---
title: outputToFileURL
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nsspeechsynthesizer/speechpropertykey/outputtofileurl
---

# outputToFileURL

Set the speech output destination to a file or to the computer’s speakers.

## Declaration

```swift
static let outputToFileURL: NSSpeechSynthesizer.SpeechPropertyKey
```

## Discussion

Discussion An NSURL object. To write the speech output to a file, use the file’s NSURL; to generate the sound through the computer’s speakers, use nil. This property works with setObject(_:forProperty:).

## See Also

### Speech Property Keys

- [status](appkit/nsspeechsynthesizer/speechpropertykey/status.md)
- [errors](appkit/nsspeechsynthesizer/speechpropertykey/errors.md)
- [inputMode](appkit/nsspeechsynthesizer/speechpropertykey/inputmode.md)
- [characterMode](appkit/nsspeechsynthesizer/speechpropertykey/charactermode.md)
- [numberMode](appkit/nsspeechsynthesizer/speechpropertykey/numbermode.md)
- [rate](appkit/nsspeechsynthesizer/speechpropertykey/rate.md)
- [pitchBase](appkit/nsspeechsynthesizer/speechpropertykey/pitchbase.md)
- [pitchMod](appkit/nsspeechsynthesizer/speechpropertykey/pitchmod.md)
- [volume](appkit/nsspeechsynthesizer/speechpropertykey/volume.md)
- [synthesizerInfo](appkit/nsspeechsynthesizer/speechpropertykey/synthesizerinfo.md)
- [recentSync](appkit/nsspeechsynthesizer/speechpropertykey/recentsync.md)
- [phonemeSymbols](appkit/nsspeechsynthesizer/speechpropertykey/phonemesymbols.md)
- [currentVoice](appkit/nsspeechsynthesizer/speechpropertykey/currentvoice.md)
- [commandDelimiter](appkit/nsspeechsynthesizer/speechpropertykey/commanddelimiter.md)
- [reset](appkit/nsspeechsynthesizer/speechpropertykey/reset.md)