Astrofox is a motion graphics program that lets turn audio into amazing videos.

This component allows playing local video files in foobar2000 using libmpv. It is not a foobar decoder, it will just play the video for files that foobar is already playing via other input components. You may need to install other decoders or foo_input_ffmpeg to play certain files.
hydrogenaud.io/index.php?topic=119836.0
www.foobar2000.org/components/view/foo_mpv
github.com/sammoth/foo_mpv
AccessibleSpectrumAnalyser is a real time spectrum analysis plug-in that allows visual impaired users to as the accessible peak meter. Instead of monitoring the amplitude of the audio signal though, you will be monitoring the frequency components of the signal within a customizable selection of frequencies.
The plug-in uses the “clipping” sonification of the AccessiblePeakMeter. That is, you can set a threshold in dB and, as soon as the energy of any frequency in the selection goes past the threshold, you will hear a short beep. Like in the AccessiblePeakMeter, the beep starts at 440 Hz and it’s raised one semitone for each dB of difference between the frequency magnitude and the threshold. In case more than one frequency within the selection is higher than the threshold, then the highest one is taken into account for the sonification purpose.
There is only one single spectrum for both left and right channels: the two channels are mixed together before being analysed. In AccessiblePeakMeter, there is a separate sonification for peaks in the left and the right audio channel. In the AccessibleSpectrumAnalyser instead, one single sonification is panned from left to right and the panning represents the position of the peaking frequency in the whole spectrum, ranging from 20 Hz on the very left, to 20050 Hz on the very right. For example, if the selected spectrum peaks at 50 Hz then you’ll hear the beep towards the left, whereas if the peak is at 20 kHz the beep will occur towards the right.
depic.eecs.qmul.ac.uk/apm/spectrum
www.tbproaudio.de/products/accessiblemeters
Adds the ability for foobar2000 to interact with the Windows 10 media control overlay.
github.com/Hual/foo_mediacontrol
hydrogenaud.io/index.php?topic=113248.0
This is a component for the foobar2000 audio player, which provides a skinnable overlay UI.
theqwertiest.github.io/dotnet_title_bar
hydrogenaud.io/index.php?topic=121673
The PC based Soundcard Oscilloscope receives its data from the Soundcard with 44.1kHz and 16 Bit resolution. The data source can be selected in the Windows mixer (Microphone, Line-In or Wave). The frequency range depends on the sound card, but 20-20000Hz should be possible with all modern cards. The low frequency end is limited by the AC coupling of the line-in signal. Be aware, that most microphone inputs are only mono.
The oscilloscope contains in addition a signal generator for 2 channels for sine, square, triangular, sawtooth wave forms and different noise spectra in the frequency range from 0 to 20kHz. The signal can be defined by a mathematical formula as well. The signals are available at the speaker output of the sound card. These can be fed back to the oscillocope in order to generate Lissajous figures in the x-y mode.
An open-source lyrics plugin for foobar2000 that includes its own UI panel for displaying and sources for downloading lyrics that are not available locally. It is intended to be a replacement for LyricShowPanel3 so it is fully-featured and supports lyric searching, saving and editing directly from within foobar2000.
github.com/jacquesh/foo_openlyrics
www.reddit.com/r/foobar2000/comments/mm70rb/i_made_an_opensource_alternative_to
hydrogenaud.io/index.php?topic=120812.0
FreqTweak is a tool for FFT-based realtime audio spectral manipulation and display. It provides several algorithms for processing audio data in the frequency domain and a highly interactive GUI to manipulate the associated filters for each. It also provides high-resolution spectral displays in the form of scrolling-raster spectrograms and energy vs frequency plots displaying both pre- and post-processed spectra.
It is an extremely addictive audio toy, but I hope it has value for serious audio work too (sound design, etc). The spectrum analysis is pretty useful in its own right.