FFmpeg Audio Plugins

The following is a list of the integrated audio plug-ins¹⁶ .

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-ins¹⁶

credit to WPfilmmaker