AppleScriptObjC script to classify sounds in sound files using the SoundAnalysis framework.

ClassifySoundFile.scpt

use framework "SoundAnalysis"

set confidenceThreshold to 0.6 -- Level of confidence necessary for classification to appear in result
set theResult to "" -- Sequence of sound classification labels throughout the sound file's duration

-- Analyze sound file for classifiable sounds
on analyzeSound(filePath)
	global theResult
	
	-- Initialize sound analyzer with file
	set theURL to current application's NSURL's fileURLWithPath:filePath
	set theAnalyzer to current application's SNAudioFileAnalyzer's alloc()'s initWithURL:theURL |error|:(missing value)
	
	-- Initial sound classification request and add it to the analyzer
	set theRequest to current application's SNClassifySoundRequest's alloc()'s initWithClassifierIdentifier:(current application's SNClassifierIdentifierVersion1) |error|:(missing value)
	theAnalyzer's addRequest:(theRequest) withObserver:(me) |error|:(missing value)
	
	-- Start the analysis and wait for it to complete
	theAnalyzer's analyze()
	repeat while theResult is ""
		delay 0.1
	end repeat
	return theResult
end analyzeSound

-- Act on classification result
on request:request didProduceResult:|result|
	global confidenceThreshold
	global theResult
	
	-- Add classification labels whose confidence meets the threshold
	repeat with classification in |result|'s classifications()
		if classification's confidence() > confidenceThreshold then
			set theResult to theResult & (classification's identifier() as text) & " "
		end if
	end repeat
end request:didProduceResult:

-- Set the result if an error occurs to avoid infinite loop
on request:request didFailWithError:|error|
	global theResult
	if theResult is "" then
		set theResult to " "
	end if
end request:didFailWithError:

-- Set the result if request completes without classifications being made to avoid infinite loop
on requestDidComplete:request
	global theResult
	if theResult is "" then
		set theResult to " "
	end if
end requestDidComplete:

return analyzeSound("/Users/exampleUser/Documents/sound.wav")