php语法可以实现语音合成和语音识别吗？

  

语音合成（Text-To-Speech，TTS）是将文本转换为语音的过程。php语法中有许多库和工具可以实现语音合成，下面编程教程网小编给大家简单介绍一下！

1、利用Google Text-to-Speech API实现语音合成

$text = "Hello, world.";
$url = "https://texttospeech.googleapis.com/v1/text:synthesize?key=[API_KEY]";
$data = array(
  "input" => array(
    "text" => $text
  ),
  "voice" => array(
    "languageCode" => "en-US",
    "name" => "en-US-Wavenet-D"
  ),
  "audioConfig" => array(
    "audioEncoding" => "MP3"
  )
);
$json = json_encode($data);
 
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $json);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER, array(
  "Content-Type: application/json"
));
$result = curl_exec($curl);
curl_close($curl);
 
file_put_contents("output.mp3", $result);

2、利用Google Cloud Speech-to-Text API实现语音识别

$file_name = "audio.wav";
$file_content = file_get_contents($file_name);
 
$url = "https://speech.googleapis.com/v1/speech:recognize?key=[API_KEY]";
$data = array(
  "config" => array(
    "encoding" => "LINEAR16",
    "sampleRateHertz" => 16000,
    "languageCode" => "en-US"
  ),
  "audio" => array(
    "content" => base64_encode($file_content)
  )
);
$json = json_encode($data);
 
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $json);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER, array(
  "Content-Type: application/json"
));
$result = curl_exec($curl);
curl_close($curl);
 
$obj = json_decode($result);
if (isset($obj->results)) {
  $text = $obj->results[0]->alternatives[0]->transcript;
  echo $text;
}

 

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