macOS
brew install libgsmlocal Homebrew formula metadata
sudo port install libgsmMacPorts ports tree · audio/libgsm/Portfile · ソース: api.github.com
brew
libgsm のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。
インストール
brew install libgsmlocal Homebrew formula metadata
sudo port install libgsmMacPorts ports tree · audio/libgsm/Portfile · ソース: api.github.com
sudo apt install libgsm-toolsDebian stable package indexes · libgsm-tools · ソース: deb.debian.org
sudo zypper install libgsm-developenSUSE Tumbleweed package metadata · libgsm-devel · ソース: download.opensuse.org
nix profile install nixpkgs#tcatnixpkgs package indexes · pkgs/by-name/tc/tcat/package.nix · ソース: api.github.com
概要
Lossy speech compression library
履歴
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.
セキュリティ状態
library-like package without higher-risk signals.
リスク グリーン · 信頼度 低 · appliance
エージェントに無人実行させる前に、このツールが平文の認証情報を読むか、リモート状態を書き込むか、成果物を公開するか、プラグインを起動するかを確認してください。
実行可能ファイル
| コマンド | 種類 | 公開範囲 | メモ |
|---|---|---|---|
tcat | cli | グローバル実行可能ファイル | |
toast | cli | グローバル実行可能ファイル | |
untoast | cli | グローバル実行可能ファイル |
鮮度
これらの信号は、ページ生成時期、パッケージマネージャの活動、上流リリース比較を分けて示します。バージョン遅れは、証拠 URL と比較可能なバージョンがある場合だけ警告されます。
インストールメタデータ
| パッケージキー | brew:libgsm |
|---|---|
| バージョン | 1.0.24 |
| パッケージマネージャ | Homebrew |
| パッケージマネージャページ | https://formulae.brew.sh/formula/libgsm |
| ホームページ | https://www.quut.com/gsm/ |
| 上流ドキュメント | https://www.quut.com/gsm |
| ライセンス | TU-Berlin-2.0 |
| ソースアーカイブ | https://www.quut.com/gsm/gsm-1.0.24.tar.gz |
| Bottle | 利用可能 (対象 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | 未定義 |
| サービス | 宣言なし |
レジストリ情報
| 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 |
|
ソースデータベース一致
一致は外部パッケージマネージャインデックスから取得され、ローカルの Automic Vault パッケージリンクとは分けて表示されます。
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#toastソース経路
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View the package source record on GitHub.