Dialogflow/src/V2/QueryInput.php
public function setAudioConfig($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Dialogflow\V2\InputAudioConfig::class);
        $this->writeOneof(1, $var);

        return $this;
    }
public function setAudioConfig($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Dialogflow\V2\InputAudioConfig::class);
        $this->writeOneof(1, $var);

        return $this;
    }
public function setAudioConfig ( $ var ) { GPBUtil :: checkMessage ( $ var , \ Google \ Cloud \ Dialogflow \ V2 \ InputAudioConfig :: class ) ; $ this -> writeOneof ( 1 , $ var ) ; return $ this ; }
Instructs the speech recognizer how to process the speech audio.

Generated from protobuf field <code>.google.cloud.dialogflow.v2.InputAudioConfig audio_config = 1;</code>
@param \Google\Cloud\Dialogflow\V2\InputAudioConfig $var
@return $this
Instructs the speech recognizer how to process the speech audio .