iOS version is using Microsoft TTS SDK occurs an error

Question

Hello, our iOS version is using Microsoft TTS SDK, the version is: pod 'MicrosoftCognitiveServicesSpeech-iOS', '~> 1.35.0'

When calling the official demo, an error occurred, specifically:

func synthesisToSpeaker() {

     var speechConfig: SPXSpeechConfiguration?

     do {

         try speechConfig = SPXSpeechConfiguration(subscription: sub, region: region)

     } catch {

         print("error \(error) happened")

         speechConfig = nil

     }

     let synthesizer = try! SPXSpeechSynthesizer(speechConfig!)

     if inputText.isEmpty {

         return

     }

     let result = try! synthesizer.speakText(inputText)

     if result.reason == SPXResultReason.canceled

     {

         let cancellationDetails = try! SPXSpeechSynthesisCancellationDetails(fromCanceledSynthesisResult: result)

         print("cancelled, detail: \(cancellationDetails.errorDetails!) ")

     }

 }

Error: Codec decoding is not started within 2s.

Please tell me how to solve this problem. Looking forward to your reply, thank you

Answer 1

@newsay Welcome to Microsoft Q&A Forum, Thank you for posting your query here!

The issue has been posted in the below GitHub channel. This issue is still being investigated. There is no fix available yet, however the workaround shared here should help:

https://github.com/Azure-Samples/cognitive-services-speech-sdk/issues/2150#issuecomment-2045227515

Workaround:

Please disable the compressed audio transmission feature by setting SpeechServiceConnection_SynthEnableCompressedAudioTransmission property to false in speech config and check if that helps.

speechConfig.setProperty(sdk.PropertyId.SpeechServiceConnection_SynthEnableCompressedAudioTransmission, "false");

Hope this helps. If you have any follow-up questions, please let me know. I would be happy to help.