General / Other
Open
2026-09-29 16:54:29 UTC
Seems there is a problem with RTTY/JTTY modem. Sound is bad and locked to left channel. Impossible t
F4THN
guest
Seems there is a problem with RTTY/JTTY modem. Sound is bad and locked to left channel. Impossible to send it on FT991 soundcard.
## Bug Report — Decodium 1.0.654
### User Description
### System Info
```
OS: Ubuntu 24.04.5 LTS x86_64
Qt: 6.11.0
App: Decodium 1.0.654
Screen 0: 1920x1080 @96 DPI (scale 1.00)
Screen 1: 1920x1080 @96 DPI (scale 1.00)
AudioIn: Family 17h/19h HD Audio Controller Stéréo analogique
AudioIn: Gaming Webcam [Kiyo] Stéréo analogique
AudioIn: PCM2903B Audio CODEC Stéréo analogique
AudioOut: Family 17h/19h HD Audio Controller Stéréo analogique
AudioOut: PCM2903B Audio CODEC Stéréo analogique
AudioOut: TU116 High Definition Audio Controller Stéréo numérique (HDMI)
```
### Auto-Analysis
No known bug patterns matched. This may be a new issue.
Replies 2
F4THN
guest
2026-09-30 17:22:58 UTC
Hello,
For more explanation, it seems not working with rtty/jtty mode.
When on FT8 TX mode, for example, i can choose where send sound on setup interface. FT8 is working well on right channel and not in left channel (normal situation).
When on RTTY/JTTY TX mode, sound is sent all time to left channel. My FT991 seems to receive on RIGHT channel qo i can't experiment these modes. Only TX is realised without sound.
F4THN
guest
2026-10-02 08:46:11 UTC
Same problem on UBUNTU 26.04 and Decodium last version.