Hasan,
We are talking about RX audio. I use a SignaLink USB, not the on board sound
system,and am experiencing the problem. Interestingly, when I execute another
program calledMARS-ALE, it somehow forces the RX audio to 0.0 db. Not sure how
N2CKH did that but perhapsit would be a possibility in WSJT-X at some point.
Best regards,
Gary, K7EK
Radcliff, KY (EM77at)
---
On Tuesday, April 30, 2019, 5:47:04 PM EDT, Hasan al-Basri
<[email protected]> wrote:
I am also using an external usb sound dongle (the $5 variety from Amazon). I
am not seeing any of the noted audio issues with the 64 bit version.
I have set the audio once, gone back and forth, started, stopped the program,
changed configs. I don't see it. I assumed it was because it was not the
motherboard sound card. Now I gather from Bill that it is because it has no
level setting.
BTW, I assume we are talking about transmit level setting, not rx?
73, N0ANHasan
On Tue, Apr 30, 2019 at 3:35 PM Bill Somerville <[email protected]> wrote:
On 30/04/2019 21:03, Neil Zampella wrote:
>
> FWIW .. Mike recommended a few years ago at least that you change the
> properties from showing a PERCENTAGE to a dB level. I have mine set to
> 0 dB on the properties, and have not see the issues others are seeing
> with the 64 bit version.
>
> I am using an external USB soundcard with the system (Sound Blaster
> xFi) which may be the reason I'm not seeing the issues, but I'm
> thinking its more the property setting.
>
> Neil, KN3iLZ
>
Hi Neil,
the issue is universal for all sound cards, including virtual devices
like loopback services. For some devices 100% level is 0dB, i.e. they
have no gain ahead of the ADC (or no ADC if they are a virtual device)
apart from the mic. boost stage which is not affected by this issue.
So for those using digital audio loopback devices and sound cards with
no front end gain adjustment, there is no real problem assuming 0dB is
compatible with the audio level being sampled. The real issue is where a
sound card has gain ahead of the ADC because we cannot detect that and
it will be set to maximum unconditionally on restart.
The Qt fix that is in the pipeline will revert to not changing the
existing gain settings when an audio input stream is opened.
73
Bill
G4WJS.
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