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technology/files/media/audio/Opus.md
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@ -2,6 +2,7 @@
website: https://opus-codec.org/
obj: codec
---
# Opus
Opus is a lossy audio coding format developed by the Xiph.Org Foundation and standardized by the Internet Engineering Task Force, designed to efficiently code speech and general audio in a single format, while remaining low-latency enough for real-time interactive communication and low-complexity enough for low-end embedded processors. Opus replaces both Vorbis and Speex for new applications, and several blind listening tests have ranked it higher-quality than any other standard audio format at any given bitrate until transparency is reached, including MP3, AAC, and HE-AAC.
@ -9,9 +10,9 @@ Opus combines the speech-oriented LPC-based SILK algorithm and the lower-latency
As an open format standardized through RFC 6716, a reference implementation called libopus is available under the New BSD License. The reference has both fixed-point and floating-point optimizations for low- and high-end devices, with SIMD optimizations on platforms that support them. All known software patents that cover Opus are licensed under royalty-free terms. Opus is widely used as the voice-over-IP (VoIP) codec in applications such as Discord, WhatsApp, and the PlayStation 4.
| Name | Value |
| --------- | ----------------------- |
| Extension | .opus |
| [MIME](../../MIME.md) | audio/ogg<br>audio/opus |
| Website | https://opus-codec.org/ |
| Name | Value |
| --------------------- | ----------------------- |
| Extension | .opus |
| [MIME](../../MIME.md) | audio/ogg<br>audio/opus |
| Website | https://opus-codec.org/ |