使用SDK适用于 Java 2.x 的 Amazon Polly 示例 - Amazon SDK for Java 2.x
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使用SDK适用于 Java 2.x 的 Amazon Polly 示例

以下代码示例向您展示了如何在 Amazon Polly 中使用来执行操作和实现常见场景。 Amazon SDK for Java 2.x

操作是大型程序的代码摘录,必须在上下文中运行。您可以通过操作了解如何调用单个服务函数,还可以通过函数相关场景的上下文查看操作。

场景是向您展示如何通过在一个服务中调用多个函数或与其他 Amazon Web Services 服务结合来完成特定任务的代码示例。

每个示例都包含一个指向完整源代码的链接,您可以在其中找到有关如何在上下文中设置和运行代码的说明。

操作

以下代码示例显示了如何使用DescribeVoices

SDK适用于 Java 2.x
注意

还有更多相关信息 GitHub。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.polly.PollyClient; import software.amazon.awssdk.services.polly.model.DescribeVoicesRequest; import software.amazon.awssdk.services.polly.model.DescribeVoicesResponse; import software.amazon.awssdk.services.polly.model.PollyException; import software.amazon.awssdk.services.polly.model.Voice; import java.util.List; /** * Before running this Java V2 code example, set up your development * environment, including your credentials. * * For more information, see the following documentation topic: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class DescribeVoicesSample { public static void main(String args[]) { PollyClient polly = PollyClient.builder() .region(Region.US_WEST_2) .build(); describeVoice(polly); polly.close(); } public static void describeVoice(PollyClient polly) { try { DescribeVoicesRequest voicesRequest = DescribeVoicesRequest.builder() .languageCode("en-US") .build(); DescribeVoicesResponse enUsVoicesResult = polly.describeVoices(voicesRequest); List<Voice> voices = enUsVoicesResult.voices(); for (Voice myVoice : voices) { System.out.println("The ID of the voice is " + myVoice.id()); System.out.println("The gender of the voice is " + myVoice.gender()); } } catch (PollyException e) { System.err.println("Exception caught: " + e); System.exit(1); } } }
  • 有关API详细信息,请参阅 “Amazon SDK for Java 2.x API参考 DescribeVoices” 中的。

以下代码示例显示了如何使用ListLexicons

SDK适用于 Java 2.x
注意

还有更多相关信息 GitHub。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.polly.PollyClient; import software.amazon.awssdk.services.polly.model.ListLexiconsResponse; import software.amazon.awssdk.services.polly.model.ListLexiconsRequest; import software.amazon.awssdk.services.polly.model.LexiconDescription; import software.amazon.awssdk.services.polly.model.PollyException; import java.util.List; /** * Before running this Java V2 code example, set up your development * environment, including your credentials. * * For more information, see the following documentation topic: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class ListLexicons { public static void main(String args[]) { PollyClient polly = PollyClient.builder() .region(Region.US_WEST_2) .build(); listLexicons(polly); polly.close(); } public static void listLexicons(PollyClient client) { try { ListLexiconsRequest listLexiconsRequest = ListLexiconsRequest.builder() .build(); ListLexiconsResponse listLexiconsResult = client.listLexicons(listLexiconsRequest); List<LexiconDescription> lexiconDescription = listLexiconsResult.lexicons(); for (LexiconDescription lexDescription : lexiconDescription) { System.out.println("The name of the Lexicon is " + lexDescription.name()); } } catch (PollyException e) { System.err.println("Exception caught: " + e); System.exit(1); } } }
  • 有关API详细信息,请参阅 “Amazon SDK for Java 2.x API参考 ListLexicons” 中的。

以下代码示例显示了如何使用SynthesizeSpeech

SDK适用于 Java 2.x
注意

还有更多相关信息 GitHub。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

import javazoom.jl.decoder.JavaLayerException; import software.amazon.awssdk.core.ResponseInputStream; import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.polly.PollyClient; import software.amazon.awssdk.services.polly.model.DescribeVoicesRequest; import software.amazon.awssdk.services.polly.model.Voice; import software.amazon.awssdk.services.polly.model.DescribeVoicesResponse; import software.amazon.awssdk.services.polly.model.OutputFormat; import software.amazon.awssdk.services.polly.model.PollyException; import software.amazon.awssdk.services.polly.model.SynthesizeSpeechRequest; import software.amazon.awssdk.services.polly.model.SynthesizeSpeechResponse; import java.io.IOException; import java.io.InputStream; import javazoom.jl.player.advanced.AdvancedPlayer; import javazoom.jl.player.advanced.PlaybackEvent; import javazoom.jl.player.advanced.PlaybackListener; /** * Before running this Java V2 code example, set up your development * environment, including your credentials. * * For more information, see the following documentation topic: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class PollyDemo { private static final String SAMPLE = "Congratulations. You have successfully built this working demo " + " of Amazon Polly in Java Version 2. Have fun building voice enabled apps with Amazon Polly (that's me!), and always " + " look at the AWS website for tips and tricks on using Amazon Polly and other great services from AWS"; public static void main(String args[]) { PollyClient polly = PollyClient.builder() .region(Region.US_WEST_2) .build(); talkPolly(polly); polly.close(); } public static void talkPolly(PollyClient polly) { try { DescribeVoicesRequest describeVoiceRequest = DescribeVoicesRequest.builder() .engine("standard") .build(); DescribeVoicesResponse describeVoicesResult = polly.describeVoices(describeVoiceRequest); Voice voice = describeVoicesResult.voices().stream() .filter(v -> v.name().equals("Joanna")) .findFirst() .orElseThrow(() -> new RuntimeException("Voice not found")); InputStream stream = synthesize(polly, SAMPLE, voice, OutputFormat.MP3); AdvancedPlayer player = new AdvancedPlayer(stream, javazoom.jl.player.FactoryRegistry.systemRegistry().createAudioDevice()); player.setPlayBackListener(new PlaybackListener() { public void playbackStarted(PlaybackEvent evt) { System.out.println("Playback started"); System.out.println(SAMPLE); } public void playbackFinished(PlaybackEvent evt) { System.out.println("Playback finished"); } }); // play it! player.play(); } catch (PollyException | JavaLayerException | IOException e) { System.err.println(e.getMessage()); System.exit(1); } } public static InputStream synthesize(PollyClient polly, String text, Voice voice, OutputFormat format) throws IOException { SynthesizeSpeechRequest synthReq = SynthesizeSpeechRequest.builder() .text(text) .voiceId(voice.id()) .outputFormat(format) .build(); ResponseInputStream<SynthesizeSpeechResponse> synthRes = polly.synthesizeSpeech(synthReq); return synthRes; } }
  • 有关API详细信息,请参阅 “Amazon SDK for Java 2.x API参考 SynthesizeSpeech” 中的。

场景

以下代码示例说明如何创建应用程序来分析客户意见卡、翻译其母语、确定其情绪并根据译后的文本生成音频文件。

SDK适用于 Java 2.x

此示例应用程序可分析并存储客户反馈卡。具体来说,它满足了纽约市一家虚构酒店的需求。酒店以实体意见卡的形式收集来自不同语种的客人的反馈。该反馈通过 Web 客户端上传到应用程序中。意见卡图片上传后,将执行以下步骤:

  • 使用 Amazon Textract 从图片中提取文本。

  • Amazon Comprehend 确定所提取文本的情绪及其语言。

  • 使用 Amazon Translate 将所提取文本翻译为英语。

  • Amazon Polly 根据所提取文本合成音频文件。

完整的应用程序可使用  Amazon CDK 进行部署。有关源代码和部署说明,请参阅中的项目 GitHub

本示例中使用的服务
  • Amazon Comprehend

  • Lambda

  • Amazon Polly

  • Amazon Textract

  • Amazon Translate