Cmajor ~ Audio Programming Language

Posted by tom2tec on

The programming language for writing fast, portable audio software.

You’ve heard of C, C++, C#, objective-C… well, Cmajor is a C-family language designed specifically for writing DSP signal processing code.

Our goal is to improve on the current status-quo for audio development in quite a few ways:

  • To match (and often beat) the performance of traditional C/C++
  • To make the same code portable across diverse processor architectures (CPU, DSP, GPU, TPU etc)
  • To offer enough power and flexibility to satisfy professional audio tech industry users
  • To speed-up commercial product cycles by enabling sound-designers to be more independent from the instrument platforms
  • To attract students and beginners by being vastly easier to learn than C/C++

If you’re keen to learn the nitty-gritty of the language itself, the language guide offers a deep dive. To see some examples of the code, try the examples folder.

SAC ~ State-Of-The-Art Lossless Audio Compression

Posted by tom2tec on

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:

  • Input: wav file with 1-16 bit sample size, mono/stereo, pcm
  • Output: sac file including all input metadata
  • Decoded wav file is bit for bit identical to input wav file
  • MD5 of raw pcm values

github.com/slmdev/sac

Live Compositor ~ Realtime Video & Audio Mixing

Posted by tom2tec on

Live Compositor is an engine for applying effects to videos and for combining multiple videos together. On a very basic level, it is an application which exposes an HTTP API. The API allows you to specify where to get input videos, and how to modify and compose them together. The resulting outputs can then be written to a file or streamed to a separate service.

compositor.live
compositor.live/playground
github.com/software-mansion/live-compositor

Android VU Meter

Posted by tom2tec on

Realistic vintage Hi-Fi audio LED VU level meter, which shows relative loudness in decibels of the ambient sound, music or your voice. It features fall time selection, alternative VFD or Neon segments and calibration.

play.google.com/store/apps/details?id=com.bti.vuMeter

DMRA ~ Digital Media Renderer Analyser

Posted by tom2tec on

This Digital Media Renderer Analyser is a test application that evaluates the capabilities of a selected UPnP / DLNA Digital Media Renderer and recommends the optimum server settings for it to run with JRiver Media Center.

Optional Test Files

In addition to the tool, you can also download an optional set of sample test files here – warning download size 100 MByte

Database of Renderer Test Reports

You can download the database collection of the test results of all renderers so far tested here. Note if you want to add your renderer to this collection please email me the report.

www.whitebear.ch/dmra

TidyMP3 ~ Metadata Removal Tool

Posted by tom2tec on

This tool removes every kind of trash from your mp3-files. It searches for valid mp3 audiodata-frames and removes everything else. This has the big advantage that it will also remove tags which are in the middle of the file (as is the case with joined tracks) as well as broken frames (half-downloads) and malicious tags (Tag-buffer-overflow bug in WinAMP and Windows XP). Use this tool to cleanup your mp3 files before you add your own tag. No more double tags, or annoying ‘Lyrics’ data containing group names or misspelled song names.

cuemaster.org/tidymp3

Foobar2000 ~ Installing Analog VU Meters

Posted by tom2tec on

Adding an analog VU meter to the Foobar2000 2.x Default User Interface

Required component: foo_vis_vumeter

Directions:

  1. Download foo_vis_vumeter
  2. Click on foo_vis_vumeter which should install the component
  3. Click Apply and then Ok to restart Foobar
  4. Copy some .bin skin files to the …\AppData\Roaming\foobar2000-v2\vumeter folder (Shift+File>Browse configuration folder)
  5. Select View > Layout > Enable layout editing mode
  6. Right click the tab area in a panel and select Add New Tab
  7. Right click the new tab and rename it “Analog VU Meter” or whatever
  8. Right click the new tab display area and select Add New UI Element
  9. Select ‘Analog VU Meter (DirectX 12)’ from the list (Playback Visualization)
  10. Disable layout editing mode

Parameters:

Right mouse click on the meter display:

  • submenus – Layout / Mode / Levels / Decay / Tuning / Options
  • Fullscreen
  • Skin Selection

Mouse wheel (hover over meters)

  • Adjusts current Tuning selection

Resources:
Analog VU Meter Skin Gallery
Foobar2000 1.x ~ Installing Analog VU Meters

Sources:
www.hydrogenaud.io/forums/index.php?showtopic=33939
www.hydrogenaud.io/forums/index.php?showtopic=106793
www.head-fi.org/t/616963/the-foobar2000-resource-thread/45#post_9382013
foobar2000.ru/forum/viewtopic.php?t=5012 (Russian)

Discogs Album Art Visualizer

Posted by tom2tec on

An album art visualizer for your Discogs collection.

discovers.antisound.net

Online Multichannel Peakmeter Using AudioWorklet

Posted by tom2tec on

hydrogenaud.io/index.php/topic,126685

foo_dr_meter ~ Foobar2000 Dynamic Range Meter

Posted by tom2tec on

A simple Dynamic Range meter based on DR estimation formula published by https://dr.loudness-war.info/. For foobar2000 version 1.5 and newer.

foobar.hyv.fi/?view=foo_dr_meter

Binary Synth ~ Audio Synthesis From Binary

Posted by tom2tec on

A web-synthesizer that generates sound from the binary code of any files. It can synthesize sound directly in the browser, or be a generator of MIDI messages to external devices or DAWs, turning any file into a score. All the application code is written in Javascript and along with everything you need is packed into a single .html file of about 750kb. The synthesizer doesn’t need internet, it can be downloaded and run locally on any device with a browser.

The application reads the file sequentially, and due to the high speed of reading and random deviation of reading duration, we can get quite unpredictable generation of timbre nuances, and at certain settings we can switch to granular synthesis.

github.com/MaxAlyokhin/binary-synth
bs.stranno.su

Picard Barcode Scanner ~ Scan Your Collection

Posted by tom2tec on

Picard Barcode Scanner helps you to tag your physical releases with MusicBrainz Picard. It allows you to scan the barcode of e.g. a CD and have the corresponding metadata from MusicBrainz automatically loaded into Picard on your desktop.

This is especially useful if you have your physical music collection already digitized and want to tag the files using the correct album.

github.com/phw/PicardBarcodeScanner