DFasma ~ Compare Audio Files In Time & Frequency


DFasma is free open-source software which is used to compare audio files in time and frequency. The comparison is first visual, using waveforms and spectra. It is also possible to listen to time-frequency segments in order to allow perceptual comparison. It is basically dedicated to analysis. Even though there are basic functionalities to align the signals in time and amplitude, this software does not aim to be an audio editor.

Features:

  • Can load about 25 different audio formats (thanks to libsndfile or libsox).
  • Shows spectrogram, amplitude, phase spectra and group delay.
  • Can play a filtered sound given a selected frequency band.
  • Rectification of the spectrogram tilt (cepstral lifting).
  • Can create and edit segmentation files.
  • Can create and edit fundamental frequency (F0) files (thanks to REAPER).
  • Runs under Linux, Mac OSX and Windows.

dfasman - ss1.4_2comparison

gillesdegottex.github.io/dfasma

Subvert Audio ~ Encourage Musical Creativity


Subvert Audio is a music program designed to try and stimulate creativity in the user. To do this, it imposes certain restraints on the user, in an attempt to encourage more creative thought processes, and solutions to the problem these restraints introduce. In addition to the restraints imposed, Subvert Audio strives to encourage exploration of the program, and reward efforts to discover/create new ways of using it. It is, essentially, a program that is designed to be subverted, the idea being that in the process of doing so, the user’s creativity will be stimulated.

In some ways, the program is similar to graphical music programming languages such as Max/MSP et al. Indeed, prior knowledge of such environments could be seen as beneficial to Subvert Audio’s methods of stimulating creativity.

subvert_audio_linux

subvertaudio.sourceforge.net

foo_wave_seekbar ~ Foobar2000 Waveform Seekbar


Enhance the appearance and functionality of Foobar2000 by adding a visual waveform representation of the currently playing audio track, which can be used to navigate to any point in the image of the track by clicking there.

Waveform Seekbar is a UI element for both the Default UI and Columns UI that provides seekbar functionality (seeking, position indicator) on top of a pretty image of the waveform of the currently playing song, drawn using either Direct3D 9.0c or Direct2D 1.0.

foobar_waveform_seekbar

Foobar Waveform Seekbar in action

Topic ~ Hydrogen Audio
Download ~ Hydrogen Audio
Documentation ~ Hydrogen Audio
Source code ~ GitHub

Additional resources:

Waveform Minibar ~ CUI Only
Installing a foobar component
Waveform ~ Wikipedia

Baudline ~ Visual Signal Analyzer


Baudline is a time-frequency browser designed for scientific visualization of the spectral domain. Signal analysis is performed by Fourier, correlation, and raster transforms that create colorful spectrograms with vibrant detail. Conduct test and measurement experiments with the built in function generator, or play back audio files with a multitude of effects and filters. The baudline signal analyzer combines fast digital signal processing, versatile high speed displays, and continuous capture tools for hunting down and studying elusive signal characteristics.

Explore, Analyze, and Discover.

baudline

Linux / MacOS / Unix

Website
Downloads
Twitter
Wikipedia

Baudline Mystery Signal Of The Month

Every month a new mystery signal is posted. Can you identify it?

Monthly Mystery Signal

Tau Analyzer ~ Audio Source Verification


Tau AnalyzerΒ is a free program, which can help you to distinguish with reasonable accuracy the original studio-basedΒ CDsΒ from poor quality fakes, that have been “reconstructed” using a lossy audio source, such asΒ mp3. Using this program you can check the authenticity of your purchased or borrowed musicΒ CDs.

Tau Analyzer features an intuitive user interface, allowing users to work directly with audioΒ CDs, and has some additional functions such as spectrum and frequency analyzers, ATIP andΒ ISRCΒ data readers, etc.

tau_analyzer_main_window

tausoft.org

VSXu ~ Audio / Music Visualizer


VSXu (VSX Ultra) is an OpenGL-based (hardware-accelerated), modular programming environment with its main purpose to visualize music and create graphic effects in real-time.

VSXu - small

www.vsxu.com
www.vsxu.com/download
store.steampowered.com/app/981590/VSXu_Player
en.wikipedia.org/wiki/VSXu

Presets:
www.deviantart.com/jaw/art/Abstract-Star-57883008
www.deviantart.com/jaw/art/dragonheart-58013353
www.deviantart.com/jaw/art/psybubbles-58013078
www.deviantart.com/jaw/art/star-zoomer-39992664
www.deviantart.com/milcr/art/seea-103811449
www.deviantart.com/darthdavid/art/Whirlpool-168278710
www.deviantart.com/dragon99099/art/White-Cap-14-DTSD-370392294

Spectro ~ Audio File Analyzer


Spectro is a freeware audio file analyzer for Windows. Currently capable of reading FLAC, APE, MP3 and WAV files. Spectro lets you view vital data about compressed audio files and creates a spectrogram of the wave data. This allows you to quickly and easily spot quality issues with a file and also look for transcodes.

spectro

spectro.enpts.com

Sonic Visualiser ~ View & Analyze Audio Files


The aim of Sonic Visualiser is to be the first program you reach for when want to study a musical recording rather than simply listen to it.

We hope Sonic Visualiser will be of particular interest to musicologists, archivists, signal-processing researchers and anyone else looking for a friendly way to take a look at what lies inside the audio file.

sv-3.0-win-thumb

www.sonicvisualiser.org
www.sonicvisualiser.org/download
www.vamp-plugins.org/download
Introduction Video

Foobar2000 ~ Playlists & Autoplaylists


Playlists, or named lists of songs, are an essential aspect of Foobar2000. Whenever you add a song to Foobar, you are adding it to one of Foobar’s playlists. Foobar allows you to create and maintain different playlists, which are just entitled lists of your audio tracks (files). The playlists link to audio files in a ‘many to one’ relationship; that is, there can be many tracks on different playlists that reference the same audio track. Foobar can import and exports playlists in a variety of formats; and stores its own playlists as .fpl files. (This is different from adding a song to your Foobar2000 Library).

Playlists can be created manually by adding individual songs, or automatically by specifying a set of conditions in a query with the result displayed as an “Autoplaylist”. Manually created playlists are static, they don’t change unless you change them; Autoplaylists are dynamic, that is the results may change whenever the Autoplaylist is queried.

Playlists created manually can be edited directly, while Autoplaylists are edited by modifying the query. However, you can save the results of an Autoplaylist as a new static, and therefore editable, playlist.

Creating an Autoplaylist of an Albumlist item like genre:

  1. Select by genre from the Albumlist view selector
  2. Select a genre from the list of genres
  3. Right click that selected genre and select Create Autoplaylist

You will now have a new Autoplaylist listed on the playlist manager tab with the name of the genre you selected. Playlists created this way are called an Album List branch.

Creating an Autoplaylist of a folder’s contents:

  1. Select the Search tab
  2. enter %path% HAS replace this with the actual path  in the search field
  3. Select ...
  4. Select Create Autoplaylist
  5. Rename the new playlist (hint, with the path)

AutoPlaylist query examples:

  • Lossless ~ “$info(encoding)” IS lossless
  • Lossy ~ “$info(encoding)” IS lossy
  • Missing title ~ title MISSING (no percent signs)
  • Missing genre ~ genre MISSING
  • Never played ~ %play_count% MISSING
  • No Dynamic Range info ~ %dynamic_range_album% MISSING
  • No ReplayGain info ~ %replaygain_track_gain% MISSING
  • No Artist info ~ %path% HAS album AND album artist MISSING
  • Played often ~ %play_count% GREATER 9
  • Randomly sorted ~ ALL SORT BY “$rand()”
  • Recently added ~ %added% DURING LAST 1 WEEKS
  • Recently played ~ %last_played% DURING LAST 1 WEEK
  • Recently modified ~ %last_modified% DURING LAST 2 WEEKS

Foobar Playlist Management Components:

Additional resources:

Building Autoplaylist queries ~ Foobar2000: Query Syntax
Formatting playlist contents ~ Title Formatting Introduction
Adding Playlist Headers ~ Playlist GroupingΒ Schemes

Audacious & XMMS ~ VU Meters Plugin


Open source, multi-instance, skinnable VU meters for Audacious and XMMS.

sc5

Audacious with several instances

vumeterplugin.sourceforge.net
Discussion
Downloads

Skins:
http://vumeterplugin.sourceforge.net/themes.php
http://www.gnome-look.org/content/show.php/LED+VU+meter?content=140540

foo_playcount ~ Foobar2000 Playback Stats


You can extend Foobar2000 functionality by increasing the information the player maintains. Installing the foo_playcount component allows Foobar to both keep track of additional data, and adds the following user available fields:

  • Date and time a track was first played ~Β %first_played%
  • Date and time a track was last played ~Β %last_played%
  • The number of times a track has been played ~Β %play_count%
  • Date and time a track was first added to the Media Library ~Β %added%
  • Song rating ~Β %rating%

Song Rating Playlist Display

The songs rating can now be displayed in a playlist viewer in two ways:

  • On a 1 to 5 scale with %rating%
  • Displayed as up to five stars, “β˜…β˜…β˜…”, with %rating_stars%
  • Displayed as five stars, “β˜…β˜…β˜…β˜†β˜†”, with %rating_stars_fixed%

Note: This component should be installed at the same time as Foobar2000, if your goal is to have a complete play count history.

Discussion
Download
Documentation
Display (Title) Formattingplaylist viewer

foo_playcount_2003

This component uses the same database backend that foo_playcount utilises for logging plays but has many more advanced features and fewer limitations.

  • Playcounts and dates can edited for any context menu selection.
  • Data can be imported from file tags or fields provided by other components.
  • Ratings up to 10 are supported.
  • You can customise how long you have to listen before a play count is incremented.
  • The current time is available via title formatting as a full date time string or Unix timestamp.
  • First played, last played and added are all available as Unix timestamps.
  • How records are bound to tracks can be configured in theΒ Advanced Preferences.

marc2k3.github.io/component/playcount-2003

ORBAN Loudness Meter ~ Loudness & Peak Display


This software simultaneously displays instantaneous peaks, VU, PPM, CBS Technology Center loudness, and ITU BS.1770 loudness. All meters include peak-hold functionality that makes the peak indications of the meters easy to see.

The software accepts two-channel stereo inputs. The VU and PPM meters are split to indicate the left and right channels. The PPM meter also displays the instantaneous peak values of the L and R digital samples. ~ Hydrogen Audio

ORBAN Meter

www.orban.com/orban/meter