SFTranscriptionSegmentMBS.confidence as Double

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	SpeechRecognition	MBS MacFrameworks Plugin	19.4	✅ Yes	❌ No	❌ No	✅ Yes	All

The level of confidence the speech recognizer has in its recognition of the speech transcribed for the segment.

This property reflects the overall confidence in the recognition of the entire phrase. The value is 0 if there was no recognition, and it is closer to 1 when there is a high certainty that a transcription matches the user's speech exactly. For example, a confidence value of 0.94 represents a very high confidence level, and is more likely to be correct than a transcription with a confidence value of 0.72.
(Read only property)

SFTranscriptionSegmentMBS.duration as Double

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	SpeechRecognition	MBS MacFrameworks Plugin	19.4	✅ Yes	❌ No	❌ No	✅ Yes	All

The number of seconds it took for the user to speak the utterance represented by the segment.

(Read only property)

SFTranscriptionSegmentMBS.Handle as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	SpeechRecognition	MBS MacFrameworks Plugin	19.4	✅ Yes	❌ No	❌ No	✅ Yes	All

Internal object reference.

(Read and Write property)

SFTranscriptionSegmentMBS.substring as String

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	SpeechRecognition	MBS MacFrameworks Plugin	19.4	✅ Yes	❌ No	❌ No	✅ Yes	All

The string representation of the utterance in the transcription segment.

(Read only property)

SFTranscriptionSegmentMBS.substringRange as NSRangeMBS

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	SpeechRecognition	MBS MacFrameworks Plugin	19.4	✅ Yes	❌ No	❌ No	✅ Yes	All

The range information for the transcription segment’s substring, relative to the overall transcription.

Use the range information to find the position of the segment within the formattedString property of the SFTranscription object containing this segment.
(Read only property)

Some examples using this property:

• /MacFrameworks/SpeechRecognition Test/SpeechRecognition Test

SFTranscriptionSegmentMBS.timestamp as Double

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	SpeechRecognition	MBS MacFrameworks Plugin	19.4	✅ Yes	❌ No	❌ No	✅ Yes	All

The start time of the segment in the processed audio stream.

The timestamp is the number of seconds between the beginning of the audio content and when the user spoke the word represented by the segment. For example, if the user said the word “time” one second into the transcription “What time is it”, the timestamp would be equal to 1.0.
(Read only property)

SFTranscriptionSegmentMBS.voiceAnalytics as SFVoiceAnalyticsMBS

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	SpeechRecognition	MBS MacFrameworks Plugin	19.4	✅ Yes	❌ No	❌ No	✅ Yes	All

An analysis of the transcription segment’s vocal properties.

(Read only property)

Some examples using this property:

• /MacFrameworks/SpeechRecognition Test/SpeechRecognition Test