createPushStream() accepts mulaw format(maybe not when you write this question). Made some changes to your code and it's working fine. These are the updates const azurePusher = sdk.AudioInputStream.createPushStream(sdk.AudioStreamFormat.getWaveFormat(8000, 16, 1, 2)); And passed the stream directly after decode azurePusher.write(Buffer.from(msg.media.payload, "base64"));

Using Azure speech to text with nodejs converting mulaw to pcm

Kenneth Arakelian 6

I'm using twilio

romungi-MSFT 41,961 Reputation points Microsoft Employee

2021-09-30T05:59:26.557+00:00

@Kenneth Arakelian I have come across an issue on speech SDK repo that discusses the support of Twilio stream with speech SDK. It looks like the support for this scenario is still in the pipeline. However a workaround is provided by the user using gstreamer on their repo for .NET, I will check internally if a similar solution is available for nodejs or you could post an issue or feature on speech SDK repo for the same. Thanks!!
Kenneth Arakelian 6 Reputation points

2021-09-30T14:34:56.593+00:00

Thank you - I really appreciate it!
谷脇雄哉 1 Reputation point

2021-10-14T06:48:02.517+00:00

Hi.
I'm encountering the same phenomenon, but what should I do with this problem after all?
I would be grateful if you could tell me.

1 answer

Anees Sadeek 5 Reputation points

2023-03-30T07:21:00.56+00:00

createPushStream() accepts mulaw format(maybe not when you write this question).

Made some changes to your code and it's working fine. These are the updates

const azurePusher = sdk.AudioInputStream.createPushStream(sdk.AudioStreamFormat.getWaveFormat(8000, 16, 1, 2));

And passed the stream directly after decode

azurePusher.write(Buffer.from(msg.media.payload, "base64"));
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