Come rallentare un file audio?

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To slow down audio on your iPhone, follow these steps:

  1. Select the menu bar and click on "Effects" > "Change Speed". This will open a panel with a slider.
  2. Move the slider to the left or right to see the percentage of speed change.
  3. Move the slider to the left to decrease the percentage.

The best application to slow down audio on iPhone is AudioStretch, developed by Cognosonic Pte. It is available in both Lite and Full versions and is a great tool for language learning.

Other options for slowing down audio on iPhone include:

  • Anytune
  • SlowMo (Speed Slow Motion)
  • Audipo (Audio Speed Changer)
  • Audio Speed Changer Lite
  • Music Speed Changer
  • Reduce Music Player Speed
  • TempoPitch

To slow down an audio file using Audacity, follow these steps:

  1. Open Audacity and select "Open" from the File menu.
  2. Choose the MP3 file you want to slow down.
  3. Select "Change Speed" and/or "Change Tempo/Pitch" from the Effects menu.
  4. A new window will open to control the percentage of speed change.

To slow down vocals in Audacity:

  1. Access the conversation and press the button to resume the voice note.
  2. Click on the profile picture of the contact.
  3. A speed selector will appear on the right side of the player.
  4. Select your preferred speed, keeping in mind the percentage of change.

To change the speed of audio on WhatsApp:

  1. Press the numbers on the right side and choose between 1, 1.5, or 2.
  2. The audio speed will change according to your selection.

To control the reading speed on your iPhone:

  1. Go to Settings and navigate to Accessibility.
  2. Click on "Spoken Content" and enable it.
  3. To adjust the speed, use the voice speed slider.

If you don’t want to spend any money to speed up your audio files, you can use two free programs:

  • Windows Media Player: Use it to accelerate audio files.
  • Apowersoft Free Audio Recorder Online: Use it to record your output.

To change the BPM of audio:

  1. Select the audio from the timeline to modify the BPM.
  2. You can choose the entire track or just a part of it.
  3. Access the Effects menu and click on "Change Tempo".

To slow down audio in Windows Media Player:

  1. Start playing a song.
  2. Right-click on the main area of the screen and choose "Enhancements" > "Playback Speed Settings".

To speed up recording using Windows Sound Recorder:

  1. Open Windows Sound Recorder.
  2. Click on "Open" and choose the audio file.
  3. Adjust the audio speed using the "Effects" menu.

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