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

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

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

tau_analyzer_main_window

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Downloads ~ VirusTotal

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

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Foobar2000 ~ Playlists & Autoplaylists

Playlists, or named lists of songs, are an essential aspect of Foobar2000. Whenever you add a song to Foobar, you are essentially adding it to some playlist.

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 at times.

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 editable playlist.

Creating an Autoplaylist of a 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 (with the path)

AutoPlaylist query examples:

Lossless ~ “$info(encoding)” IS lossless
Lossy ~ “$info(encoding)” IS lossy
Never played ~ %play_count% MISSING
No Dynamic Range info ~ %dynamic_range_album% MISSING
No ReplayGain info ~ %replaygain_track_gain% MISSING
No Album 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:

foo_playcount ~ Foobar2000 playback stats

You can extend Foobar2000s 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 ~ %first_played%
  • Date and time a track was last played ~ %last_played%
  • The number of times a track has been played ~ %play_count%
  • Date and time a track was first added to the Media Library ~ %added%
  • Song rating ~ %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, “★★★”, with %rating_stars%
  • Displayed as five stars, “★★★☆☆”, 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.

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Display (Title) Formattingplaylist viewer