Decoded Audio - Flex Integration vs Desktop Audio

[K9YK Radio]

Since I've had a few days to listen to FreeDV decoded (received) audio I've noticed that the decoded audio coming from the Flex integration (both the RPi AppImage, and my own built Ubuntu instance) produced quite a bit a robotic noise when receiving a station and the person pauses between words, or inhales while speaking.   The desktop version of FreeDV doesn't seem to have this issue.   I'm testing running both the Flex integration and desktop version on my Flex at the same time using two different slices. One slice is in FDVU mode and the other slice is in USB feeding the desktop version via DAX.   What causes the difference in behavior/decode quality between the two versions?

I've also noticed that the decoded audio level coming from the Flex integration version is very low compared to analog SSB audio coming from the radio. This makes me keep reaching for the volume control when switching back and forth between FreeDV and SSB.  Can something be done to increase the decoded audio level for the Flex integrated version?

Mark (K9YK)

[Stefan N.]

My experience with the waveform (RSPi 4+) so far:

Switching AGC from „mid“ to „slow“ produces a better RX audio.

No complaints from other OM‘s about any low audio level from my side.

Going to check that out the coming days via diff. WebSdr‘s.

Thought that the mic adjustment (level controlled by the meter) has the same function than in SSB?

Would be helpful to put basic infos in the message window (name and QTH) and to have a option to edit the Locator. 

I know, that is already in the pipeline👍

I also don’t see any SNR‘s on the screen🤔

🥳 Happy new (FDV) year🎉

Stefan - DF6VI