How can I save TTS audio file in UWP?

Question

How can I save TTS audio file in UWP?

P2441M 0

I am trying to integrate my Azure Speech service into a UWP application. But I've no idea how to save the Text To Speech result in a wave file, since I can only write files that user selected.

So I've tried to write to the StorageFile directly using SpeechSynthesisResult.AudioData , but the saved audio is invalid to play by doing so. Also, if I use AudioDataStream , it's also hard to save it as a play-able audio.

Any advice would be helpful!

Thank you!

Ramr-msft 17,826

@P2441M Thanks for the question, You can save the Text To Speech result in a wave file in a UWP application by using the SpeechSynthesizer class and the SynthesizeTextToStreamAsync method. Here is an example of how you can do this:

var synthesizer = new SpeechSynthesizer();
SpeechSynthesisStream stream = await synthesizer.SynthesizeTextToStreamAsync("Hello World");
var savePicker = new FileSavePicker();
savePicker.SuggestedStartLocation = PickerLocationId.Desktop;
savePicker.FileTypeChoices.Add("Sound", new List<string>() { ".wav" });
savePicker.SuggestedFileName = "speech";
var file = await savePicker.PickSaveFileAsync();
using (var reader = new DataReader(stream))
{
    await reader.LoadAsync((uint)stream.Size);
    IBuffer buffer = reader.ReadBuffer((uint)stream.Size);
    await FileIO.WriteBufferAsync(file, buffer);
}

This code will prompt the user to select a location to save the wave file, and then save the Text To Speech result to that location.

P2441M 0 Reputation points

2023-08-08T01:21:47.4633333+00:00

Thanks for your reply! But to be honest, I can't find the method SpeechSynthesizer.SynthesizeTextToStreamAsync in neither the Microsoft's document nor C# Intellisense.

I'm using Microsoft.CognitiveServices.Speech 1.31.0, is it a problem of the version?
P2441M 0 Reputation points

2023-08-08T01:39:26.8566667+00:00

Thanks for your reply! But to be honest, I can't find the method SpeechSynthesizer.SynthesizeTextToStreamAsync you mentioned above.

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Your answer

Ramr-msft 17,826 Reputation points

2023-08-08T01:05:23.01+00:00

@P2441M Thanks for the question, You can save the Text To Speech result in a wave file in a UWP application by using the SpeechSynthesizer class and the SynthesizeTextToStreamAsync method. Here is an example of how you can do this:

var synthesizer = new SpeechSynthesizer(); SpeechSynthesisStream stream = await synthesizer.SynthesizeTextToStreamAsync("Hello World"); var savePicker = new FileSavePicker(); savePicker.SuggestedStartLocation = PickerLocationId.Desktop; savePicker.FileTypeChoices.Add("Sound", new List<string>() { ".wav" }); savePicker.SuggestedFileName = "speech"; var file = await savePicker.PickSaveFileAsync(); using (var reader = new DataReader(stream)) { await reader.LoadAsync((uint)stream.Size); IBuffer buffer = reader.ReadBuffer((uint)stream.Size); await FileIO.WriteBufferAsync(file, buffer); }

This code will prompt the user to select a location to save the wave file, and then save the Text To Speech result to that location.
P2441M 0 Reputation points

2023-08-08T01:21:47.4633333+00:00

Thanks for your reply! But to be honest, I can't find the method SpeechSynthesizer.SynthesizeTextToStreamAsync in neither the Microsoft's document nor C# Intellisense.

I'm using Microsoft.CognitiveServices.Speech 1.31.0, is it a problem of the version?
P2441M 0 Reputation points

2023-08-08T01:39:26.8566667+00:00

Thanks for your reply! But to be honest, I can't find the method SpeechSynthesizer.SynthesizeTextToStreamAsync you mentioned above.

Answer 1

P2441M 0

Finally, I've solved this question. To my surprise, the solution (best in my situation) is very simple, which is to simply save the audio file to ApplicationData.Current.LocalFolder.Path. This is permitted while saving to other locations isn't.

But I still can't find a way to save the file to user-selected StorageFile 😅

Ramr-msft 17,826 Reputation points

2023-08-31T04:20:56.0866667+00:00

@P2441M Thanks for the update.

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How can I save TTS audio file in UWP?

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