SDK returns no match, but the online recognizer works. about cognitive-services-speech-sdk-js

[rhurey]

Hey, thanks for reaching out!

The Speech SDK will need to be told about the format of the audio being sent in if it's not 16bit-16Khz mono.

There's a sample class here that will read the header information from a wave file and write the file to a push stream.

You can see it used here.

Please let me know if you need anything else.

[jBernavaPrah]

Hi @rhurey,
thanks for your reply!

Unfortunately, the sample code you posted is not working with WAV files with headers created in "wave_format_extended".

I will try to change the code, to stripe those headers and push directly the audio bytes to the SDK with the hard-coded format.

In the meantime, what formats does the Azure Speech Service accept?
In the examples/tests, the audio files in the SDK source code, are in 16khz and 16bit and the same online speech tool transforms the file to 16khz and 16bit. Is this the only accepted format from the Azure Speech Recognition service?

Thanks!

[jBernavaPrah]

Updates:
The service successfully recognized my voice when I sent the raw audio stripped by the audio extended headers and with the specific format of the audio file (48khz and 32bitpersample and PCM).

Thanks for your time!