Hi! Thanks for reaching out about the Calm Radio app on your new PC. I see that you're able to play sound on Tidal but not on Calm Radio, so the audio system generally works on your PC, which is helpful information. Let's narrow down the cause for Calm Radio's no sound issue.

First, can you tell me if you hear any playback sound at all, like a loading noise or interface sounds, or is it completely silent? Also, have you checked the volume mixer in Windows while Calm Radio is playing, to ensure the app’s volume is not muted or turned down low?

Meanwhile, here is a step-by-step set of checks you can try to get sound working on Calm Radio:

1. Audio Output Check:
- Right-click the speaker icon in the system tray (bottom right) and select "Open Sound settings."
- Confirm the correct output device (speakers or headphones) is selected.
- Then, click “App volume and device preferences” (at the bottom) and ensure Calm Radio is not muted or set to zero volume there.

2. Application Settings:
- Open Calm Radio app settings and look for audio quality options. Sometimes lowering the streaming quality to “Normal” or “Mobile” helps with playback4.

3. Sound Drivers:
- Although Tidal works, it’s worth trying to update your sound drivers to the latest version via Device Manager
1. Press Windows key + X, select Device Manager.
2. Expand “Sound, video and game controllers.”
3. Right-click your audio device and choose "Update driver."
4. Follow prompts to search automatically for updated drivers.

4. Reinstallation:
- If issues persist, try uninstalling Calm Radio, then download and install the latest version from the official website to ensure a fresh, updated app7.

Does any sound come through during these steps? If you get stuck or no change happens, please let me know, and we can dig deeper!

Are you satisfied with these initial steps, or would you like me to guide you through them?