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transcribe_async_gcs.php
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transcribe_async_gcs.php
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<?php
/**
* Copyright 2016 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* For instructions on how to run the full sample:
*
* @see https://github.com/GoogleCloudPlatform/php-docs-samples/tree/main/speech/README.md
*/
namespace Google\Cloud\Samples\Speech;
# [START speech_transcribe_async_gcs]
use Google\Cloud\Speech\V1\SpeechClient;
use Google\Cloud\Speech\V1\RecognitionAudio;
use Google\Cloud\Speech\V1\RecognitionConfig;
use Google\Cloud\Speech\V1\RecognitionConfig\AudioEncoding;
/**
* @param string $uri The Cloud Storage object to transcribe (gs://your-bucket-name/your-object-name)
*/
function transcribe_async_gcs(string $uri)
{
// change these variables if necessary
$encoding = AudioEncoding::LINEAR16;
$sampleRateHertz = 32000;
$languageCode = 'en-US';
// set string as audio content
$audio = (new RecognitionAudio())
->setUri($uri);
// set config
$config = (new RecognitionConfig())
->setEncoding($encoding)
->setSampleRateHertz($sampleRateHertz)
->setLanguageCode($languageCode);
// create the speech client
$client = new SpeechClient();
// create the asyncronous recognize operation
$operation = $client->longRunningRecognize($config, $audio);
$operation->pollUntilComplete();
if ($operation->operationSucceeded()) {
$response = $operation->getResult();
// each result is for a consecutive portion of the audio. iterate
// through them to get the transcripts for the entire audio file.
foreach ($response->getResults() as $result) {
$alternatives = $result->getAlternatives();
$mostLikely = $alternatives[0];
$transcript = $mostLikely->getTranscript();
$confidence = $mostLikely->getConfidence();
printf('Transcript: %s' . PHP_EOL, $transcript);
printf('Confidence: %s' . PHP_EOL, $confidence);
}
} else {
print_r($operation->getError());
}
$client->close();
}
# [END speech_transcribe_async_gcs]
// The following 2 lines are only needed to run the samples
require_once __DIR__ . '/../../testing/sample_helpers.php';
\Google\Cloud\Samples\execute_sample(__FILE__, __NAMESPACE__, $argv);