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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:Windows
Version:0.2
Released:Sep 19,2018
File size:1.0MB
9.5/10
1 vote

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Screenshots

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Latest version

0.2 (September 19, 2018)




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Download OpusTools 0.2  [1.0MB]  [Win]  [Portable]

Download OpusTools 0.2 64-bit  [1.4MB]  [Win64]  [Portable]




Download old versions


Download OpusTools old versions




Supported operating systems

WinWindows




License

Free software




Version history / Release notes / Changelog


opus-tools 0.2
Sep 18, 2018
In this release the Opus decoder opusdec has been converted to use the opusfile library, and the Opus encoder opusenc has been converted to use the libopusenc library. These libraries make it easy to robustly read and write Ogg Opus audio files, and enable some new features. Both libraries are available on the Downloads page.

opusdec enhancements include:

Read directly from http or https sources
New option --force-stereo will force stereo output
Improved support for chained input files with differing sample rate or channel count
A summary is displayed for METADATA_BLOCK_PICTURE tags rather than displaying the base64-encoded data
opusenc enhancements include:

Delayed decision support allows the encoder to look ahead up to two seconds in order to improve encoding decisions
The options --music and --speech can be used to tune low bitrate audio for music or speech, overriding automatic detection
The option --no-phase-inv disables the use of phase inversion for intensity stereo, which can be useful for streams that are likely to be downmixed to mono after decoding
New --tracknumber shortcut for setting tracknumber metadata
Additionally:

The opusinfo utility can display the demixing matrix from Ogg Opus files using ambisonics channel mapping family 3
The experimental opusrtp tool supports new options to specify RTP payload type, Ogg Opus output file, original sample rate, and number of channels, and supports improved transmit timing, arbitrary network devices, and IPv6
The Visual Studio 2015 project builds opusenc support for FLAC input
The old Visual Studio 2010 project has been removed
Numerous bug fixes are also included

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



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1 reviews, Showing 1 to 1 reviews

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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


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