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How to make a slowed + reverb video on iPhone

Import the clip into Videcho, open Audio FX, scroll to the Speed section and tap Slowed + Reverb. Videcho plays the clip at 0.80x with a large hall on top. The pitch drops with the speed, like a record played slower, and the picture slows with the sound. Sped up does the opposite at 1.25x.

Videcho's Audio FX tab on an iPhone with the three EQ bands and the Speed section with Slowed + Reverb, Sped up and the Speed slider at 1.00x
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Videcho is on the App Store for iPhone and iPad. The guide names every button as the app shows it.

You need Videcho on an iPhone or iPad with iOS 26 or later, and a video in your photo library or in Files. The video needs a sound track.

Steps

  1. Import the video

    Open Videcho and tap Choose from Library. Pick Photo Library or Files, then choose the clip. Once a clip is open, the + button at the top left of the Preview tab loads a different one.

  2. Open the Speed section

    Tap Audio FX and scroll to the bottom. Speed is the last section. It says that the pitch follows the speed, like a record.

    The Speed section in Videcho: the chips Slowed + Reverb and Sped up and the Speed slider at 1.00x

  3. Tap Slowed + Reverb

    Slowed + Reverb sets the speed to 0.80x and the reverb to Large hall. The button stays selected while both are in place, and a second tap takes both out again.

  4. Or tap Sped up

    Sped up sets the speed to 1.25x and changes nothing else. The pitch rises with the speed. A second tap sets the speed back to 1.00x.

  5. Set any speed

    Drag the Speed slider anywhere from 0.50x to 1.50x. It snaps to 1.00x, and the value reads like "0.80x". There is no option to keep the pitch: the sound slows down the way a record does.

  6. Change the reverb or the tone

    A chip only sets values. Afterwards you can move Reverb, add echo or open Tone (EQ) as usual. The reverb guide covers the controls.

  7. Export

    Tap the Export button on the Preview tab. The picture is retimed with the sound, so they stay in sync, and the new video is as long as the original divided by the speed.

Questions

  • What is slowed + reverb?

    A song or clip played slower, so its pitch drops like a record at a lower speed, with a big reverb on it. Sped up is the opposite: faster and higher.

  • Can I slow down the sound without changing the pitch?

    Not in Videcho. The pitch always follows the speed.

  • Does the picture slow down too?

    Yes. Videcho retimes the picture with the sound, so a slowed clip is longer and stays in sync.

  • Can I slow down only part of the clip?

    Yes. Speed takes keyframes like the other sliders. Play to the point where the slow part should begin, tap the diamond button next to the waveform and move Speed or tap a chip. The new speed applies from that keyframe on.

  • Do keyframes still work at another speed?

    Yes. Keyframes stay where they were set in the original clip, so an effect lands on the same moment of the clip at any speed.

  • Can I use a song from my music library?

    Videcho works on videos. Import a video that carries the song, or a video you made with it.

Try it

Videcho makes a slowed + reverb or sped up video on iPhone and iPad in one tap, and adds reverb, echo and EQ to its sound. It has no subscription and no account.

Download on theApp Store

More guides

Written for Videcho 2.1.0. Button names are the ones the app shows.