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We are phasing out Remotion WebCodecs and are moving to Mediabunny!

convertAudioData()v4.0.288

Part of the @remotion/webcodecs package.

💼 Important License Disclaimer
This package is licensed under the Remotion License.
We consider a team of 4 or more people a "company".

For "companies": A Remotion Company license needs to be obtained to use this package.
In a future version of @remotion/webcodecs, this package will also require the purchase of a newly created "WebCodecs Conversion Seat". Get in touch with us if you are planning to use this package.

For individuals and teams up to 3: You can use this package for free.

This is a short, non-binding explanation of our license. See the License itself for more details.

Converts an AudioData object to a new AudioData object with a different sample rate or format, or both.

import {convertAudioData} from '@remotion/webcodecs';

const audioData = new AudioData({
  data: new Int32Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]),
  format: 's32',
  numberOfChannels: 1,
  numberOfFrames: 10,
  sampleRate: 44100,
  timestamp: 0,
});

const newAudioData = convertAudioData({audioData, newSampleRate: 22050});

/*
{
  data: [0, 2, 4, 6, 8],
  format: 's32',
  numberOfChannels: 1,
  numberOfFrames: 5,
  sampleRate: 22050,
  timestamp: 0,
}
*/

Behavior​

  • Rounding may occur.
  • The new sample rate must be between 3000 and 768000.
  • If no conversion is needed (same sample rate and format), the original AudioData is cloned.
  • No cleanup is done on either the input or output AudioData (call close() on them yourself).

API​

Takes an object with the following properties:

audioData​

The AudioData object to convert.

newSampleRate?​

The new sample rate. Must be between 3000 and 768000 (only Chrome enforces this technically, but Remotion will throw an error always).

newFormat?​

The new format.

See also​