Cloud Speech-to-Text API C++ (beta version)

[gauravG2021]

Hi,
we want to replace the c++ STT libraries of previous vendor with google stt client library.
I have like below questions:-

1. Are the Cloud Speech-to-Text API C++ libraries are comerciallly stable?
2. Cloud Speech-to-Text API C++ i see at few places as being referd as experminetal or beta version?
3. does it permorfm STT on AMR-WB codes?

[dbolduc]

1. Are the Cloud Speech-to-Text API C++ libraries commercially stable?

Yes, the C++ client library is commercially stable...

2. Cloud Speech-to-Text API C++ I see at few places as being referred as experimental or beta version?

...but as you point out, the library contains some experimental APIs.

Experimental Speech-to-Text v2 client:
The library has a google::cloud::speech_v2::SpeechClient, which is experimental, because the service, Cloud Speech-to-Text v2, is pre-GA (not commercially stable).

I recommend using the v1 service, unless you need some feature that is only available in v2. The client for the v1 service is: google::cloud::speech::SpeechClient (which is used in the quickstart and samples).

Experimental AsyncStreamingRecognize (bidirectional streaming RPC):
The v1 client has an API that is marked as experimental.

google-cloud-cpp/google/cloud/speech/speech_client.h

Lines 202 to 205 in 94285ba

	std::unique_ptr<::google::cloud::AsyncStreamingReadWriteRpc<
	google::cloud::speech::v1::StreamingRecognizeRequest,
	google::cloud::speech::v1::StreamingRecognizeResponse>>
	AsyncStreamingRecognize(ExperimentalTag, Options opts = {});

It is marked as experimental, because the API is a little tricky to use. We do have samples that demonstrate how to use the API. (The streaming_transcribe*.cc programs show how to properly call AsyncStreamingRecognize): https://github.com/GoogleCloudPlatform/cpp-samples/tree/main/speech/api

3. does it perform STT on AMR-WB codes?

According to these docs, yes. https://cloud.google.com/speech-to-text/docs/encoding#audio-encodings

[coryan]

Seems like this is answered. If there is are follow up questions please reopen or create a discussion item.