HALAC focuses on a reasonable compression ratio and high processing speed. The compression rate for audio data is usually limited. So I wanted a solution that can work faster with a few percent concessions.
github.com/Hakan-Abbas/HALAC-High-Availability-Lossless-Audio-Compression
github.com/Hakan-Abbas/HALAC-Audio-Player
hydrogenaudio.org/index.php/topic,125248.0
Sac is a state-of-the-art lossless audio compression model.
Lossless audio compression is a complex problem, because PCM data is highly non-stationary and uses high sample resolution (typically >=16bit). That’s why classic context modelling suffers from context dilution problems. Sac employs a simple OLS-NLMS predictor per frame including bias correction. Prediction residuals are encoded using a sophisticated bitplane coder including SSE and various forms of probability estimations. Meta-parameters of the predictor are optimized with DDS on by-frame basis. This results in a highly asymmetric codec design.
Technical features:
TDR Kotelnikov is a wideband dynamics processor combining high fidelity dynamic range control with deep musical flexibility. As a descendant of the venerable TDR Feedback Compressor product family, Kotelnikov has directly inherited several unique features such as a proven control scheme, individual release control for peak and RMS content, an intuitive user interface, and powerful, state of the art, high-precision algorithms.
With a sonic signature best described as “stealthy”, Kotelnikov has the ability to manipulate the dynamic range by dramatic amounts, while carefully preserving the original tone, timbre and punch of a musical signal. As such, it is perfectly suited to stereo bus compression as well as other critical applications.
The concept is “proudly digital” in the sense that it doesn’t try to emulate any previously existing device. This is the original!
www.tokyodawn.net/tdr-kotelnikov
EdgeSounds’ RatHole (former GenieSys RatHole) is a free unique nondestructive universal compression utility. Its function is based on a principle of self-training neural networks. EdgeSounds RatHole was especially designed for nondestructive compression of any files containing audio data in PCM 8/16/24 bit or IEEE_FLOAT 32 bit format.
A new EdgeSounds compression algorithm makes it possible to efficiently reduce the size of packed audio data and later unpack exactly same bits, with no difference to the original data. The compression algorithm compresses audio data, considering the bit depth of the digital data contained in the audio file (8/16/24/32 bit). The algorithm is proven to be equally effective on compressing the following file types:
The compression ratio of the algorithm depends on the size of audio data, the balance between the tone and noise component, bit depth and other factors, and usually varies from 36% to 78% or even more, with an average of 48-56%. The higher is the bit depth and the fidelity of audio data, the better is the compression ratio.
The RatHole can be successfully used as a common archiving utility for any other file types as well.
www.edgesounds.com/Products/Software/RatHole
www.rarewares.org/others.php#edgesounds-rathole
AudioMass lets you record, or use your existing audio tracks, and modify them by trimming, cutting, pasting or applying a plethora of effects, from compression and paragraphic equalizers to reverb, delay and distortion effects. AudioMass also supports more than 20 hotkeys combinations and a dynamic responsive interface to ensure ease of use and that your productivity remains high. it is written solely in plain old-school javascript, weights approximately 65kb and has no backend or framework dependencies.
NOVA is a parallel dynamic equalizer. Appearing in the familiar layout of a parametric equalizer, each band also includes a full featured dynamics section allowing the processor to cover an impressively wide range of applications. Be it a master lacking density, the drum bus asking for more crispiness, or a sibilance problem in your perfect take: NOVA has an elegant answer.
A user friendly WYSIWYG drag and drop display paired with a classic “knob” interface gives quick and smooth access to the various parameters driving NOVA’s powerful processing capabilities. With its four dynamic EQ bands and additional high-pass and low-pass filter sections, NOVA can meet the most exotic demand. Intuitive equal loudness functions help finding the optimal setting without getting distracted by loudness differences.
In practice, the processor covers a whole bucket of tasks:
Of course NOVA features all helpers and workflow enhancements you’ve come to expect in a TDR plugin: A preset manager, undo/redo, A/B, detailed documentation, copy & paste, and much more.
www.tokyodawn.net
www.tokyodawn.net/tdr-nova
BatchEncoder is audio file conversion software. It supports most of popular audio file formats including both lossy and lossless compression. The program is very simple to use. BatchEncoder is basically a GUI front-end for command-line tools. All it does is create background processes and pass arguments to it with options set in the presets / format menu and additionally adds input and output file paths.
Features:
- Open-source, fast and simple.
- Front-end for command-line tools.
- Supports popular audio formats.
- File transcoding between audio formats.
- Multi-threaded conversion.
- Full UNICODE support.
- Multi-language user interface.
- Out of the box configuration for new users.
- Advanced options for experienced users.
wieslawsoltes.github.io/BatchEncoder
github.com/wieslawsoltes/BatchEncoder
hydrogenaud.io/index.php/topic,50822.0
The Audio File 