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No speech aware audio ducking with NVDA2021.2, Windows11 and SAPI 5 #12913
Description
Steps to reproduce:
- Set your synth driver to a Microsoft Speech ApI 5 voice, with audio ducking enabled for sounds/speech.
- Play a constant sound with constant volume (eg music)
- Use your computer, note that audio ducking does not occur when speech occurs
Actual behavior:
Audio does not duck on speech
Expected behavior:
Audio ducks on speech
System configuration
NVDA installed/portable/running from source:
NVDA version:
Present in alpha-23874,d8dc04c7, NVDA 2021.2
Windows version:
Windows 11 22000.194
Name and version of other software in use when reproducing the issue:
Other information about your system:
Other questions
Does the issue still occur after restarting your computer?
yes
Have you tried any other versions of NVDA? If so, please report their behaviors.
If NVDA add-ons are disabled, is your problem still occurring?
yes
Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?
yes
Activity
seanbudd commentedon Oct 7, 2021
Can confirm with NVDA 2021.2 and Windows 11.
feerrenrut commentedon Oct 7, 2021
Please can you (or @seanbudd) update this with whatever information you can to fill out the template. Are there any error messages in the NVDA log (please attach them)?
Herne89 commentedon Oct 7, 2021
LeonarddeR commentedon Oct 7, 2021
i'd like to add that audio ducking does work when set to always duck.
seanbudd commentedon Oct 8, 2021
Can confirm there is no log in relation to audioducking, it also seems that automatic language switching is not supported (not sure if this is a new issue with this synth).
seanbudd commentedon Oct 8, 2021
There's no advanced audioducking logging whatsoever either when using that synth
Herne89 commentedon Oct 9, 2021
[-]NVDA2021.2 Windows11 and Microsoft speech API 5[/-][+]No speech aware audio ducking with NVDA2021.2, Windows11 and SAPI 5[/+]seanbudd commentedon Oct 12, 2021
This is due to Windows 11 changing how SAPI 5 outputs audio. NVDA detects SAPI5 output to duck.
Finding an alternative mechanism to detect SAPI5 audio output is unlikely to be done in time for 2021.3.
support audio ducking for SAPI5 on Windows 11 (#13118)