How to keep trck of transcriptioncomming from Azure - wpf

Question

I have an audio file in mp3 format, that internally I convert into WAV, when everything is done, I send it to the AI. I notice, that the time of transcription varies depending on different factors (length of audio, the region of your service, latency, internet speed, etc).
So how can I add a progress bar to my application, that keeps track accurately, and display the percentage?
I was researching, and I found a method that does this, but for files being uploaded to Azure Blob, I think is easier because you can calculate the file.size. and length.
What about transcriptions, that there is no way for us to determine things?
private async void AzureActionAsync(object obj)
{
var str = obj as string;
if (string.IsNullOrEmpty(str))
{
return;
}
switch (str)
{
case "AudioTranscription":
const string ext = ".wav";
var dlg = new OpenFileDialog
{
DefaultExt = ".mp3",
Filter = "Audio files (.mp3)|*.mp3"
};
var res = dlg.ShowDialog();
if (res! == true)
{
var AudioName = Path.GetFileNameWithoutExtension(dlg.SafeFileName);
var projectPath = Directory.GetParent(Directory.GetCurrentDirectory())?.Parent?.Parent?.FullName;
var FoderName = Path.Combine(projectPath!, "Audios");
var filePath = Path.Combine(FoderName, $"{AudioName}{ext}");
using var mp3 = new Mp3FileReader(dlg.FileName);
using var ws = WaveFormatConversionStream.CreatePcmStream(mp3);
WaveFileWriter.CreateWaveFile(filePath, ws);
await ConvertToTextAsync(filePath);
}
break;
}
}
private async Task ConvertToTextAsync(string FilePath)
{
// Configure speech service
var config = SpeechConfig.FromSubscription(Config.Constants.AZURE_KEY, Config.Constants.AZURE_REGION);
// Configure speech recognition
var taskCompleteionSource = new TaskCompletionSource<int>();
using var audioConfig = AudioConfig.FromWavFileInput(FilePath);
using var speechRecognizer = new SpeechRecognizer(config, audioConfig);
speechRecognizer.Recognizing += SpeechRecognizer_Recognizing;
speechRecognizer.Recognized += SpeechRecognizer_Recognized;
speechRecognizer.SessionStarted += SpeechRecognizer_SessionStarted;
speechRecognizer.SessionStopped += SpeechRecognizer_SessionStopped;
await speechRecognizer.StartContinuousRecognitionAsync().ConfigureAwait(false);
Task.WaitAny(new[] { taskCompleteionSource.Task });
await speechRecognizer.StopContinuousRecognitionAsync().ConfigureAwait(false);
}
private void SpeechRecognizer_SessionStopped(object? sender, SessionEventArgs e)
{
var sb = new StringBuilder();
foreach (var item in Words)
{
sb.Append(item);
}
BackgroundClipboard.SetText(sb.ToString());
if (!string.IsNullOrEmpty(BackgroundClipboard.GetText()))
{
Application.Current.Dispatcher.Invoke(() =>
{
var spellWindow = new SpellCheckWindow();
spellWindow.ShowDialog();
});
}
}
private void SpeechRecognizer_SessionStarted(object? sender, SessionEventArgs e)
{
}
private void SpeechRecognizer_Recognized(object? sender, SpeechRecognitionEventArgs e)
{
if (e.Result.Reason == ResultReason.RecognizedSpeech)
{
foreach (var item in e.Result.Text)
{
Words.Add(item);
}
}
}
private void SpeechRecognizer_Recognizing(object? sender, SpeechRecognitionEventArgs e)
{
}
}
<Border Background="#272537" CornerRadius="20">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition />
</Grid.RowDefinitions>
<Button
HorizontalAlignment="Right"
materialDesign:RippleAssist.Feedback="Transparent"
Background="{x:Null}"
BorderBrush="{x:Null}"
Command="{Binding ExitCommand}"
Focusable="False">
<materialDesign:PackIcon Kind="Close" />
</Button>
<ItemsControl Grid.Row="1" ItemsSource="{Binding Tiles}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Margin="40" Columns="2" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<syncfusion:SfHubTile Background="{Binding TileColor}" IsEnabled="{Binding IsTileActive}">
<behaviors:Interaction.Triggers>
<behaviors:EventTrigger EventName="Click">
<behaviors:InvokeCommandAction
Command="{Binding TileCommand}"
CommandParameter="{Binding TileTitle}"
PassEventArgsToCommand="True" />
</behaviors:EventTrigger>
</behaviors:Interaction.Triggers>
<Label
HorizontalContentAlignment="Center"
VerticalContentAlignment="Center"
Content="{Binding TileIcon}"
FontFamily="{StaticResource Material}"
FontSize="120"
Foreground="White" />
</syncfusion:SfHubTile>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</Grid>
</Border>
and where in my UI I can thank you for the help this