Audio

Convert, trim, normalize and analyze audio. 21 tools. Run any of them from the app, as dogubako audio <tool>, over the HTTP API or as an MCP tool.

Tool	Id	Needs
Convert Audio	audio.convert	FFmpeg, FFprobe
Compress Audio	audio.compress	FFmpeg, FFprobe
Trim Audio	audio.trim	FFmpeg, FFprobe
Split Audio	audio.split	FFmpeg, FFprobe
Merge Audio	audio.merge	FFmpeg, FFprobe
Normalize Audio	audio.normalize	FFmpeg, FFprobe
Change Volume	audio.volume	FFmpeg, FFprobe
Change Sample Rate	audio.sample_rate	FFmpeg, FFprobe
Audio Channels	audio.channels	FFmpeg, FFprobe
Remove Silence	audio.remove_silence	FFmpeg, FFprobe
Detect Silence	audio.detect_silence	FFmpeg, FFprobe
Audio Waveform	audio.waveform	FFmpeg, FFprobe
Audio Spectrogram	audio.spectrogram	FFmpeg, FFprobe
Audio Info	audio.info	FFmpeg, FFprobe
Audio Tags	audio.tags	FFmpeg, FFprobe
Reduce Noise	audio.denoise	FFmpeg, FFprobe
Change Audio Speed / Pitch	audio.speed	FFmpeg, FFprobe
Equalizer	audio.equalizer	FFmpeg, FFprobe
Fade In / Out	audio.fade	FFmpeg, FFprobe
Reverse Audio	audio.reverse	FFmpeg, FFprobe
Extract Audio from Video	audio.extract_from_video	FFmpeg, FFprobe

Convert Audio

external engineFFmpegFFprobeprogress

Convert audio (or the soundtrack of videos) to MP3, AAC/M4A, Ogg Vorbis, Opus, FLAC, WAV, AIFF, ALAC, WMA or AC-3 with bitrate, VBR, sample rate, channel and bit-depth control.

dogubako audio convert <files…> [options]

Id audio.convert · MCP audio_convert · Output: files · Timeout 180 min

Also found by: mp3, wav, flac, aac, m4a, ogg, opus, aiff, alac, wma, transcode, format

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
format	--format	choice	mp3	One of: mp3, m4a (AAC (M4A)), ogg (Ogg Vorbis), opus, flac (FLAC (lossless)), wav (WAV (uncompressed)), aiff, alac (Apple Lossless (M4A)), wma, ac3 (AC-3 (Dolby Digital)).
bitrate	--bitrate	integer 32–640	192	Bitrate (kbit/s). Only used when format is one of mp3, m4a, ogg, opus, wma, ac3.
vbr_quality	--vbr-quality	integer 0–9		Use variable bitrate instead of a fixed bitrate (MP3 / Vorbis). Only used when format is one of mp3, ogg. Advanced.
sample_rate	--sample-rate	choice	keep	One of: keep, 8000 (8 kHz), 11025 (11.025 kHz), 16000 (16 kHz), 22050 (22.05 kHz), 24000 (24 kHz), 32000 (32 kHz), 44100 (44.1 kHz), 48000 (48 kHz), 88200 (88.2 kHz), 96000 (96 kHz), 192000 (192 kHz). Advanced.
channels	--channels	choice	keep	One of: keep, 1 (Mono), 2 (Stereo). Advanced.
bit_depth	--bit-depth	choice	keep	One of: keep (Keep / default), 16 (16-bit), 24 (24-bit), 32 (32-bit integer), 32f (32-bit float). Only used when format is one of wav, flac, aiff. Advanced.

Compress Audio

external engineFFmpegFFprobeprogress

Make audio files smaller by re-encoding to an efficient codec at a lower bitrate, optionally in mono (ideal for voice).

dogubako audio compress <files…> [options]

Id audio.compress · MCP audio_compress · Output: files · Timeout 180 min

Also found by: reduce size, smaller, shrink, bitrate, voice memo, podcast

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
level	--level	choice	balanced	One of: light (Light (160 kbit/s)), balanced (Balanced (128 kbit/s)), strong (Strong (96 kbit/s)), voice (Voice (48 kbit/s mono)).
format	--format	choice	mp3	One of: mp3, m4a (AAC (M4A)), opus (Opus (best quality per size)).
mono	--mono	boolean	false	Downmix to mono (halves the size of stereo audio).

Trim Audio

external engineFFmpegFFprobeprogress

Cut audio to a start/end time or duration, with optional fade in and fade out.

dogubako audio trim <files…> [options]

Id audio.trim · MCP audio_trim · Output: files · Timeout 180 min

Also found by: cut, clip, shorten, ringtone, excerpt, start, end

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
start	--start	text
end	--end	text
duration	--duration	text
fade_in	--fade-in	number 0–600	0	Advanced.
fade_out	--fade-out	number 0–600	0	Advanced.

Split Audio

external engineFFmpegFFprobeprogress

Split audio into parts: fixed-length chunks, at given timestamps, or automatically at silences.

dogubako audio split <file> [options]

Id audio.split · MCP audio_split · Output: files · Timeout 180 min

Also found by: chunks, segments, cut into pieces, tracks, silence split, chapters

Option	CLI	Type	Default	Description
input (required)	positional	file		Audio file. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
mode	--mode	choice	duration	One of: duration (Every N seconds), timestamps (At timestamps), silence (At silences).
chunk_seconds	--chunk-seconds	number 1–86400	600	Only used when mode is duration.
points	--points	text		Only used when mode is timestamps.
threshold_db	--threshold-db	number -100–0	-40	Only used when mode is silence.
min_silence	--min-silence	number 0.05–60	1	Minimum silence (s). Only used when mode is silence.
min_part	--min-part	number 0–3600	5	Minimum part length (s). Only used when mode is silence. Advanced.

Merge Audio

external engineFFmpegFFprobeprogress

Join audio files end to end, with optional crossfades or gaps of silence between them.

dogubako audio merge <files…> [options]

Id audio.merge · MCP audio_merge · Output: files · Timeout 180 min

Also found by: join, concatenate, combine, crossfade, mix tape, append

Option	CLI	Type	Default	Description
input (required)	positional	files		Files in playback order (at least two). Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
crossfade	--crossfade	number 0–30	0	Crossfade (s).
gap	--gap	number 0–60	0	Silence between files (s). Advanced.
format	--format	choice	same	One of: same (Same as first file), mp3, m4a (AAC (M4A)), wav, flac, opus, ogg (Ogg Vorbis).

Normalize Audio

external engineFFmpegFFprobeprogress

Normalize loudness with two-pass EBU R128 (loudnorm: measure, then apply to a target LUFS / true peak / LRA) or peak-normalize to a dBFS level.

dogubako audio normalize <files…> [options]

Id audio.normalize · MCP audio_normalize · Output: files · Timeout 180 min

Also found by: loudness, lufs, ebu r128, loudnorm, volume leveling, peak, podcast, spotify, youtube

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
mode	--mode	choice	loudness	One of: loudness (Loudness (EBU R128)), peak.
preset	--preset	choice	streaming	One of: streaming (Streaming (−14 LUFS)), podcast (Podcast (−16 LUFS)), broadcast (Broadcast EBU R128 (−23 LUFS)), custom. Only used when mode is loudness.
target_lufs	--target-lufs	number -70–-5	-16	Only used when preset is custom.
true_peak	--true-peak	number -9–0	-1.5	True peak (dBTP). Only used when mode is loudness. Advanced.
lra	--lra	number 1–50	11	Loudness range (LU). Only used when mode is loudness. Advanced.
peak_db	--peak-db	number -30–0	-1	Peak level (dBFS). Only used when mode is peak.

Change Volume

external engineFFmpegFFprobeprogress

Make audio louder or quieter by decibels or a factor, with an optional limiter to prevent clipping.

dogubako audio volume <files…> [options]

Id audio.volume · MCP audio_volume · Output: files · Timeout 180 min

Also found by: louder, quieter, gain, amplify, boost, db, attenuate

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
unit	--unit	choice	db	One of: db (Decibels), factor.
amount	--amount	number -60–60	6	dB (e.g. +6, −3) or factor (e.g. 1.5, 0.5).
limiter	--limiter	boolean	true	Prevent clipping with a limiter at −1 dBFS.

Change Sample Rate

external engineFFmpegFFprobeprogress

Resample audio to another sample rate (high-quality SoX resampler when available) and change the bit depth of WAV/FLAC/AIFF.

dogubako audio sample-rate <files…> [options]

Id audio.sample_rate · MCP audio_sample_rate · Output: files · Timeout 180 min

Also found by: resample, 44.1khz, 48khz, 96khz, bit depth, 16-bit, 24-bit, hz

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
rate	--rate	choice	48000	One of: keep, 8000 (8 kHz), 11025 (11.025 kHz), 16000 (16 kHz), 22050 (22.05 kHz), 24000 (24 kHz), 32000 (32 kHz), 44100 (44.1 kHz), 48000 (48 kHz), 88200 (88.2 kHz), 96000 (96 kHz), 192000 (192 kHz).
bit_depth	--bit-depth	choice	keep	One of: keep (Keep / default), 16 (16-bit), 24 (24-bit), 32 (32-bit integer), 32f (32-bit float).

Audio Channels

external engineFFmpegFFprobeprogress

Convert to mono or stereo, downmix surround to stereo, extract the left or right channel, or swap channels.

dogubako audio channels <files…> [options]

Id audio.channels · MCP audio_channels · Output: files · Timeout 180 min

Also found by: mono, stereo, downmix, left channel, right channel, swap, 5.1, surround

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
operation	--operation	choice	mono	One of: mono (Mix to mono), stereo (Make stereo), downmix (Downmix surround to stereo), left (Left channel only (mono)), right (Right channel only (mono)), swap (Swap left/right).

Remove Silence

external engineFFmpegFFprobeprogress

Trim silence from the start and end, or shorten every pause longer than a minimum duration.

dogubako audio remove-silence <files…> [options]

Id audio.remove_silence · MCP audio_remove_silence · Output: files · Timeout 180 min

Also found by: silence, pauses, dead air, trim silence, tighten, silenceremove

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
mode	--mode	choice	edges	One of: edges (Start and end only), all (All pauses).
threshold_db	--threshold-db	number -100–0	-50	Audio below this level counts as silence.
min_silence	--min-silence	number 0.05–60	0.5	Minimum pause (s). Only used when mode is all.
keep_silence	--keep-silence	number 0–10	0.25	Pause to keep (s). Only used when mode is all.

Detect Silence

external engineFFmpegFFprobeprogress

Find silent intervals in audio or video (FFmpeg silencedetect) and list their start, end and duration.

dogubako audio detect-silence <file> [options]

Id audio.detect_silence · MCP audio_detect_silence · Output: structured data · Timeout 180 min

Also found by: silence, pauses, gaps, silencedetect, quiet parts, dead air

Option	CLI	Type	Default	Description
input (required)	positional	file		Audio file. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
threshold_db	--threshold-db	number -100–0	-50
min_duration	--min-duration	number 0.01–600	0.5	Minimum duration (s).

Audio Waveform

external engineFFmpegFFprobeprogress

Render a waveform image (PNG) of audio with custom size, colors and scale, and optionally export min/max peak data as JSON.

dogubako audio waveform <files…> [options]

Id audio.waveform · MCP audio_waveform · Output: files · Timeout 180 min

Also found by: waveform, visualize, peaks, soundwave, image, showwavespic, podcast art

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
width	--width	integer 64–8000	1800
height	--height	integer 32–4000	280
color	--color	color	#3b82f6
background	--background	color	#ffffff
transparent	--transparent	boolean	false	Transparent background instead of a color.
split_channels	--split-channels	boolean	false	Draw each channel separately.
scale	--scale	choice	lin	One of: lin (Linear), log (Logarithmic), sqrt (Square root), cbrt (Cube root). Advanced.
peaks	--peaks	boolean	false	Also export peak data (JSON) for web players.
points	--points	integer 10–100000	1000	Only used when peaks is true. Advanced.

Audio Spectrogram

external engineFFmpegFFprobeprogress

Render a spectrogram image (frequency over time) of audio with color scheme, scale and legend options.

dogubako audio spectrogram <files…> [options]

Id audio.spectrogram · MCP audio_spectrogram · Output: files · Timeout 180 min

Also found by: spectrum, frequency, fft, visualize, showspectrumpic, analysis

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
width	--width	integer 64–8000	1024
height	--height	integer 64–4000	512
color	--color	choice	intensity	One of: intensity, rainbow, magma, viridis, plasma, cividis, fire, cool, green, channel, moreland, nebulae, terrain.
mode	--mode	choice	combined	One of: combined (All channels combined), separate (Channels separately).
scale	--scale	choice	log	One of: log (Logarithmic), sqrt (Square root), cbrt (Cube root), lin (Linear). Advanced.
frequency_scale	--frequency-scale	choice	lin	One of: lin (Linear), log (Logarithmic). Advanced.
legend	--legend	boolean	true

Audio Info

external engineFFmpegFFprobeprogress

Show audio format, codec, bitrate, sample rate, channels and tags; optionally measure loudness (EBU R128 integrated LUFS, LRA, true peak).

dogubako audio info <files…> [options]

Id audio.info · MCP audio_info · Output: structured data · Timeout 60 min

Also found by: metadata, tags, bitrate, sample rate, lufs, loudness, ffprobe, properties

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
loudness	--loudness	boolean	false	Measure loudness (decodes the whole file).

Audio Tags

external engineFFmpegFFprobeprogress

Read or edit audio tags (title, artist, album, year, genre, track, comment…) and embed or remove cover art — without re-encoding.

dogubako audio tags <file> [options]

Id audio.tags · MCP audio_tags · Output: files · Timeout 180 min

Also found by: id3, metadata, mp3 tags, cover art, album art, vorbis comment, artist, title, tag editor

Option	CLI	Type	Default	Description
input (required)	positional	file		Audio file. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
title	--title	text
artist	--artist	text
album	--album	text
album_artist	--album-artist	text
year	--year	text
genre	--genre	text
track	--track	text
disc	--disc	text
composer	--composer	text
comment	--comment	text
cover	--cover	file		Cover image. Accepts image/*.
remove_cover	--remove-cover	boolean	false
clear_all	--clear-all	boolean	false	Remove all existing tags before writing. Advanced.

Reduce Noise

external engineFFmpegFFprobeprogress

Reduce background hiss and hum with FFmpeg’s FFT denoiser (afftdn) or non-local-means (anlmdn), plus optional high-/low-pass filters.

dogubako audio denoise <files…> [options]

Id audio.denoise · MCP audio_denoise · Output: files · Timeout 180 min

Also found by: noise reduction, hiss, hum, background noise, clean audio, afftdn, anlmdn, rumble

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
method	--method	choice	afftdn	One of: afftdn (FFT denoise (adaptive)), anlmdn (Non-local means).
strength	--strength	choice	medium	One of: light, medium, strong.
highpass	--highpass	number 0–2000	80	Remove rumble below this frequency.
lowpass	--lowpass	number 0–24000	0	Low-pass (Hz, 0 = off). Advanced.
noise_floor	--noise-floor	number -80–-20	-50	Noise floor (dB). Only used when method is afftdn. Advanced.

Change Audio Speed / Pitch

external engineFFmpegFFprobeprogress

Change tempo without affecting pitch (0.25×–4×) and/or shift pitch by semitones — uses Rubber Band when available.

dogubako audio speed <files…> [options]

Id audio.speed · MCP audio_speed · Output: files · Timeout 180 min

Also found by: tempo, pitch shift, faster, slower, playback speed, semitones, nightcore, chipmunk

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
tempo	--tempo	number 0.25–4	1.25
pitch	--pitch	number -24–24	0	Pitch (semitones).
engine	--engine	choice	auto	One of: auto, rubberband (Rubber Band), atempo (FFmpeg atempo/asetrate). Advanced.

Equalizer

external engineFFmpegFFprobeprogress

Shape the sound with presets (bass boost, treble, voice clarity, podcast, loudness) or custom EQ bands, plus high-/low-pass filters.

dogubako audio equalizer <files…> [options]

Id audio.equalizer · MCP audio_equalizer · Output: files · Timeout 180 min

Also found by: eq, bass boost, treble, voice, podcast, highpass, lowpass, tone

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
preset	--preset	choice	bass_boost	One of: bass_boost (Bass boost), bass_cut (Bass cut), treble_boost (Treble boost), treble_cut (Treble cut), voice (Voice clarity), podcast (Podcast (voice + compression)), loudness (Loudness (smile curve)), none (None (custom only)).
bands	--bands	text		Custom bands as frequency:gain_dB[:Q], comma separated.
highpass	--highpass	number 0–5000	0	High-pass (Hz, 0 = off). Advanced.
lowpass	--lowpass	number 0–24000	0	Low-pass (Hz, 0 = off). Advanced.

Fade In / Out

external engineFFmpegFFprobeprogress

Add a fade-in at the start and/or a fade-out at the end of audio, with selectable fade curves.

dogubako audio fade <files…> [options]

Id audio.fade · MCP audio_fade · Output: files · Timeout 180 min

Also found by: fade in, fade out, afade, intro, outro, smooth

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.
fade_in	--fade-in	number 0–600	2	Fade in (s).
fade_out	--fade-out	number 0–600	3	Fade out (s).
curve	--curve	choice	tri	One of: tri (Linear), qsin (Quarter sine), esin (Exponential sine), log (Logarithmic), exp (Exponential), par (Parabola). Advanced.

Reverse Audio

external engineFFmpegFFprobeprogress

Play audio backwards (the whole file is buffered in memory).

dogubako audio reverse <files…>

Id audio.reverse · MCP audio_reverse · Output: files · Timeout 180 min

Also found by: backwards, reverse, backmasking, areverse

Option	CLI	Type	Default	Description
input (required)	positional	files		Audio files. Accepts audio/*, video/*, .mp3 .m4a .aac .wav .flac .ogg +24 more.

Extract Audio from Video

external engineFFmpegFFprobeprogress

Save the soundtrack of videos as audio — lossless stream copy or MP3, AAC, WAV, FLAC, Opus or Ogg.

dogubako audio extract-from-video <files…> [options]

Id audio.extract_from_video · MCP audio_extract_from_video · Output: files · Timeout 180 min

Also found by: rip audio, soundtrack, video to mp3, mp4 to mp3, demux, audio track

Option	CLI	Type	Default	Description
input (required)	positional	files		Videos. Accepts video/*, .mkv .mp4 .mov .webm .avi .m4v +10 more.
format	--format	choice	mp3	One of: copy (Original (no re-encode)), mp3, m4a (AAC (M4A)), wav, flac, opus, ogg (Ogg Vorbis).
bitrate	--bitrate	integer 32–320	192	Bitrate (kbit/s). Only used when format is one of mp3, m4a, opus.
track	--track	integer 0–64	0	Audio track number (0 = first). Advanced.