AWS 문서 AWS SDK SDK 예제
기계 번역으로 제공되는 번역입니다. 제공된 번역과 원본 영어의 내용이 상충하는 경우에는 영어 버전이 우선합니다.
Amazon Transcribe를 사용하여 오디오를 녹음하고 작업 데이터를 가져올 수 있습니다. AWS SDK
다음 코드 예제는 다음과 같은 작업을 수행하는 방법을 보여줍니다.
Amazon Transcribe를 통해 트랜스크립션 작업을 시작합니다.
작업이 완료될 때까지 기다립니다.
트랜스크립트가 URI 저장된 위치를 확인하십시오.
자세한 내용은 Amazon Transcribe 시작하기를 참조하십시오.
- Java
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- SDK자바 2.x의 경우
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참고
더 많은 내용이 있습니다. GitHub AWS 코드 예시 리포지토리
에서 전체 예시를 찾고 설정 및 실행하는 방법을 배워보세요. PCM파일을 텍스트로 변환합니다.
/** * To run this AWS code example, ensure that you have set up your development * environment, including your AWS credentials. * * For information, see this documentation topic: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class TranscribeStreamingDemoFile { private static final Region REGION = Region.US_EAST_1; private static TranscribeStreamingAsyncClient client; public static void main(String args[]) throws ExecutionException, InterruptedException { final String USAGE = "\n" + "Usage:\n" + " <file> \n\n" + "Where:\n" + " file - the location of a PCM file to transcribe. In this example, ensure the PCM file is 16 hertz (Hz). \n"; if (args.length != 1) { System.out.println(USAGE); System.exit(1); } String file = args[0]; client = TranscribeStreamingAsyncClient.builder() .region(REGION) .build(); CompletableFuture<Void> result = client.startStreamTranscription(getRequest(16_000), new AudioStreamPublisher(getStreamFromFile(file)), getResponseHandler()); result.get(); client.close(); } private static InputStream getStreamFromFile(String file) { try { File inputFile = new File(file); InputStream audioStream = new FileInputStream(inputFile); return audioStream; } catch (FileNotFoundException e) { throw new RuntimeException(e); } } private static StartStreamTranscriptionRequest getRequest(Integer mediaSampleRateHertz) { return StartStreamTranscriptionRequest.builder() .languageCode(LanguageCode.EN_US) .mediaEncoding(MediaEncoding.PCM) .mediaSampleRateHertz(mediaSampleRateHertz) .build(); } private static StartStreamTranscriptionResponseHandler getResponseHandler() { return StartStreamTranscriptionResponseHandler.builder() .onResponse(r -> { System.out.println("Received Initial response"); }) .onError(e -> { System.out.println(e.getMessage()); StringWriter sw = new StringWriter(); e.printStackTrace(new PrintWriter(sw)); System.out.println("Error Occurred: " + sw.toString()); }) .onComplete(() -> { System.out.println("=== All records stream successfully ==="); }) .subscriber(event -> { List<Result> results = ((TranscriptEvent) event).transcript().results(); if (results.size() > 0) { if (!results.get(0).alternatives().get(0).transcript().isEmpty()) { System.out.println(results.get(0).alternatives().get(0).transcript()); } } }) .build(); } private static class AudioStreamPublisher implements Publisher<AudioStream> { private final InputStream inputStream; private static Subscription currentSubscription; private AudioStreamPublisher(InputStream inputStream) { this.inputStream = inputStream; } @Override public void subscribe(Subscriber<? super AudioStream> s) { if (this.currentSubscription == null) { this.currentSubscription = new SubscriptionImpl(s, inputStream); } else { this.currentSubscription.cancel(); this.currentSubscription = new SubscriptionImpl(s, inputStream); } s.onSubscribe(currentSubscription); } } public static class SubscriptionImpl implements Subscription { private static final int CHUNK_SIZE_IN_BYTES = 1024 * 1; private final Subscriber<? super AudioStream> subscriber; private final InputStream inputStream; private ExecutorService executor = Executors.newFixedThreadPool(1); private AtomicLong demand = new AtomicLong(0); SubscriptionImpl(Subscriber<? super AudioStream> s, InputStream inputStream) { this.subscriber = s; this.inputStream = inputStream; } @Override public void request(long n) { if (n <= 0) { subscriber.onError(new IllegalArgumentException("Demand must be positive")); } demand.getAndAdd(n); executor.submit(() -> { try { do { ByteBuffer audioBuffer = getNextEvent(); if (audioBuffer.remaining() > 0) { AudioEvent audioEvent = audioEventFromBuffer(audioBuffer); subscriber.onNext(audioEvent); } else { subscriber.onComplete(); break; } } while (demand.decrementAndGet() > 0); } catch (Exception e) { subscriber.onError(e); } }); } @Override public void cancel() { executor.shutdown(); } private ByteBuffer getNextEvent() { ByteBuffer audioBuffer = null; byte[] audioBytes = new byte[CHUNK_SIZE_IN_BYTES]; int len = 0; try { len = inputStream.read(audioBytes); if (len <= 0) { audioBuffer = ByteBuffer.allocate(0); } else { audioBuffer = ByteBuffer.wrap(audioBytes, 0, len); } } catch (IOException e) { throw new UncheckedIOException(e); } return audioBuffer; } private AudioEvent audioEventFromBuffer(ByteBuffer bb) { return AudioEvent.builder() .audioChunk(SdkBytes.fromByteBuffer(bb)) .build(); } } }
컴퓨터 마이크의 스트리밍 오디오를 트랜스크립션합니다.
public class TranscribeStreamingDemoApp { private static final Region REGION = Region.US_EAST_1; private static TranscribeStreamingAsyncClient client; public static void main(String args[]) throws URISyntaxException, ExecutionException, InterruptedException, LineUnavailableException { client = TranscribeStreamingAsyncClient.builder() .credentialsProvider(getCredentials()) .region(REGION) .build(); CompletableFuture<Void> result = client.startStreamTranscription(getRequest(16_000), new AudioStreamPublisher(getStreamFromMic()), getResponseHandler()); result.get(); client.close(); } private static InputStream getStreamFromMic() throws LineUnavailableException { // Signed PCM AudioFormat with 16kHz, 16 bit sample size, mono int sampleRate = 16000; AudioFormat format = new AudioFormat(sampleRate, 16, 1, true, false); DataLine.Info info = new DataLine.Info(TargetDataLine.class, format); if (!AudioSystem.isLineSupported(info)) { System.out.println("Line not supported"); System.exit(0); } TargetDataLine line = (TargetDataLine) AudioSystem.getLine(info); line.open(format); line.start(); InputStream audioStream = new AudioInputStream(line); return audioStream; } private static AwsCredentialsProvider getCredentials() { return DefaultCredentialsProvider.create(); } private static StartStreamTranscriptionRequest getRequest(Integer mediaSampleRateHertz) { return StartStreamTranscriptionRequest.builder() .languageCode(LanguageCode.EN_US.toString()) .mediaEncoding(MediaEncoding.PCM) .mediaSampleRateHertz(mediaSampleRateHertz) .build(); } private static StartStreamTranscriptionResponseHandler getResponseHandler() { return StartStreamTranscriptionResponseHandler.builder() .onResponse(r -> { System.out.println("Received Initial response"); }) .onError(e -> { System.out.println(e.getMessage()); StringWriter sw = new StringWriter(); e.printStackTrace(new PrintWriter(sw)); System.out.println("Error Occurred: " + sw.toString()); }) .onComplete(() -> { System.out.println("=== All records stream successfully ==="); }) .subscriber(event -> { List<Result> results = ((TranscriptEvent) event).transcript().results(); if (results.size() > 0) { if (!results.get(0).alternatives().get(0).transcript().isEmpty()) { System.out.println(results.get(0).alternatives().get(0).transcript()); } } }) .build(); } private InputStream getStreamFromFile(String audioFileName) { try { File inputFile = new File(getClass().getClassLoader().getResource(audioFileName).getFile()); InputStream audioStream = new FileInputStream(inputFile); return audioStream; } catch (FileNotFoundException e) { throw new RuntimeException(e); } } private static class AudioStreamPublisher implements Publisher<AudioStream> { private final InputStream inputStream; private static Subscription currentSubscription; private AudioStreamPublisher(InputStream inputStream) { this.inputStream = inputStream; } @Override public void subscribe(Subscriber<? super AudioStream> s) { if (this.currentSubscription == null) { this.currentSubscription = new SubscriptionImpl(s, inputStream); } else { this.currentSubscription.cancel(); this.currentSubscription = new SubscriptionImpl(s, inputStream); } s.onSubscribe(currentSubscription); } } public static class SubscriptionImpl implements Subscription { private static final int CHUNK_SIZE_IN_BYTES = 1024 * 1; private final Subscriber<? super AudioStream> subscriber; private final InputStream inputStream; private ExecutorService executor = Executors.newFixedThreadPool(1); private AtomicLong demand = new AtomicLong(0); SubscriptionImpl(Subscriber<? super AudioStream> s, InputStream inputStream) { this.subscriber = s; this.inputStream = inputStream; } @Override public void request(long n) { if (n <= 0) { subscriber.onError(new IllegalArgumentException("Demand must be positive")); } demand.getAndAdd(n); executor.submit(() -> { try { do { ByteBuffer audioBuffer = getNextEvent(); if (audioBuffer.remaining() > 0) { AudioEvent audioEvent = audioEventFromBuffer(audioBuffer); subscriber.onNext(audioEvent); } else { subscriber.onComplete(); break; } } while (demand.decrementAndGet() > 0); } catch (Exception e) { subscriber.onError(e); } }); } @Override public void cancel() { executor.shutdown(); } private ByteBuffer getNextEvent() { ByteBuffer audioBuffer = null; byte[] audioBytes = new byte[CHUNK_SIZE_IN_BYTES]; int len = 0; try { len = inputStream.read(audioBytes); if (len <= 0) { audioBuffer = ByteBuffer.allocate(0); } else { audioBuffer = ByteBuffer.wrap(audioBytes, 0, len); } } catch (IOException e) { throw new UncheckedIOException(e); } return audioBuffer; } private AudioEvent audioEventFromBuffer(ByteBuffer bb) { return AudioEvent.builder() .audioChunk(SdkBytes.fromByteBuffer(bb)) .build(); } } }
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자세한 API 내용은 AWS SDK for Java 2.x APIReference의 다음 항목을 참조하십시오.
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- Python
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- SDK파이썬용 (보토3)
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참고
더 많은 정보가 있습니다. GitHub AWS 코드 예시 리포지토리
에서 전체 예시를 찾고 설정 및 실행하는 방법을 배워보세요. import time import boto3 def transcribe_file(job_name, file_uri, transcribe_client): transcribe_client.start_transcription_job( TranscriptionJobName=job_name, Media={"MediaFileUri": file_uri}, MediaFormat="wav", LanguageCode="en-US", ) max_tries = 60 while max_tries > 0: max_tries -= 1 job = transcribe_client.get_transcription_job(TranscriptionJobName=job_name) job_status = job["TranscriptionJob"]["TranscriptionJobStatus"] if job_status in ["COMPLETED", "FAILED"]: print(f"Job {job_name} is {job_status}.") if job_status == "COMPLETED": print( f"Download the transcript from\n" f"\t{job['TranscriptionJob']['Transcript']['TranscriptFileUri']}." ) break else: print(f"Waiting for {job_name}. Current status is {job_status}.") time.sleep(10) def main(): transcribe_client = boto3.client("transcribe") file_uri = "s3://test-transcribe/answer2.wav" transcribe_file("Example-job", file_uri, transcribe_client) if __name__ == "__main__": main()
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자세한 API AWS SDK내용은 Python (Boto3) API 참조의 다음 항목을 참조하십시오.
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사용자 지정 어휘 생성 및 세부 조정
Amazon Translate