# Cast docs

> Cast is a podcast finisher: it transcribes your recording so you can cut the audio by editing the text, cleans up filler words, pauses and noise, generates the intro, outro and background music the episode needs — with a commercial licence — and exports one finished file at the loudness your platform expects.

## Getting started

- [What is Cast?](https://mubert.com/tools/cast/docs/what-is-mucast): Cast is a podcast finisher. Recording is the easy half — finishing is where episodes get stuck, so Cast handles the last mile: it transcribes what you recorded, lets you cut the audio by editing the text, cleans up the fillers and dead air, scores the episode with music that carries a commercial licence, and exports one finished file at the loudness your platform expects.
- [Where do I start?](https://mubert.com/tools/cast/docs/where-to-start): On the Home screen. It walks you through your first episode in five steps — add audio, clean it up, edit by text, add music that ducks, export — and the New project button asks how you want to begin. You do not need to know the product to make the first episode; the product tells you.
- [How do I get my audio into Cast?](https://mubert.com/tools/cast/docs/import-audio): Upload a file or record straight in the browser — files up to 1 GB each on paid plans, 200 MB on Free. Either way transcription starts automatically as soon as the audio lands, so you can begin editing by text without asking for anything.
- [Which languages can Cast transcribe?](https://mubert.com/tools/cast/docs/transcription-languages): Cast auto-detects the language by default, and you can pin one of 15: English, Russian, Spanish, French, German, Italian, Portuguese, Japanese, Chinese, Korean, Arabic, Dutch, Polish, Turkish or Ukrainian.
- [Is my work saved automatically?](https://mubert.com/tools/cast/docs/does-cast-save): Yes. There is no Save button because there is nothing to press: every edit is saved to your account as you make it, survives a reload, and is there when you sign in from another computer.
- [How does version history work?](https://mubert.com/tools/cast/docs/version-history): Cast checkpoints your whole project automatically — while you edit, and right before the risky moments: an export, Enhance voice, a re-transcribe, a bulk cleanup. Open the history from the clock icon in the top bar → "Version history…" and restore any checkpoint.
- [Which editor do I use — Voice or Main?](https://mubert.com/tools/cast/docs/which-editor): Use the Voice Editor for anything about what was said: filler words, pauses, wording, speakers, chapters. Use the Main Editor for anything about how the episode sounds: music, sound effects, ducking, effects, export.

## Editing the transcript

- [How do I edit the transcript — what can I actually do?](https://mubert.com/tools/cast/docs/edit-transcript): Select any run of words in the Voice Editor and a menu appears. You can delete them (the audio is cut and the gap closes), ignore them (the audio is muted, the timing stays), correct the wording, mark a chapter, assign a speaker, or copy and paste words elsewhere.
- [How do I remove filler words?](https://mubert.com/tools/cast/docs/remove-filler-words): The Voice Editor finds them for you and lists them. Hesitations — "um", "uh", "mm" — are flagged by default and you can cut them all in one click. Discourse markers like "like" and "so" are detected too, but stay off until you switch them on word by word.
- [Why isn’t every "like" flagged as a filler?](https://mubert.com/tools/cast/docs/fillers-not-all-flagged): Because "like" is off until you switch it on. Hesitations — "um", "uh", "mm" — are flagged everywhere by default; real words that double as filler, like "like", "so" and "you know", wait in the dictionary until you enable them. One click there flags every instance in the transcript.
- [What exactly does Cut all cut — and can I cut just some of them?](https://mubert.com/tools/cast/docs/cut-all-fillers): Cut all cuts what the list is currently showing — so the filter chips are your scalpel. Narrow the list to Hesitations only, or to one speaker, and the button follows: "Cut all (21)" means those 21. Every cut is snapped to a quiet point, the lot lands as one undo step, and a checkpoint is saved first.
- [How do I remove pauses and silences?](https://mubert.com/tools/cast/docs/remove-pauses): Cast lists every silence and marks it in the transcript. You set the threshold — show me pauses longer than X seconds, 0.5s by default — and then cut or shorten them, one by one or all at once.
- [Can I remove mouth clicks and lip smacks?](https://mubert.com/tools/cast/docs/mouth-clicks): Yes. Mouth sounds between words are detected acoustically and flagged by default. Because the detection listens to the sound rather than matching a word list, it works in any language.
- [How do I fix a word the transcription got wrong?](https://mubert.com/tools/cast/docs/correct-transcript): Select the word and choose Correct, then type what it should say. This fixes the transcript, the captions and the exported text — it does not change the recorded audio, which still says what was actually said.
- [What is the difference between Delete and Ignore?](https://mubert.com/tools/cast/docs/delete-vs-ignore): Delete cuts the audio out and closes the gap, so the episode gets shorter. Ignore mutes the audio but leaves the gap, so nothing after it moves. Both are reversible, and both remove the words from captions and exports.
- [Can I undo a cleanup — even long after I made it?](https://mubert.com/tools/cast/docs/undo-cleanup): Yes. Undo and redo work as normal, and separately, every cut and mute is listed under Recent edits with its own Restore. Because Cast never overwrites your recording, you can put back one filler word you removed twenty edits ago without losing anything you did since.
- [How do I separate two speakers in one audio track?](https://mubert.com/tools/cast/docs/separate-speakers): Cast does not auto-detect who is speaking. You label speakers by hand: select the text and assign a speaker (⇧S), or set the speaker for a whole paragraph. Speakers are saved to your library and reusable across projects, and each one can have its own filler-word dictionary.
- [Can I listen faster without the chipmunk voice?](https://mubert.com/tools/cast/docs/playback-speed): Yes. The speed control in the transport runs from 0.5× to 2× and preserves the pitch, so a 2× pass through an episode still sounds like a person — which is how you proof an hour of audio in half an hour.
- [How do I add chapters with timestamps?](https://mubert.com/tools/cast/docs/chapters): Select the text where a chapter should start and mark it (⌘⇧M) — the title comes from your selection. Chapters export as timestamp lists for YouTube and for Podcasting 2.0.

## Bleeping & censoring

- [Bleep swearing and sensitive words — the whole episode, one pass](https://mubert.com/tools/cast/docs/censor-swearing): The Voice Editor scans your transcript against a profanity dictionary in the episode’s language and lists every hit. Censor them all in one click or one at a time, and pick the mask — a beep, a noise, or silence. The word is masked in the transcript and the captions too, so a clean version is clean everywhere.
- [Does bleeping change my episode’s length?](https://mubert.com/tools/cast/docs/censor-vs-delete-length): No. A bleep sits on top of the word — the original is muted for that span and the cover plays over it — so the episode runs exactly as long as before. Deleting a word is the one that shortens the timeline; censoring only covers.
- [Can I undo a bleep or change the cover later?](https://mubert.com/tools/cast/docs/censor-undo-restore): Yes — every bleep is non-destructive. Restore a single word from its popover, or Restore all to clear them at once, and the original audio comes back untouched. You can also swap a beep for noise or silence at any time without redoing the work.
- [Does bleeping make my episode brand-safe or advertiser-approved?](https://mubert.com/tools/cast/docs/censor-brand-safe): Not by itself. Bleeping is a fast, reversible way to produce a clean version — the one a sponsor asks for or the episode you publish without the explicit tag — but marking a show clean or explicit, and whether a platform or advertiser accepts it, is a judgement they make, not something Cast certifies.
- [What languages does the profanity dictionary cover?](https://mubert.com/tools/cast/docs/censor-languages): The built-in Strong-profanity list follows your episode’s detected language, across 25 languages — English, Spanish, French, German, Portuguese, Italian, Dutch, Russian, Polish, Japanese, Korean, Chinese, Arabic, Hindi and more. Anything it doesn’t catch — or a language it doesn’t cover — you add to My words.

## Improving the sound

- [How do I remove background noise?](https://mubert.com/tools/cast/docs/remove-background-noise): Turn on the AI Noise Remover. It strips hiss, hum and room noise from the voice while leaving music and sound effects alone, and it has four settings — Off, Subtle, Medium, Strong — so you can control how hard it works.
- [How do I make my voice sound more "studio"?](https://mubert.com/tools/cast/docs/speech-enhancer): Turn on Enhance voice. It separates your voice from the background, removes the noise and brings it to a consistent studio loudness — at Subtle, Medium or Strong. Budget roughly two minutes of processing per ten minutes of audio.
- [The AI cleanup made my voice sound robotic — how do I fix it?](https://mubert.com/tools/cast/docs/sounds-robotic): Lower the strength. Robotic, hollow or underwater artifacts are the signature of noise reduction working too hard — drop from Strong to Medium or Subtle and the voice comes back. Nothing is lost by doing this: your original recording is untouched and the setting is reversible.
- [Can I remove echo or room reverb from a recording?](https://mubert.com/tools/cast/docs/remove-echo): Not as a dedicated control — Cast has no de-reverb. Noise removal targets steady noise (hiss, hum, room tone), and it will not pull the echo out of a recording made in a bare, reflective room.
- [Can I change the character of a voice?](https://mubert.com/tools/cast/docs/voice-presets): Yes. Studio Sound presets on the voice lane give it a character in one click — Natural, Radio, Intimate or Interview — and apply to every clip on that lane, including recordings you add later.
- [Can I use EQ and compression?](https://mubert.com/tools/cast/docs/audio-effects): Yes — an equaliser, compressor, reverb and de-esser can be added per lane, under the Advanced disclosure in the lane inspector. A clip carries only Enhance voice: the rack lives on the lane.

## Music and sound effects

- [How do I add my own music?](https://mubert.com/tools/cast/docs/add-own-music): Upload it on the Upload page, tagging it as Music, and it lands in your Library. From there you can put it on a music lane in the Main Editor — either by picking it from the Library, or by using Replace on an existing music clip.
- [How do I generate music for my episode?](https://mubert.com/tools/cast/docs/generate-music): Describe what you want, pick what kind of track it is — a background bed that loops, an intro/outro, or a short sting — and Cast generates an original track for the episode. It is generated for you, not pulled from a catalogue other shows are also using.
- [Can the music be built to fit my episode automatically?](https://mubert.com/tools/cast/docs/match-voice): The length, yes. When you generate a background bed, the Match chip in the Length row sets the track to your episode’s duration, instead of you guessing a length and hoping it fits.
- [Can I get the music as separate stems?](https://mubert.com/tools/cast/docs/music-stems): Yes. A generated track comes apart into its parts, and you can re-roll one of them — the drums, say — without touching the rest. The parts on offer depend on the track: a gentle voiceover bed may have no drums to swap.
- [Is there a library of ready-made music?](https://mubert.com/tools/cast/docs/curated-library): Yes — a curated library of staff picks you can search in plain words, plus playlists to browse by mood and genre, alongside generation.
- [How do I add sound effects?](https://mubert.com/tools/cast/docs/generate-sfx): Describe the sound and Cast generates it — a whoosh, a transition, an ambience. Ask for up to four variants in one run and keep the best.
- [Is the music licensed for commercial use?](https://mubert.com/tools/cast/docs/licensing): Yes — music you generate in Cast comes with a commercial license on Plus and Max, and every export made on those plans carries its own license record. Free music is only free until a platform, a client or a rights holder asks where it came from; here you have the answer on file. (Free and Lite have no commercial license, and music you upload yourself is yours to clear.)

## Mixing

- [Why does the music get quieter when someone talks?](https://mubert.com/tools/cast/docs/auto-ducking): That is auto-ducking. The music drops under the voice and comes back in the gaps, automatically — and because the duck follows your actual voice clips, it stays correct after you cut. Trim a minute of filler and the music re-balances itself. You never draw a volume envelope by hand. You can set how far it drops, or switch it off.
- [How does the timeline work?](https://mubert.com/tools/cast/docs/timeline-clips): The Main Editor is lane-based: voice on one lane, music and sound effects on others. Clips can be dragged, split, trimmed and replaced, and your chapters run along the top.

## Exporting and publishing

- [How do I export my episode as an MP3 or WAV?](https://mubert.com/tools/cast/docs/export-audio): Open Export, pick the platform you are publishing to, and choose MP3 or WAV. Cast renders the mix and normalizes it to that platform's loudness. Exporting costs no credits — on any plan, however many times you do it. What changes with your plan is the quality you can reach, not what you can do.
- [What LUFS should my podcast be?](https://mubert.com/tools/cast/docs/loudness-lufs): Apple Podcasts wants −16 LUFS; Spotify and YouTube want −14 LUFS; broadcast (EBU R128) wants −23 LUFS. Most tools make you type that number in. Cast ships the target with the platform — pick where you are publishing and it normalizes to that, with true peak at −1 dB. (Master is the exception: no normalization, no ceiling — untouched on purpose.)
- [Why can't I download a WAV file?](https://mubert.com/tools/cast/docs/cant-export-wav): There is no watermark on any plan — your episode is your episode, even on Free. What a plan sets is the quality ceiling: Free and Lite export MP3 (128k and 320k), WAV and lossless unlock on Plus, and broadcast-grade output (EBU R128) is on Max.
- [How do I export stems or individual tracks?](https://mubert.com/tools/cast/docs/export-stems): Turn on stems in the export dialog and you get a ZIP of the separate parts of the mix alongside the full episode. Available on Max.
- [Where do my past exports live?](https://mubert.com/tools/cast/docs/where-are-my-exports): On the Exports page. Every export you have made is listed there and can be downloaded again — with its license PDFs bundled in, if it was made on a licensed plan — so losing the downloaded file never means re-rendering the episode.
- [How do I export captions or subtitles?](https://mubert.com/tools/cast/docs/captions-subtitles): Captions come from your edited transcript and download as SRT, VTT or plain text — so the words you cut do not come back in the subtitles.
- [How do I export chapters with timestamps?](https://mubert.com/tools/cast/docs/export-chapters): Chapters export as a timestamp list in two formats: YouTube description chapters, and Podcasting 2.0 chapters for podcast apps. The full transcript can also be exported as JSON.

## Plans and credits

- [What do the plans include?](https://mubert.com/tools/cast/docs/plans-and-limits): Editing is never metered and never watermarked: transcription, filler and pause removal, noise removal, captions and audio export cost zero credits on every plan, including Free. Credits buy generation (music and SFX); the uploads allowance caps how much audio you bring in. Free: 100 credits, 60 min, MP3 128k. Lite: 700, 10 hrs, MP3 320k. Plus: 2,750, 25 hrs, WAV, commercial license. Max: 6,500, unlimited, broadcast (EBU R128), stems.
- [What costs credits?](https://mubert.com/tools/cast/docs/credits-cost): Only generation — music and sound effects. Transcription, every kind of transcript editing, noise removal, captions and exporting are free on every plan. The exact price is shown next to the Generate button before you spend anything.
- [What happens when I run out of credits?](https://mubert.com/tools/cast/docs/out-of-credits): Generation stops; everything else keeps working. You can still edit, transcribe, clean up audio, add captions and export. Credits refresh monthly, or you can upgrade for a bigger allowance.

## Account and limits

- [How do I sign in — and what if I forgot my password?](https://mubert.com/tools/cast/docs/sign-in-password): Sign in with Google, or with your email and a password. Forgot the password? The Forgot password link on the sign-in page emails you a reset link — follow it and set a new one.
- [How do I delete my account?](https://mubert.com/tools/cast/docs/delete-account): In Settings. Deleting the account is permanent: it removes the account and every project in it, and there is no undo and no recovery window — so export anything you want to keep first.
- [How do I cancel or change my plan?](https://mubert.com/tools/cast/docs/cancel-subscription): Both happen in the billing portal, which you reach from Settings. Cancelling takes effect at the end of the period you have already paid for — you keep your plan until then.
- [Can I pause a recording in progress?](https://mubert.com/tools/cast/docs/can-i-pause-recording): Record in takes. A take runs start-to-stop — there is no pause and resume — and each one lands as its own clip you can reorder, trim and restore independently on the timeline.
- [Can Cast publish my podcast to Spotify or Apple?](https://mubert.com/tools/cast/docs/publish-podcast): Cast finishes the episode; your host distributes it. Cast is deliberately host-agnostic — no RSS, no lock-in — and the file it hands you is already normalized to the target platform's loudness, so it drops into any podcast host without a re-master.
- [I hit a limit — what now?](https://mubert.com/tools/cast/docs/limit-reached): Nothing you already made is ever taken away, hidden or deleted because you crossed a limit — not even if you move down to a smaller plan. Limits apply only when you create something new: at your project limit (Free holds five projects), delete a finished project or move up a plan; at your monthly upload allowance, it resets with your next billing month.
- [Where do I find the keyboard shortcuts?](https://mubert.com/tools/cast/docs/keyboard-shortcuts): Press ? in either editor and the shortcut sheet opens, showing the keys for the editor you are actually in — they differ between the Voice Editor and the Main Editor.
- [Can I bring my own transcript?](https://mubert.com/tools/cast/docs/import-transcript): No. Cast transcribes the audio itself, and the transcript has to be its own — every word is tied to a moment in the recording, which is what lets you edit the audio by editing the text.

## Troubleshooting

- [The music is too loud under my voice — what do I fix?](https://mubert.com/tools/cast/docs/music-too-loud): Lower the music lane's level and deepen the ducking. Do not reach for the master: ducking controls how far the music drops while someone is speaking, while the master sets the level of the whole episode, so lowering it just makes everything quieter together.
- [Audio in an old project will not play](https://mubert.com/tools/cast/docs/audio-wont-play): Reload the page. Audio links expire after a while for security, and reloading fetches fresh ones — nothing has been lost.
- [My audio was not transcribed](https://mubert.com/tools/cast/docs/no-transcript): Transcription starts on its own once an upload completes, so no transcript usually means the upload did not finish. Check the file is a supported audio format — MP3, WAV, M4A, AAC, OGG or FLAC — and upload it again.
- [My file will not upload](https://mubert.com/tools/cast/docs/file-wont-upload): Four usual causes, each with its own message: the file is over your plan’s per-file limit (200 MB and 60 minutes on Free, 1 GB and 2 hours on paid), it is a WAV or FLAC on the Free plan (lossless uploads are paid), the format is not a supported audio format (video is rejected), or you have used up your monthly upload allowance, which resets with your billing month.
- [The recorder cannot see my microphone](https://mubert.com/tools/cast/docs/mic-not-detected): That is the browser withholding permission, not Cast. Click the padlock or settings icon next to the address bar, allow the microphone for this site, and reload — the device picker on the Record page then lists everything the browser can see.
- [My export failed or is stuck](https://mubert.com/tools/cast/docs/export-stuck): Start it again — exports are re-runnable and a failed one costs you nothing. Long episodes genuinely take a while to render, so a slow export is not necessarily a stuck one.
- [I broke my project — how do I get an earlier version back?](https://mubert.com/tools/cast/docs/restore-version): Open the clock icon in the top bar → "Version history…", pick the checkpoint from before things went wrong, and press Restore. Restoring never deletes anything — the state you are leaving is checkpointed too, so you can always come back forward.

## How Cast compares

- [Cast vs Descript](https://mubert.com/tools/cast/docs/mucast-vs-descript): Both let you edit audio by editing a transcript. Descript is a broad all-in-one that also does video and screen recording, and it has automatic speaker detection. Cast is a finisher, not an all-in-one: audio only, no video timeline, no stock-music rabbit hole. Descript gives you a library to search and a fader to ride; Cast generates the track for the episode, hands you the stems, ducks it under the voice on its own, and clears it for commercial use.
- [Cast vs Riverside](https://mubert.com/tools/cast/docs/mucast-vs-riverside): Riverside is a remote recording studio first — it records each guest locally at high quality and then gives you an editor. Cast starts where recording ends. They are not substitutes: Riverside sells you a studio, Cast hands you a finished episode. If you record interviews over the internet, use both — Riverside to capture, Cast to finish.
- [Cast vs Adobe Podcast Enhance](https://mubert.com/tools/cast/docs/mucast-vs-adobe-podcast): Adobe Podcast Enhance is a single-purpose cleanup tool: you give it a file, it gives you a cleaner-sounding file. Cast does the same cleanup with two things a one-shot tool cannot give you — a strength dial, and an original that was never overwritten.
- [Cast vs a stock music library](https://mubert.com/tools/cast/docs/cast-vs-stock-music): A stock library (Epidemic Sound, Artlist, Uppbeat and the rest) sells you a subscription to a catalogue: you search it, audition tracks, find one that nearly fits, and trim it to length. Cast generates the track for this episode instead — sized to your voice, delivered in stems, ducking itself under the speech, and on Plus and Max carrying a commercial license.

## Glossary

- [What is LUFS?](https://mubert.com/tools/cast/docs/what-is-lufs): LUFS (Loudness Units Full Scale) measures how loud something actually sounds to a person, averaged over time — unlike peak level, which only measures the single loudest instant. Podcast platforms use it as their delivery target: Apple Podcasts wants −16 LUFS, Spotify and YouTube −14 LUFS.
- [What is true peak, and why −1 dB?](https://mubert.com/tools/cast/docs/what-is-true-peak): True peak is the highest level your audio will actually reach once it is converted back to sound — including peaks that appear between the digital samples. Leaving 1 dB of headroom (a −1 dBTP ceiling) stops those hidden peaks from distorting when a platform re-encodes your file to MP3 or AAC.
- [What does normalizing audio mean?](https://mubert.com/tools/cast/docs/what-is-normalization): Normalizing means adjusting the whole recording up or down so it lands on a target level. It changes loudness, not balance — it will not fix a quiet guest against a loud host, because it moves everything by the same amount.
- [What is ducking (or sidechain)?](https://mubert.com/tools/cast/docs/what-is-ducking): Ducking is automatically lowering the music whenever someone speaks, and letting it come back up when they stop. It is what makes a music bed sit under a voice instead of fighting it — and doing it by hand means drawing a volume curve around every sentence.
- [What are stems?](https://mubert.com/tools/cast/docs/what-are-stems): Stems are the separate parts of a finished mix, kept as individual files — the voice on one, the drums on another, the bass on another. A stereo mix is those parts already blended together and no longer separable.
- [What does non-destructive editing mean?](https://mubert.com/tools/cast/docs/what-is-non-destructive): It means your edits are stored as instructions layered over the original recording, which is never overwritten. The practical consequence: any cut can be undone at any time, including one you made weeks ago, and including after you have exported.
- [What is speaker diarization?](https://mubert.com/tools/cast/docs/what-is-diarization): Diarization is a machine working out who is speaking when, from the audio alone, and splitting the transcript by speaker automatically. Cast does not do this — you label speakers yourself, which takes a few clicks and never guesses wrong.
- [What is the difference between MP3 and WAV?](https://mubert.com/tools/cast/docs/mp3-vs-wav): WAV is the full, uncompressed audio — big files, nothing thrown away. MP3 is compressed by discarding detail people are unlikely to hear — much smaller files, and what you actually publish. A higher bitrate (320k versus 128k) means less was discarded.

## The Mubert ecosystem

- [Cast, Fuse or Render — which one do I want?](https://mubert.com/tools/cast/docs/which-mubert-tool): Pick by what you are walking away with. A finished podcast episode → Cast. A short-form video with sound → Fuse. A music track on its own → Render. Music generated inside your own product → the Mubert API. They share one generative engine, so the music is the same quality wherever you meet it; what differs is the room you sit in to use it.
- [What is the Mubert API?](https://mubert.com/tools/cast/docs/mubert-api): The Mubert API is Mubert's generative-music API for developers: you call it with a description or a mood and it returns original, license-cleared music — for apps, games, streams, or any product that needs an endless supply of music it is allowed to use.
- [What is Fuse by Mubert?](https://mubert.com/tools/cast/docs/fuse): Fuse is Mubert's AI editor for video: it scores short-form video with generated music and sound effects, ducks the audio under speech, and adds styled subtitles. Fuse and Cast share an engine and split by deliverable — Fuse makes short-form video, Cast finishes long-form episodes.
- [What is Mubert Render?](https://mubert.com/tools/cast/docs/render): Render is where you generate music on its own — no episode, no video, no timeline. You describe what you want, it produces original licensed tracks you can download and use.

## Marketing pages

- [A commercial license for your podcast music](https://mubert.com/tools/cast/features/commercial-license): Generate the music inside Cast and publish with a commercial license on Plus and Max — every export ships with a license record you can point at.
- [Edit the audio by editing the words](https://mubert.com/tools/cast/features/transcript-editing): Cast transcribes your episode so you can cut the audio by editing the text: delete a sentence and the recording is cut, the gap closes, and captions stay in sync.
- [Cut every “um” without chopping a word](https://mubert.com/tools/cast/features/filler-word-removal): Cast finds every “um”, “uh” and “mm”, and cuts them all in one click — each cut snapped to a quiet point in the waveform, so the edit never chops a word.
- [Dead air, listed in seconds — not a 0–100 slider](https://mubert.com/tools/cast/features/remove-silence): Cast lists every pause longer than a threshold you set in seconds — 0.5s by default — and cuts or shortens them one by one or all at once. No abstract sensitivity slider.
- [Studio sound, with a strength dial](https://mubert.com/tools/cast/features/voice-cleanup): Noise removal and a speech enhancer with a strength dial — Subtle, Medium, Strong — over an original that is never overwritten. Robotic? Move the dial left.
- [Music made for this episode, not found for it](https://mubert.com/tools/cast/features/podcast-music): Cast generates an original intro, outro or background bed for this episode — sized to your voice track, in parts, ducking under the speech on its own.
- [Ducking that stays correct after you cut](https://mubert.com/tools/cast/features/auto-duck-podcast): The music drops under the voice and returns in the gaps, automatically — and because the duck follows your voice clips, it stays correct after every cut.
- [Chapters that survive your edits](https://mubert.com/tools/cast/features/podcast-chapters): Chapters pin to words, not clock time — cut two minutes of filler and every timestamp is still right. Exports as YouTube and Podcasting 2.0 lists.
- [Nobody should have to type −16 LUFS](https://mubert.com/tools/cast/features/loudness-presets): Apple wants −16 LUFS, Spotify and YouTube −14. Cast ships the target with the platform: pick where you are publishing and the export lands there, true peak at −1 dB.
- [Leave with stems, not a lock-in](https://mubert.com/tools/cast/features/podcast-stems): Switch on stems and the export ZIP carries each lane as its own file plus the full mix — so an engineer or a DAW picks up exactly where you left off.
- [Skip the editor bill just to bleep a swear word](https://mubert.com/tools/cast/features/censor-podcast): Bleep swearing and sensitive words across a whole episode in one pass — scanned from the transcript, masked in the audio and the captions alike.
- [Royalty-free music made for your recording, not licensed from a library](https://mubert.com/tools/cast/features/royalty-free-podcast-music): Generate royalty-free music for your voice recordings — podcast beds and intros, lecture transitions, audiobook bumpers — each with a commercial license record.
- [Nobody hears what you said if it sounds amateur](https://mubert.com/tools/cast/features/sound-professional): Bad audio gets a podcast dismissed before anyone hears what it says. Cast fixes the two things that make a recording sound amateur — noise and inconsistent loudness.
- [How to remove filler words from a podcast](https://mubert.com/tools/cast/how-to/remove-filler-words-from-a-podcast): Upload the episode, open Fillers, and cut every “um” in one click — each cut snapped to a quiet point in the waveform so no word gets chopped.
- [How to add intro music to a podcast](https://mubert.com/tools/cast/how-to/add-intro-music-to-a-podcast): Generate an intro made for your episode instead of hunting a catalogue: describe it, pick intro/outro, and drop it on the timeline — it ducks on its own.
- [How to remove background noise from a podcast](https://mubert.com/tools/cast/how-to/remove-background-noise-from-a-podcast): Turn on the AI Noise Remover at Subtle and only go up if you still hear the room. Four strengths, Off included, and the original recording is never overwritten.
- [How to normalize a podcast to −16 LUFS](https://mubert.com/tools/cast/how-to/normalize-a-podcast-to-16-lufs): Pick Apple Podcasts in the export dialog and the −16 LUFS target is applied for you, true peak at −1 dB. No meters, no math — the number ships with the preset.
- [How to add chapters to a podcast](https://mubert.com/tools/cast/how-to/add-chapters-to-a-podcast): Select the sentence where a section starts and mark it — the title comes from your words. Chapters export as YouTube description timestamps and Podcasting 2.0 markers.
- [How to export a podcast for Spotify and Apple](https://mubert.com/tools/cast/how-to/export-a-podcast-for-spotify-and-apple): Pick the platform preset, choose MP3 or WAV, and export — the loudness lands where Spotify (−14 LUFS) or Apple (−16) expects it. No credits, any plan.
- [The whole finishing chain, one pair of hands](https://mubert.com/tools/cast/for/solo-podcasters): Record, clean, score, export — one person, no DAW. Cast finds the fillers and dead air, generates the music, and exports at the loudness your platform expects.
- [Tighten the conversation, keep its rhythm](https://mubert.com/tools/cast/for/interview-podcasts): Tighten a conversation without making it sound jammed together: shorten pauses instead of deleting them, and cut fillers per speaker.
- [Score the story, not just the intro](https://mubert.com/tools/cast/for/narrative-podcasts): Music and transitions as structure: generate a bed per chapter, mark the story beats in the transcript, and let the score duck under the narration on its own.
- [A lecture in, an episode out](https://mubert.com/tools/cast/for/educators): A lecture in, an episode out: cut the throat-clearing by text, shorten the pauses, add chapters students can jump to, and export captions that match the edited audio.
- [The deliverable your client’s legal will ask for](https://mubert.com/tools/cast/for/agencies): For client work the deliverable is proof: every export on Plus and Max carries a license record per generated track — what your client’s legal will ask for.
- [A Descript alternative for shows that ship audio](https://mubert.com/tools/cast/alternatives/descript): Descript is a broad all-in-one with video. Cast is a podcast finisher: audio only, music generated per episode with a license record, nothing overwritten.
- [Riverside records it. Cast finishes it.](https://mubert.com/tools/cast/alternatives/riverside): Riverside is a remote recording studio first; Cast starts where recording ends. They are not substitutes — record the interview in Riverside, finish the episode in Cast.
- [An Adobe Podcast Enhance alternative with a dial](https://mubert.com/tools/cast/alternatives/adobe-podcast): Adobe Enhance is a one-shot cleanup: file in, cleaner file out, take what you get. Cast runs the same cleanup with a strength dial over an untouched original.
- [An Alitu alternative for editors who want the controls](https://mubert.com/tools/cast/alternatives/alitu): Alitu automates the assembly line: upload, auto-clean, publish. Cast gives you the controls — transcript editing, a cleanup dial, music with a license record.
- [An Audacity alternative that edits by text](https://mubert.com/tools/cast/alternatives/audacity): Audacity is free, offline and destructive — you edit waveforms by ear and live with your cuts. Cast edits by text and finishes at platform loudness.

## Notes

- The full docs as one file: https://mubert.com/tools/cast/llms-full.txt