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Description

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OpusTools is a set of tools to encode, inspect, and decode audio in the Opus audio codec format. Command line tools. Opus is a totally open, royalty-free, highly versatile audio codec. Opus is unmatched for interactive speech and music transmission over the Internet, but is also intended for storage and streaming applications.

Free software
OS: Win
File size: 5MB
Portable version
Old versions
Version history
8.8/10
3 votes
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Screenshots

OpusTools screenshot
Latest version

0.2+34 libopus 1.4+9 (December 11, 2023)



Download


Visit developer's site

Download OpusTools 0.2+34 libopus 1.4+9  5MB  Win  Portable




Download old versions


Download OpusTools old versions



Software License

Free software / FOSS (Free download and also Free and Open Source Software)



Supported operating systems

WinWindows




Version history / Release notes / Changelog / What's New


Mar 4, 2024

Opus 1.5 is the first release to make extended use of ML in the encoder and decoder. You can read all the details in this release demo page. In summary, major changes since 1.4 include:

Significant improvement to packet loss robustness using Deep Redundancy (DRED)
Improved packet loss concealment through Deep PLC
Low-bitrate speech quality enhancement down to 6 kb/s wideband
Improved x86 (AVX2) and Arm (Neon) optimizations
Support for 4th and 5th order ambisonics
In addition to the improvements above, this release includes many minor bug fixes. Opus 1.5.1 fixes the meson build that was broken in 1.5.

View full changelog




All features


Opus can handle a wide range of audio applications, including Voice over IP, videoconferencing, in-game chat, and even remote live music performances. It can scale from low bitrate narrowband speech to very high quality stereo music. Supported features are:

Bitrates from 6 kb/s to 510 kb/s
Sampling rates from 8 kHz (narrowband) to 48 kHz (fullband)
Frame sizes from 2.5 ms to 60 ms
Support for both constant bitrate (CBR) and variable bitrate (VBR)
Audio bandwidth from narrowband to fullband
Support for speech and music
Support for mono and stereo
Support for up to 255 channels (multistream frames)
Dynamically adjustable bitrate, audio bandwidth, and frame size
Good loss robustness and packet loss concealment (PLC)
Floating point and fixed-point implementation




Sections/Browse similar tools






Guides and How to's




Acronyms / Also Known As

Opus-Tools, OpusTools, Opus Tools, opusenc, opusdec,opusinfo, opusrtp, Opus Encoder, Opus Decoder



Download OpusTools Portable download from the Download links under Download and Download other versions!



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3 reviews, Showing 1 to 3 reviews


Honestly, I've tested dozens of encoders and Opus is the best one, no doubt. I don't agree that it's "too complicated", the commands can easily be found and they are much more simples than other encoders, not only that, there are a few frontend GUI if you don't want the trouble to type commands... The only thing I'll say, though, is that for an "open source" software, it doesn't have much updates. It's been "forgotten" for years.

Review by Raphael on Feb 5, 2024 Version: OpusTools 0.2 OS: Windows 11 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10




Great at what it does, but too complicated to use for most users. I much prefer he-aacV1 48kbps as the sweet spot. Any lower e.g using V2 makes the sound very tinny. Any higher is better sounding e.g 64kbps but recreates higher frequencies which most cannot hear anyways. Opus is better at these low bitrates, but why damage audio to even tinirr bitrates when lots of radio stations are using aacPlus these days to better use?

Review by John on Jan 7, 2021 Version: 0.2.1 OS: Windows 8 64-bit Ease of use: 1/10 Functionality: 9/10 Value for money: 10/10 Overall: 8/10




Rating by fluidinmo on May 30, 2017 Version: 1.2 beta OS: Windows 10 64-bit Ease of use: 8/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10


3 reviews, Showing 1 to 3 reviews

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Our hosted software are virus and malware scanned with several antivirus programs using www.virustotal.com. (NOTE! Just one virustotal warning is 99.9% a false positive. And some software might receive 2-6 warnings but it's if they are not all same virus/trojan then it's 99% false positives.)


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