toggle quoted messageShow quoted text
Alright. So here's what's going on.
This is another one of those NVDA bugs that have been there for
years without a fix.
What's going on is that when the synthesizer loads, NVDA gets the
ID of the sound card. It uses that ID to speak through until you
change it or until it restarts.
However, unplugging the sound card and plugging it back in might
change its ID, and NVDA doesn't notice.
So to avoid this, just hit alt control n to restart NVDA and it
should use the correct card again.
On 12/10/2019 8:03 PM, Giles Turnbull
I encountered a strange issue tonight while using a USB sound
card. I have experienced it once before but didn't know what had
happened, but this time I think I realise what has happened and
I'm wondering if it is an NVDA bug or an expected situation. If it
is expected, I'm wondering if there is a workaround?
This bit of info isn't connected to the problem but it does help
in the explanation. When I listen through wifi headphones via the
USB soundcard, I hear most audio through the headphones but system
sounds still come from the laptop speakers. I've asked about this
on this list before so understand what is going on with that and
how I could change it if I was sufficiently bothered.
Anyway, what happened tonight was that I was trying to open a book
I'd purchased in Adobe Digital Editions. ADE stopped responding
and sometimes when programs stop responding (Firefox does this
sometimes), closing NVDA and re-opening it allows NVDA to work
with the program again.This did not happen this time and here's
where the issue really starts.
I understand why NVDA switched back to using the laptop soundcard
and speakers rather than the USB soundcard and headphones, but
what was strange was that when I went and unplugged the USB
soundcard (hoping to restore USB soundcard and headphone sound by
unplugging the USB soundcard and plugging it back in again) when I
unplugged the USB device I lost all sound. NVDA could only b e
heard through the laptop speakers when the USB soundcard was
plugged in but, when it was plugged in, no sound came through the
I'm curious about why unplugging the USB soundcard stopped all
audio through the laptop speakers, whilst plugging it back in
(which probably should have restored audio through the headphones)
didn't restore headphone sound but did restore laptop speaker
The only solution I could think of to get the different soundcards
behaving the way they should, was to restart the laptop and unplug
the USB soundcard before Windows rebooted. That is how I logged
back in and have now re-connected the USB soundcard and am
listening through my wifi headphones again.
My question is whether there is any way, other than restarting the
laptop, to restart NVDA without causing problems between the
I'm using NVDA 2019.2 and Windows 10 Version 1903 (OS Build
18362.476). My USB soundcard is quite an expensive one, an
audioquest Dragonfly Red.
Grateful for any suggestions (other than the obvious one of not
re-starting NVDA whilst an external soundcard is being used)