# Downsampler A temporal transformer that down samples the input stream. ``` struct Downsampler where Input : Sendable ``` ## Topics ### Creating a transformer [`init(factor: Int)`](/documentation/CreateMLComponents/Downsampler/init(factor:)) Creates a down sample temporal transformer. ### Getting the sample factor [`let factor: Int`](/documentation/CreateMLComponents/Downsampler/factor) The down sample factor to the input stream. ### Performing the transformation [`func applied(to: S, eventHandler: EventHandler?) throws -> Downsampler.DownStreamSequence`](/documentation/CreateMLComponents/Downsampler/applied(to:eventHandler:)) Down samples the input sequence [`struct DownStreamSequence`](/documentation/CreateMLComponents/Downsampler/DownStreamSequence) An async sequence of down stream elements. ## Relationships ### Conforms To [`Encodable`](/documentation/Swift/Encodable) [`Sendable`](/documentation/Swift/Sendable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Decodable`](/documentation/Swift/Decodable) [`TemporalTransformer`](/documentation/CreateMLComponents/TemporalTransformer) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)