FFmpeg Audio Plugins

The following is a list of the integrated audio plug-ins¹⁵ .

F_abench: Benchmark part of a filtergraph.
F_acompressor: Audio compressor.
F_acontrast: Simple audio dynamic range compression/expansion filter.
F_acrusher: Reduces audio bit resolution.
F_acue: Delay filtering to match a cue.
F_adecorrelate: Apply decorrelation to input audio stream.
F_adelay: Delays one or more audio channels.
F_adenorm: Remedy denormals by adding extremely low-level noise.
F_adynamicequalizer: Apply dynamic equalization to input audio stream.
F_adynamicsmooth: Apply dynamic smoothing to input audio stream.
F_aderivative: Compute derivative of input audio.
F_aecho: Adds echoing to the audio.
F_aemphasis: Audio emphasis.
F_aeval: Filters audio signal according to a specific expression.
F_aeexciter: Enhance high frequency part of audio.
F_afade: Fades in/out input audio.
F_aformat: Convert the input audio to one of he specified formats.
F_afreqshift: Apply frequency shifting to input audio.
F_afwtdn: Reduce broadband noise from input samples using Wavelets.
F_agate: Audio gate.
F_alatency: Measure filtering latency.
F_allpass: Applies a two-pole all-pass filter.
F_aloop: Loops audio samples.
F_anoisesrc: Generates a noise audio signal.
F_aperms: Set permissions for the output audio frame.
F_aphaser: Adds a phasing effect to the audio.
F_aphaseshift: Apply phase shifting to input audio.
F_apsyclip: Apply Psychoacoustic clipper to input audio stream.
F_arealtime: Slows down filtering to match realtime.
F_aresample: Resamples audio data.
F_asetrate: Change the sample rate without altering the data.
F_aspectralstats: Display frequency domain statistical information about the audio channels. Statistics are calculated and stored as metadata for each audio channel and for each audio frame.
F_astats: Shows time domain statistics about audio frames.
F_asubboost: Boost subwoofer frequencies.
F_asubcut: Cut subwoofer frequencies.
F_asupercut: Cut super frequencies.
F_asuperpass: Apply high order Butterworth band-pass filter.
F_asuperstop: Apply high order Butterworth band-stop filter.
F_atempo: Adjusts audio tempo so that when you speed up audio, it will adjust the pitch accordingly to make audio sounds more normal, but faster without being badly distorted. Its behavior is similar to what can be seen when you watch a youtube video, click the gear icon, and select a speed greater or less than 1.
F_atilt: Apply spectral tilt filter to audio stream.
F_atrim: Pick one continuous section from the input, drop the rest.
F_bandpass: Applies a two-pole Butterworth band-pass filter.
F_bandreject: Applies a two-pole Butterworth band-reject filter.
F_bass: Boosts or cuts lower frequencies.
F_biquad: Applies a biquad IIR filter with the given coefficents.
F_chorus: Adds a chorus effect to the audio.
F_compand: Compresses or expands audio dynamic range.
F_compensationdelay: audio compensation delay line.
F_crossfeed: Apply headphone crossfeed which blends the left and right channels of a stereo audio recording. It is mainly used to reduce extreme stereo separation of low frequencies in order to produce more speaker like sound.
F_crystalizer: Simple Expand Audio Dynamic Range filter.
F_dcshift: Applies a DC shift to the audio.
F_drmeter: Measure audio dynamic range where setting window length in seconds is used to split audio into segments of equal length.
F_dyaudnorm: Dynamic Audio Normalizer. When using this plugin, be sure to attach effect to all audio tracks by dragging the plugin to the 1^st audio track and then right mouse clicking all subsequent audio tracks which brings up an menu. Highlight the effect shown in the middle section and click OK.
F_earwax: Widens the stereo image. When using this plugin, be sure to attach effect to all audio tracks by dragging the plugin to the 1^st audio track and then right mouse clicking all subsequent audio tracks which brings up an menu. Highlight the effect shown in the middle section and click OK.
F_equalizer: Applies two-pole peaking equalization (EQ) filter.
F_extrastereo: Increases difference between stereo audio channels. When using this plugin, be sure to attach effect to all audio tracks by dragging the plugin to the 1^st audio track and then right mouse clicking all subsequent audio tracks which brings up a menu. Highlight the effect shown in the middle section and click OK.
F_flanger: Applies a flanging effect to the audio.
F_haas: Apply Haas Stereo Enhancer for a more natural sounding pan effect or more clarity in the center of the mix. With this filter applied to mono signals it gives some directionality and stretches its stereo image.
F_highpass: Applies a high-pass filer with 3 dB point frequency.
F_hilbert: Generate a Hilbert transform FIR coefficients.
F_loudnorm: EBU R128 loudness normalization.
F_lowpass: Applies a low-pass filter with 3 dB point frequency.
F_mcompand: Multiband Compress or expand audiodynamic range. The input audio is divided into bands which is like the crossover of a loudspeaker, resulting in flat frequency response when absent compander action.
F_pan: Remix channels with coefficients (panning).
F_silenceremove: Removes silence.
F_sine: Generate sine wave audio signal.
F_stereotools: Applies various stereo tools. When using this plugin, be sure to attach effect to all audio tracks by dragging the plugin to the 1^st audio track and then right mouse clicking all subsequent audio tracks which brings up an menu. Highlight the effect shown in the middle section and click OK.
F_stereowiden: Applies stereo widening effect. When using this plugin, be sure to attach effect to all audio tracks by dragging the plugin to the 1^st audio track and then right mouse clicking all subsequent audio tracks which brings up an menu. Highlight the effect shown in the middle section and click OK.
F_tiltshelf: Boost or cut the lower frequencies and cut or boost higher frequencies of the audio using a two-pole shelving filter with a response similar to that of a standard hi-fi’s tone-controls. This is also known as shelving equalization (EQ).
F_treble: Boosts or cuts upper frequencies.
F_tremolo: Applies tremolo effect.
F_vibrato: Applies vibrato effect.
F_virtualbass: Apply audio Virtual Bass filter.
F_volume: Change input volume.
F_volumedetect: Detect audio volume.

Footnotes

... plug-ins ¹⁵: credit to WPfilmmaker

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