speex ☆

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Description:
Audio codec designed for speech

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Multimedia

Tags: audio codec speech compression voip multimedia

Install: brew install speex

About:
Speex is a patent-free, open-source audio codec optimized for speech compression. It provides high compression ratios while maintaining intelligibility, making it ideal for voice over IP applications and internet telephony. The codec supports variable bit rates and multiple quality modes to balance bandwidth usage against audio fidelity.

Key Features:

Patent-free and open-source
Variable bit rate (VBR) support
Optimized for voice frequencies (8-32 kHz)
Low latency for real-time communication
Wide platform compatibility

Use Cases:

Voice over IP (VoIP) applications
Internet telephony and conferencing
Voice streaming services
Embedded voice recording systems

Alternatives:

Opus – Opus is more modern, supports both speech and music, and generally offers better quality
G.711 – G.711 is simpler but uses much more bandwidth with lower compression
AMR – AMR is patented and primarily used in mobile networks

Version History

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