/// <summary>
///
/// </summary>
/// <param name="settings"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public override async Task <IStreamingRecognition> StartStreamingRecognitionAsync(
AudioSettings?settings = null,
CancellationToken cancellationToken = default)
{
settings ??= SupportedStreamingSettings.First();
IamToken ??= await RequestIamTokenByOAuthTokenAsync(OAuthToken, cancellationToken).ConfigureAwait(false);
var channel = new Channel("stt.api.cloud.yandex.net", 443, new SslCredentials());
var client = new SttService.SttServiceClient(channel);
var call = client.StreamingRecognize(new Metadata
{
{ "authorization", $"Bearer {IamToken}" }
}, cancellationToken: cancellationToken);
await call.RequestStream.WriteAsync(new StreamingRecognitionRequest
{
Config = new RecognitionConfig
{
Specification = new RecognitionSpec
{
LanguageCode = Lang,
ProfanityFilter = ProfanityFilter,
Model = Topic,
AudioEncoding = settings.Format switch
{
AudioFormat.Ogg => RecognitionSpec.Types.AudioEncoding.OggOpus,
AudioFormat.Raw => RecognitionSpec.Types.AudioEncoding.Linear16Pcm,
_ => RecognitionSpec.Types.AudioEncoding.Unspecified,
},
public SpeechKitSttStreamClient(Uri address, string folderId, string IamToken,
RecognitionSpec rSpec, ILoggerFactory loggerFactory) : base(address, IamToken)
{
this.rConf = new RecognitionConfig()
{
FolderId = folderId,
Specification = rSpec
};
speechKitRpctClient = new SttService.SttServiceClient(MakeChannel(loggerFactory));
}
public SkRecognitionClient(Uri address, string folderId, string IamToken, RecognitionSpec rSpec,
ILoggerFactory loggerFactory, ISkTaskDb taskDb)
{
this.log = loggerFactory.CreateLogger <SkRecognitionClient>();
this.taskDb = taskDb;
this.endpointAddress = address;
this.IamToken = IamToken;
this.rConf = new RecognitionConfig()
{
FolderId = folderId,
Specification = rSpec
};
SslCredentials sslCred = new Grpc.Core.SslCredentials();
var chn = GrpcChannel.ForAddress(endpointAddress, new GrpcChannelOptions {
LoggerFactory = loggerFactory
});
speechKitRpctClient = new SttService.SttServiceClient(chn);
}
