Transcription very slow

[vidhanbagdai]

There is a delay of almost 6-7 seconds between what I speak and the real time transcription that happens, i.e. the text comes up on screen after 6-7 seconds after I finish speaking. The network speed is almost 100 mbps, still this issue occurs.

[tamdilip]

Yes the transcription latency is high 😐 !!

[vidhanbagdai]

Yes I know! It is impossible to showcase this to potential clients.

[vidhanbagdai]

Does anyone have a sloution for this?

[cwwiser]

Hi, might I suggest tuning your lambdas- I added memory to the real-time lambdas and see fantastic performance in my environment. Also, 100mbps is a measure of bandwidth, not an indication of network latency..

[vidhanbagdai]

@cx-cwiser Tried increasing the memory of lambdas, the transcribed text is coming up quicker on screen but still there is a gap of 5-6 seconds between what the customer speaks and the writing of the transcribed text. Any other suggeestioin or perhaps how much memory to assign to each lambda?

[laimonassutkus]

Its due to the Comprehend/Transcribe service itself. Deal with it. If you want something fast use WEB Speech API.

[efh365]

You can also try to keep your KVSTranscriber Lambda function warm by following this blog: https://aws.amazon.com/blogs/compute/new-for-aws-lambda-predictable-start-up-times-with-provisioned-concurrency/

You will need to update the KVSTrigger function to call the pre-warmed version of the function

[khastation]

@vidhanbagdai are you still facing this issue?