Play silence to prevent missing information at start of speech #14386
Labels
component/audio
NVDA's audio output (nvWave, issues with usb audio etc).
feature
p3
https://github.com/nvaccess/nvda/blob/master/projectDocs/issues/triage.md#priority
triaged
Has been triaged, issue is waiting for implementation.
Milestone
Comments
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Look at the bluetooth audio add-on |
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There used to be a stand alone exe that was called something like
Silencio.exe that did this to get over the latency in many bits of sound
hardware and their drivers by a well known driver maker. Maybe this is what
is required here? It depends on how the latency occurs on the headphones,
and how they detect there is a a sound.
Brian
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Sent: Sunday, November 20, 2022 12:32 AM
Subject: [nvaccess/nvda] suggestion: add a silence sound to avoid latency on
wireless headphones via bluetooth (Issue #14386)
hello guys.
i would like to see in future versions of NVDA a feature that does exists
i jaws already since jaws 2020.
well, basically i am using my new airpod with my compuer, and sometimes i
do loose the begining of a word due to latency. it is because since the
airpod has no audio signal, it does locks out the sound, so whenever i do
hear something, it cuts.
the only way to avoid this, and make the headphone / airpod working
without the beggining gap / latency, is to keep always playing a silence
sound. as it happens with jaws.
I know that this is gonna cost my batteries, but, no problems cause it
really drains my energy to keep the screen reader talking or playing
something, so i dont loose a word.
as a feature request, a new function called: keep playing silence soundd
even when no speech.
any ideias?
thanks
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cc: @jcsteh I think you had submited a pull request on this some time ago right? |
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My pull request was to keep the audio device open for longer. That got rewritten somewhat by NV Access, but the core idea got merged already. However, it seems that for some devices, even keeping the device open isn't enough and you actually have to play silence. I never submitted a pull request for that, but the Bluetooth Audio add-on does this. |
feerrenrut
changed the title
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While there are some concerns about battery life of the devices, I think this can be mostly mitigated with some logic around when the silence is played, some ideas:
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feerrenrut
added
p3
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Would love to see this proposal implemented |
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I wonder if #14697 will have any positive effect on this? |
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Unlikely, but I am curious nevertheless. That said, it should be easier to implement continuous silence with the WASAPI code. |
5 tasks
seanbudd
pushed a commit
that referenced
this issue
Feb 8, 2024
Fixes #14386 Summary of the issue: Play silence in order to keep audio device open Description of user facing changes By default most users won't notice anything as default volume is 0 (playing silence). I added two config options in the advanced panel: silence duration (default = 30 seconds) and white noise volume (default is set to 0). Playing white noise would be helpfulin order to debug any user issues related to audio dropout. Description of development approach Most of heavylifting has been done by @jcsteh. In wasapi.cpp there has been added class SilencePlayer that spawns a new thread, that just plays silence/white noise when requested. Requests are coming from python code in nvwave.py from WasapiWavePlayer.feed() function.
Nael-Sayegh
pushed a commit
to Nael-Sayegh/nvda
that referenced
this issue
Feb 15, 2024
Fixes nvaccess#14386 Summary of the issue: Play silence in order to keep audio device open Description of user facing changes By default most users won't notice anything as default volume is 0 (playing silence). I added two config options in the advanced panel: silence duration (default = 30 seconds) and white noise volume (default is set to 0). Playing white noise would be helpfulin order to debug any user issues related to audio dropout. Description of development approach Most of heavylifting has been done by @jcsteh. In wasapi.cpp there has been added class SilencePlayer that spawns a new thread, that just plays silence/white noise when requested. Requests are coming from python code in nvwave.py from WasapiWavePlayer.feed() function.
Adriani90
pushed a commit
to Adriani90/nvda
that referenced
this issue
Mar 13, 2024
Fixes nvaccess#14386 Summary of the issue: Play silence in order to keep audio device open Description of user facing changes By default most users won't notice anything as default volume is 0 (playing silence). I added two config options in the advanced panel: silence duration (default = 30 seconds) and white noise volume (default is set to 0). Playing white noise would be helpfulin order to debug any user issues related to audio dropout. Description of development approach Most of heavylifting has been done by @jcsteh. In wasapi.cpp there has been added class SilencePlayer that spawns a new thread, that just plays silence/white noise when requested. Requests are coming from python code in nvwave.py from WasapiWavePlayer.feed() function.
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Is your feature request related to a problem? Please describe.
When using some bluetooth headphones, speech output is not heard after NVDA has some moments of silence.
The headphones appear to go into standby and miss the start of speech.
Keeping NVDA active is tiring, missing speech is annoying and confusing.
Describe the solution you'd like
Add an option to play silence to keep NVDA active.
Describe alternatives you've considered
Use bluetooth audio add-on.
Additional context
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