macOS
brew install libgsmlocal Homebrew formula metadata
sudo port install libgsmMacPorts ports tree · audio/libgsm/Portfile · Quelle: api.github.com
brew
Prüfe Installationswege, Executables, Metadaten und Sicherheitshinweise für libgsm in AI-Agent-Workflows.
Installation
brew install libgsmlocal Homebrew formula metadata
sudo port install libgsmMacPorts ports tree · audio/libgsm/Portfile · Quelle: api.github.com
sudo apt install libgsm-toolsDebian stable package indexes · libgsm-tools · Quelle: deb.debian.org
sudo zypper install libgsm-developenSUSE Tumbleweed package metadata · libgsm-devel · Quelle: download.opensuse.org
nix profile install nixpkgs#tcatnixpkgs package indexes · pkgs/by-name/tc/tcat/package.nix · Quelle: api.github.com
Überblick
Lossy speech compression library
Verlauf
libgsm is Jutta Degener and Carsten Bormann's C implementation of the GSM 06.10 RPE-LTP speech codec, distributed with a small Unix-style toolset headed by toast, untoast, and tcat. It matters in package collections because it is a compact, long-lived reference implementation of a telephony-era codec that still appears wherever old audio formats, speech samples, or GSM-framed test data need to be handled.
The project began in 1992 at the Technical University of Berlin, where Degener's research group needed a speech-compression algorithm for multimedia conferencing experiments and selected the ETSI GSM 06.10 speech codec. Degener and Bormann implemented the GSM 06.10 RPE-LTP coder and decoder in C, exposing both a library API and standalone tools for encoding and decoding speech data.
The implementation reflects early-1990s Unix multimedia culture: the toast command was modeled after Unix compress, but it produces lossy .gsm speech data rather than reversible compressed files. The upstream page documents details such as 160-sample PCM frames encoded into 264-bit GSM frames, optional frame inspection, and portability notes for Unix-like systems, VMS, MS-DOS, and 64-bit DEC Alpha systems.
libgsm spread through operating-system package collections because it solved a narrow problem with few dependencies. Build a GSM 06.10 codec and get small command-line tools for batch conversion. The batch input lists packages for Homebrew, Debian, Ubuntu, MacPorts, Nix, and openSUSE, showing the usual path for old C libraries that remain useful as compatibility glue.
Users normally encounter libgsm either as a dependency of audio or telephony software, or through the toast, untoast, and tcat commands for converting raw speech samples to and from GSM 06.10 data. Developers use the library when they need a small C codec implementation rather than a full multimedia framework.
libgsm is the kind of package that makes old media stacks work quietly: tiny, ancient, standards-adjacent, and still carried because removing it breaks obscure but real audio workflows. Its licensing and provenance are also notable because Homebrew records the TU-Berlin-2.0 license while the upstream page preserves the original research-code distribution context.
Sicherheitslage
library-like package without higher-risk signals.
grün Risiko · niedrig Konfidenz · appliance
Prüfe vor unbeaufsichtigter Agent-Nutzung, ob das Tool Klartext-Credentials liest, Remote-Zustand schreibt, Artefakte veröffentlicht oder Plugins ausführt.
Executables
| Befehl | Art | Sichtbarkeit | Hinweis |
|---|---|---|---|
tcat | cli | globales Executable | |
toast | cli | globales Executable | |
untoast | cli | globales Executable |
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.
Installationsmetadaten
| Paketschlüssel | brew:libgsm |
|---|---|
| Version | 1.0.24 |
| Paketmanager | Homebrew |
| Paketmanager-Seite | https://formulae.brew.sh/formula/libgsm |
| Homepage | https://www.quut.com/gsm/ |
| Upstream-Dokumentation | https://www.quut.com/gsm |
| Lizenz | TU-Berlin-2.0 |
| Quellarchiv | https://www.quut.com/gsm/gsm-1.0.24.tar.gz |
| Bottle | verfügbar (auf arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | nicht definiert |
| Dienst | keiner deklariert |
Registry-Fakten
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | libgsm |
| Version Scheme | 0 |
| Revision | 0 |
| Conflicts With |
|
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
Source-Datenbank-Treffer
Treffer stammen aus externen Paketmanager-Indizes und bleiben von lokalen Automic-Vault-Paketlinks getrennt.
libgsm-tools 1.0.22-1+b2
User binaries for a GSM speech compressor
sudo apt install libgsm-toolslibgsm1 1.0.22-1+b2
Shared libraries for GSM speech compressor
sudo apt install libgsm1libgsm1-dev 1.0.22-1+b2
Development libraries for a GSM speech compressor
sudo apt install libgsm1-devlibgsm-tools 1.0.22-1build1
User binaries for a GSM speech compressor
sudo apt install libgsm-toolslibgsm1 1.0.22-1build1
Shared libraries for GSM speech compressor
sudo apt install libgsm1libgsm1-dev 1.0.22-1build1
Development libraries for a GSM speech compressor
sudo apt install libgsm1-devlibgsm-devel 1.0.24-1.2
GSM 06.10 Lossy Speech Compressor Library and Utilities
sudo zypper install libgsm-devellibgsm-devel-32bit 1.0.24-1.2
GSM 06.10 Lossy Speech Compressor Library and Utilities
sudo zypper install libgsm-devel-32bitlibgsm-utils 1.0.24-1.2
GSM 06.10 Lossy Speech Compressor Library and Utilities
sudo zypper install libgsm-utilslibgsm1 1.0.24-1.2
GSM 06.10 Lossy Speech Compressor Library and Utilities
sudo zypper install libgsm1libgsm1-32bit 1.0.24-1.2
GSM 06.10 Lossy Speech Compressor Library and Utilities
sudo zypper install libgsm1-32bitlibgsm
sudo port install libgsmtcat
sudo port install tcattoast
sudo port install toasttcat
nix profile install nixpkgs#tcattoast
nix profile install nixpkgs#toastQuellspur
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View the package source record on GitHub.