---
title: "start(inputSequence:)"
framework: speech
role: symbol
role_heading: Instance Method
path: "speech/speechanalyzer/start(inputsequence:)"
---

# start(inputSequence:)

Starts analysis of an input sequence and returns immediately.

## Declaration

```swift
final func start<InputSequence>(inputSequence: InputSequence) async throws where InputSequence : Sendable, InputSequence : AsyncSequence, InputSequence.Element == AnalyzerInput
```

## Parameters

- `inputSequence`: A new input sequence.

## Discussion

Discussion This method stops the autonomous analysis of the previous input sequence. Any audio that hasn’t been consumed will be ignored but audio that has been consumed will continue to be analyzed. To ensure the previous sequence’s input is fully consumed, call finalize(through:) first. The previous input sequence may be rendered inoperable depending on its implementation.

## See Also

### Performing autonomous analysis

- [start(inputAudioFile:finishAfterFile:)](speech/speechanalyzer/start(inputaudiofile:finishafterfile:).md)