codec2
  • License: LGPL-2.1-only
  • Category: Unspecified
  • Architecture: i686
  • Source Package: codec2
  • 5 Abhängigkeiten
  • 2 stellt bereit
  • normalized package name match
  • Abgeglichen nach: Codec2
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: codec2 from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst
dnf95%

codec2-devel 1.2.0-9.fc44

Development files for Codec 2

http://rowetel.com/codec2.html

sudo dnf install codec2-devel
  • License: LGPL-2.1-only
  • Category: Unspecified
  • Architecture: i686
  • Source Package: codec2
  • 4 Abhängigkeiten
  • 3 stellt bereit
  • normalized package name match
  • Abgeglichen nach: Codec2
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: codec2-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst
pacman95%

codec2 1:1.2.0-2

Open source speech codec designed for communications quality speech between 450 and 3200 bit/s

https://github.com/drowe67/codec2

sudo pacman -S codec2
  • License: LGPL2.1
  • Architecture: x86_64
  • 1 Abhängigkeiten
  • 1 stellt bereit
  • normalized package name match
  • Abgeglichen nach: Codec2
Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: codec2 from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz
zypper95%

codec2 1.2.0-2.5

Low bit rate speech codec

https://rowetel.com/codec2.html

sudo zypper install codec2
  • License: LGPL-2.1-only
  • Category: Unspecified
  • Architecture: x86_64
  • Source Package: codec2
  • 3 Abhängigkeiten
  • 1 stellt bereit
  • normalized package name match
  • Abgeglichen nach: Codec2
openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: codec2 from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst
zypper95%

codec2-devel 1.2.0-2.5

Development library for codec2

https://rowetel.com/codec2.html

sudo zypper install codec2-devel
  • License: LGPL-2.1-only
  • Category: Unspecified
  • Architecture: x86_64
  • Source Package: codec2
  • 2 Abhängigkeiten
  • 3 stellt bereit
  • normalized package name match
  • Abgeglichen nach: Codec2
openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: codec2-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst
zypper95%

codec2-examples 1.2.0-2.5

Example code for Codec 2

https://rowetel.com/codec2.html

sudo zypper install codec2-examples
  • License: LGPL-2.1-only
  • Category: Productivity/Hamradio/Other
  • Architecture: noarch
  • Source Package: codec2
  • 1 stellt bereit
  • normalized package name match
  • Abgeglichen nach: Codec2
openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: codec2-examples from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst
zypper95%

libcodec2-1_2 1.2.0-2.5

Low bit rate speech codec

https://rowetel.com/codec2.html

sudo zypper install libcodec2-1_2
  • License: LGPL-2.1-only
  • Category: Unspecified
  • Architecture: x86_64
  • Source Package: codec2
  • 3 Abhängigkeiten
  • 2 stellt bereit
  • normalized package name match
  • Abgeglichen nach: Codec2
openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: libcodec2-1_2 from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst

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Gleicher Workflow

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  • alsa-libShares av.db curated category or tags: audio, c, cli, media.
  • flakeShares av.db curated category or tags: audio-codec, cli, media.
  • freealutShares av.db curated category or tags: audio, c, cli, media.
  • id3libShares av.db curated category or tags: audio, c, cli, media.
  • libgsmShares av.db curated category or tags: audio-codec, cli, media.

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