macOS
Homebrewverified · 100%
brew install speech-toolslocal Homebrew formula metadata
brew / rank 8707
Install speech-tools with Homebrew, apt, dnf, Nix
C++ speech software library from the University of Edinburgh. Version 2.5.0 via Homebrew; verified 2026-07-13. Also installable with debian: sudo apt install libestools-dev.
install
Additional install commands
Linux
Debian aptverified · 92%
sudo apt install speech-toolsDebian stable package indexes · speech-tools · source: deb.debian.org
Fedora dnfverified · 92%
sudo dnf install speech-toolsFedora Rawhide package metadata · speech-tools · source: dl.fedoraproject.org
Nixverified · 92%
nix profile install nixpkgs#speech-toolsnixpkgs package indexes · pkgs/by-name/sp/speech-tools/package.nix · source: api.github.com
overview
Package summary
C++ speech software library from the University of Edinburgh
Project links
Commands and aliases
- align
- bcat
- ch_lab
- ch_track
- ch_utt
- ch_wave
- design_filter
- dp
- na_play
- na_record
- ngram_build
- ngram_test
- ols_test
- pda
- pitchmark
- scfg_make
- scfg_parse
- scfg_test
- scfg_train
- sig2fv
- sigfilter
- siod
- spectgen
- tilt_analysis
- tilt_synthesis
- viterbi
- wagon
- wagon_test
- wfst_build
- wfst_run
- wfst_train
- xml_parser
history
Project history and usage
Edinburgh Speech Tools is a long-running C++ speech-processing library and command collection from the University of Edinburgh Centre for Speech Technology Research. In package-manager culture it matters less as an end-user app than as the Unix-style substrate behind Festival-era speech synthesis packages and a grab bag of speech utilities such as waveform, label, n-gram, CART, and signal-processing tools.
Project history
The official CSTR page describes the library as C++ classes, functions, and programs for manipulating speech-processing objects, including waveforms, parameter files, labels, n-grams, intonation tools, CART training with wagon, and early recognition-oriented classes. The upstream README identifies version 2.5.1 as a July 2020 stable release, credits the University of Edinburgh and principal authors including Alan W Black, Paul Taylor, Richard Caley, Simon King, Rob Clark, and Korin Richmond, and carries copyright dates beginning in 1994.
Adoption history
The project was designed to support other speech systems rather than stand alone. Festival's own manual says Edinburgh Speech Tools lies at the core of Festival, while the CSTR project page says the tools provide underlying classes for the Festival Speech Synthesis System. That connection explains why Unix package sets tend to carry it as both a library and a cluster of small command-line programs.
How it is used
Packagers and CLI users encounter Edinburgh Speech Tools through commands such as ch_wave, ch_lab, ch_track, wagon, ngram_build, and sig2fv, or through development packages used to build Festival and related speech software. Its packaging appeal is that it exposes old-school, scriptable speech primitives as normal Unix executables and a linkable static library.
Why package nerds care
For package nerds, speech-tools is a classic dependency-history package: old academic C++, many installed binaries, a custom permissive license, and practical importance because higher-level TTS software depends on it. It is the kind of formula that keeps historical speech stacks buildable long after the surrounding research ecosystem has moved on.
Timeline
- 1994: Copyright period for Edinburgh Speech Tools begins, according to the upstream README.
- 2000s: CSTR documents the library as the underlying class and utility layer for Festival.
- 2020: Upstream README identifies Edinburgh Speech Tools 2.5.1 as a July 2020 stable release.
Related projects
- Festival Speech Synthesis System uses Edinburgh Speech Tools as a core library.
- Festvox hosts current generated documentation for newer speech_tools releases.
Sources
security posture
Risk level: blue
broad file, network, media, or database tool signal.
Risk classifier
blue risk · medium confidence · tool
Why
- broad file, network, media, or database tool signal
Signals
- text:record
Install behavior
- No Homebrew bottle metadata was recorded.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
align | executable | indexed executable | Discovered from the local executable index. |
bcat | executable | indexed executable | Discovered from the local executable index. |
ch_lab | executable | indexed executable | Discovered from the local executable index. |
ch_track | executable | indexed executable | Discovered from the local executable index. |
ch_utt | executable | indexed executable | Discovered from the local executable index. |
ch_wave | executable | indexed executable | Discovered from the local executable index. |
design_filter | executable | indexed executable | Discovered from the local executable index. |
dp | executable | indexed executable | Discovered from the local executable index. |
na_play | executable | indexed executable | Discovered from the local executable index. |
na_record | executable | indexed executable | Discovered from the local executable index. |
ngram_build | executable | indexed executable | Discovered from the local executable index. |
ngram_test | executable | indexed executable | Discovered from the local executable index. |
ols_test | executable | indexed executable | Discovered from the local executable index. |
pda | executable | indexed executable | Discovered from the local executable index. |
pitchmark | executable | indexed executable | Discovered from the local executable index. |
scfg_make | executable | indexed executable | Discovered from the local executable index. |
scfg_parse | executable | indexed executable | Discovered from the local executable index. |
scfg_test | executable | indexed executable | Discovered from the local executable index. |
scfg_train | executable | indexed executable | Discovered from the local executable index. |
sig2fv | executable | indexed executable | Discovered from the local executable index. |
sigfilter | executable | indexed executable | Discovered from the local executable index. |
siod | executable | indexed executable | Discovered from the local executable index. |
spectgen | executable | indexed executable | Discovered from the local executable index. |
tilt_analysis | executable | indexed executable | Discovered from the local executable index. |
tilt_synthesis | executable | indexed executable | Discovered from the local executable index. |
viterbi | executable | indexed executable | Discovered from the local executable index. |
wagon | executable | indexed executable | Discovered from the local executable index. |
wagon_test | executable | indexed executable | Discovered from the local executable index. |
wfst_build | executable | indexed executable | Discovered from the local executable index. |
wfst_run | executable | indexed executable | Discovered from the local executable index. |
wfst_train | executable | indexed executable | Discovered from the local executable index. |
xml_parser | executable | indexed executable | Discovered from the local executable index. |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-08-03
manager version2.5.0
manager updated2026-07-13
local dataunknown
upstreamnot available
latest detectednot detected
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:speech-tools |
|---|---|
| Version | 2.5.0 |
| Package manager | Homebrew |
| Homepage | http://festvox.org/docs/speech_tools-2.4.0/ |
| Repository | https://github.com/festvox/speech_tools |
| Last updated | 2026-07-13T17:31:47+09:00 |
| Pulse | updated |
| Bottle | not recorded |
| Service | none declared |
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Debian apt95%
libestools-dev 1:2.5.0-13+b4
Edinburgh Speech Tools Library - developer's libraries
http://festvox.org/packed/festival/
sudo apt install libestools-dev- Section: libdevel
- Architecture: amd64
- Source Package: speech-tools
- 4 dependencies
- 1 provides
- 1 optional deps
- normalized package name match
- Matched by: Speech Tools
Debian apt95%
libestools2.5 1:2.5.0-13+b4
Edinburgh Speech Tools Library
http://festvox.org/packed/festival/
sudo apt install libestools2.5- Section: libs
- Architecture: amd64
- Source Package: speech-tools
- 7 dependencies
- normalized package name match
- Matched by: Speech Tools
Debian apt95%
speech-tools 1:2.5.0-13+b4
Edinburgh Speech Tools - user binaries
http://festvox.org/packed/festival/
sudo apt install speech-tools- Section: sound
- Architecture: amd64
- Source Package: speech-tools
- 6 dependencies
- 1 optional deps
- normalized package name match
- Matched by: Speech Tools
Debian apt95%
speech-tools-doc 1:2.5.0-13
Documentation for the Edinburgh Speech Tools
http://festvox.org/packed/festival/
sudo apt install speech-tools-doc- Section: doc
- Architecture: all
- Source Package: speech-tools
- 1 dependencies
- normalized package name match
- Matched by: Speech Tools
Nix95%
speech-tools
nix profile install nixpkgs#speech-tools- normalized package name match
- Matched by: Speech Tools
Ubuntu apt95%
libestools-dev 1:2.5.0-13build2
Edinburgh Speech Tools Library - developer's libraries
http://festvox.org/packed/festival/
sudo apt install libestools-dev- Section: universe/libdevel
- Architecture: amd64
- Source Package: speech-tools
- 4 dependencies
- 1 provides
- 1 optional deps
- normalized package name match
- Matched by: Speech Tools
Ubuntu apt95%
libestools2.5 1:2.5.0-13build2
Edinburgh Speech Tools Library
http://festvox.org/packed/festival/
sudo apt install libestools2.5- Section: universe/libs
- Architecture: amd64
- Source Package: speech-tools
- 7 dependencies
- normalized package name match
- Matched by: Speech Tools
Ubuntu apt95%
speech-tools 1:2.5.0-13build2
Edinburgh Speech Tools - user binaries
http://festvox.org/packed/festival/
sudo apt install speech-tools- Section: universe/sound
- Architecture: amd64
- 6 dependencies
- 1 optional deps
- normalized package name match
- Matched by: Speech Tools
Ubuntu apt95%
speech-tools-doc 1:2.5.0-13build2
Documentation for the Edinburgh Speech Tools
http://festvox.org/packed/festival/
sudo apt install speech-tools-doc- Section: universe/doc
- Architecture: all
- Source Package: speech-tools
- 1 dependencies
- normalized package name match
- Matched by: Speech Tools
dnf95%
speech-tools 2.5-29.fc45
Edinburgh speech tools library
sudo dnf install speech-tools- License: MIT-Festival
- Category: Unspecified
- Architecture: x86_64
- Source Package: speech-tools
- 12 dependencies
- 1 provides
- normalized package name match
- Matched by: Speech Tools
dnf95%
speech-tools-libs 2.5-29.fc45
Edinburgh speech tools libraries
sudo dnf install speech-tools-libs- License: MIT-Festival
- Category: Unspecified
- Architecture: i686
- Source Package: speech-tools
- 3 dependencies
- 7 provides
- normalized package name match
- Matched by: Speech Tools
dnf95%
speech-tools-libs-devel 2.5-29.fc45
Development files for the speech-tools libraries
sudo dnf install speech-tools-libs-devel- License: MIT-Festival
- Category: Unspecified
- Architecture: i686
- Source Package: speech-tools
- 5 dependencies
- 4 provides
- normalized package name match
- Matched by: Speech Tools
dnf95%
speech-tools-libs-static 2.5-29.fc45
Static libraries of speech-tools, so far needed by at least festival
sudo dnf install speech-tools-libs-static- License: MIT-Festival
- Category: Unspecified
- Architecture: i686
- Source Package: speech-tools
- 1 dependencies
- 1 provides
- normalized package name match
- Matched by: Speech Tools
Nix92%
align
nix profile install nixpkgs#align- installed executable or alias match
- Matched by: Align
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- pkg.so package database
- pkgdb category and tag curation