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Contoh iOS

Contoh berikut menggunakan iOS SDK untuk Amazon Polly untuk membaca teks yang ditentukan menggunakan suara yang dipilih dari daftar suara.

Kode yang ditampilkan di sini mencakup tugas-tugas utama tetapi tidak menangani kesalahan. Untuk kode lengkapnya, lihat demo AWS Mobile SDK for iOS Amazon Polly.

Inisialisasi

// Region of Amazon Polly.
let AwsRegion = AWSRegionType.usEast1
 
// Cognito pool ID. Pool needs to be unauthenticated pool with
// Amazon Polly permissions.
let CognitoIdentityPoolId = "YourCognitoIdentityPoolId"
 
// Initialize the Amazon Cognito credentials provider.
let credentialProvider = AWSCognitoCredentialsProvider(regionType: AwsRegion, identityPoolId: CognitoIdentityPoolId)

// Create an audio player
var audioPlayer = AVPlayer()

Dapatkan Daftar Suara yang Tersedia

// Use the configuration as default
AWSServiceManager.default().defaultServiceConfiguration = configuration

// Get all the voices (no parameters specified in input) from Amazon Polly
// This creates an async task.
let task = AWSPolly.default().describeVoices(AWSPollyDescribeVoicesInput())
 
// When the request is done, asynchronously do the following block
// (we ignore all the errors, but in a real-world scenario they need
// to be handled)
task.continue(successBlock: { (awsTask: AWSTask) -> Any? in
      // awsTask.result is an instance of AWSPollyDescribeVoicesOutput in
      // case of the "describeVoices" method
      let voices = (awsTask.result! as AWSPollyDescribeVoicesOutput).voices
 
      return nil
})

Sintesis Pidato

// First, Amazon Polly requires an input, which we need to prepare.
// Again, we ignore the errors, however this should be handled in
// real applications. Here we are using the URL Builder Request,
// since in order to make the synthesis quicker we will pass the
// presigned URL to the system audio player.
let input = AWSPollySynthesizeSpeechURLBuilderRequest()

// Text to synthesize
input.text = "Sample text"

// We expect the output in MP3 format
input.outputFormat = AWSPollyOutputFormat.mp3

// Choose the voice ID
input.voiceId = AWSPollyVoiceId.joanna

// Create an task to synthesize speech using the given synthesis input
let builder = AWSPollySynthesizeSpeechURLBuilder.default().getPreSignedURL(input)

// Request the URL for synthesis result
builder.continueOnSuccessWith(block: { (awsTask: AWSTask<NSURL>) -> Any? in
	// The result of getPresignedURL task is NSURL.
	// Again, we ignore the errors in the example.
	let url = awsTask.result!

	// Try playing the data using the system AVAudioPlayer
	self.audioPlayer.replaceCurrentItem(with: AVPlayerItem(url: url as URL))
	self.audioPlayer.play()

	return nil
})