# Turn one long video into a week of reels

> A podcast, a webinar or a YouTube upload is twenty vertical clips you already own. How to find the moments, crop them properly, and cut them to a beat.

Canonical: https://easyreels.io/blog/long-video-into-reels

[Blog](https://easyreels.io/blog) · Workflow

17 September 20265 min read

Pull five to eight self-contained moments of 20–45 seconds each, crop them to 9:16 by reframing on the subject rather than centre-cropping, add burned-in captions because most of it is speech, and cut the b-roll sections to the beat. One hour of source footage reliably produces a week of posts.

Anyone who has recorded a podcast, run a webinar or uploaded to YouTube is sitting on more vertical content than they will make this month. The reason it does not get used is that "repurpose it" is vague, and the actual job has four distinct steps.

## What counts as a usable moment

Not the best bits. A clip has to work for somebody who has no idea what came before it, which rules out most of what felt good live.

- **Self-contained.** It makes sense cold. Anything that needs "as I was saying" is not a clip.
- **One idea.** A single claim, answer or demonstration. Two ideas is two clips.
- **20 to 45 seconds.** Shorter than that rarely has a payoff; longer loses the audience.
- **Opens on something.** A claim, a number, a disagreement. Not a wind-up.
- **Has an end.** A conclusion, not a fade out mid-thought.

Expect five to eight from an hour. People aim for twenty and ship four, because they counted moments they liked rather than moments that stand alone.

## Finding them without rewatching everything

1. **Get the transcript.** Most platforms produce one; otherwise any transcription tool will. Reading is four times faster than scrubbing.
2. **Mark anything that could open a post.** A strong claim, a specific number, a question you answered well, a moment somebody disagreed.
3. **Note the timestamps**, not the text. You are building a list of in and out points.
4. **Watch only those sections.** Half will be worse than they read. That is normal and it is why you over-collect.
5. **Write the hook line while you are there**, because you have the context now and will not in a week: [reel hooks](https://easyreels.io/blog/reel-hooks-first-three-seconds).

## Cropping 16:9 to 9:16

The step most people do badly, because the default is a centre crop and the subject is rarely centred.

| Source | Do | Avoid |
|---|---|---|
| One person, off-centre | Reframe onto them, full height | Centre crop with an empty half |
| Two people talking | Cut between two crops, on the speaker | Both tiny, side by side |
| Screen share | Punch into the part being discussed | The whole screen, unreadable |
| Slides | Rebuild as a text overlay | A wide slide letterboxed |
| Wide b-roll | Use it as a slow push across | Squeezing it to fit |

The two-people case is worth the extra effort: alternating between two tight crops as the speaker changes reads as an edit rather than a crop, and it gives the cut a rhythm it otherwise lacks. Keep the subject clear of the interface zones either way: [vertical video size and the safe area](https://easyreels.io/blog/vertical-video-dimensions).

## Captions are not optional here

A repurposed clip is mostly speech, and most people watch on mute. Burn the captions in rather than relying on the platform's own track, so they render identically everywhere and cannot be switched off.

Three or four words a line, heavy weight, middle third of the frame, and large enough to read at arm's length. [Captions on reels](https://easyreels.io/blog/reel-captions-and-subtitles) covers the sizes and the timing; the only thing specific to repurposing is that the transcript you already pulled is the caption script, so the work is done.

## Where the beat comes in

A talking clip should not be cut to a beat: chopping speech on a drum makes it unwatchable. But most long-form footage is not all talking, and the parts that are not are exactly where beat-matching belongs.

| Section | Cut on | Audio |
|---|---|---|
| Someone talking | Sentence boundaries | Their voice, music low underneath |
| B-roll and cutaways | The beat | Music up |
| The opening 2 seconds | The beat, twice | Music, before the voice starts |
| The last frame | Hold it | Music resolves |

The opening row is the useful trick. Two beat-matched cuts of b-roll before the speech starts turns a talking clip into something that reads as edited, and it costs two shots. [How many cuts a reel should have](https://easyreels.io/blog/how-many-cuts-in-a-reel) has the density arithmetic for the b-roll sections.

## One hour, one afternoon, one week of posts

1. Transcript, marked, timestamps listed: 30 minutes.
2. Pull the five to eight sections as separate clips.
3. Reframe each to 9:16 on the subject.
4. Caption from the transcript you already have.
5. Add two beats of b-roll at the front of each, and music underneath.
6. Set a cover per clip: the default frame on a talking head is usually mid-blink: [reel covers](https://easyreels.io/blog/reel-cover-and-thumbnail).
7. Schedule across the week rather than posting them together.

That last step matters more than it looks. Six clips from one recording posted in two days read as one thing spread thin; spread across a fortnight they read as an account with a lot to say.

## Common questions

### How many clips should one hour of footage produce?

Five to eight that are genuinely self-contained. More than ten from an hour usually means some of them need context they do not have.

### Does reposting clips from a YouTube video hurt the original?

No. They are different audiences on different platforms, and a clip that works is the best advert the long version has. Do not upload the clip with the YouTube watermark on it, which is a different problem.

### Should I add music under someone talking?

Yes, quietly, around 12 to 18 dB below the voice. It fills the silence and gives the b-roll sections something to cut against. Use a track you are licensed to publish: [can you use copyrighted music in reels?](https://easyreels.io/blog/music-for-reels-copyright)

### What if the long video has no b-roll at all?

Cut in shots from your own folder. Two or three generic clips at the front of each one do the job, which is one more reason to keep a folder deep enough to reach for: [filming b-roll on a phone](https://easyreels.io/blog/filming-b-roll-on-a-phone).

In [Easy Reels](https://easyreels.io/) the long file goes into the media library and is split into clips there, so the sections become sources a template can pull from. It is the same folder-and-template loop as everything else, and the reason a recording turns into a batch rather than into six manual edits. [Batch-creating reels](https://easyreels.io/blog/batch-create-reels) is that habit in full.

**About this article.** Written by the team that builds Easy Reels, which cuts your clips to the beat of a song and renders a finished vertical reel. Spotted something wrong or out of date? Write to [support@easyreels.io](mailto:support@easyreels.io).

## Stop editing. Start posting.

Easy Reels turns the footage you already have into beat-synced vertical video, automatically, in minutes.

[Start your 7-day free trial](https://app.easyreels.io/signup)

## Read next

- [Turn old footage into new reels, not reposts](https://easyreels.io/blog/repurpose-footage-you-already-have)Most accounts are sitting on months of unused clips. How to audit what you have, and what makes a re-cut read as new rather than as a repost.
- [Captions on reels: how to do them properly](https://easyreels.io/blog/reel-captions-and-subtitles)Most people watch on mute, so captions are the video. Burned in or auto-generated, where to put them, how big, and the karaoke effect that is worth skipping.
- [How to batch-create reels from one folder of footage](https://easyreels.io/blog/batch-create-reels)Posting daily needs a system, not more hours. How to build a month of beat-matched videos from footage you already have, in one sitting.