Re: Inserting Latency in NVDA Speech and Bluetooth Audio

Tony Malykh

Here is a quick hack. Open NVDA python console and type:

import time
originalSpeechSpeak = speech.speak
def preSpeak(speechSequence, symbolLevel=None, *args, **kwargs):
    return originalSpeechSpeak(speechSequence, symbolLevel, *args, **kwargs)
speech.speak = preSpeak

You'd need to restart your NVDA for the delay to go away.



On 12/2/2020 6:28 PM, Bhavya shah wrote:
Dear all,

This may come off as an odd request, but I do need it to simulate a
certain scenario. I would like to have NVDA's speech - with the same
voice settings and my same ESpeak-NG - be outputted but with a delay
of 150 ms. Latency is generally frowned upon, yes, but I would like to
artificially manufacture it at present. Is there some way of doing

For context, I am aware that standard Bluetooth audio (sans low
latency audio codecs) typically have an associated latency of 150-250
ms. Since I do not have the required equipment to test that
practically, I want to emulate that latency with NVDA on my laptop
speakers so as to get a sense of how much a couple hundred
milliseconds of delay is likely to affect me in the real world.


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