Some users may have acquired a recent System-on-Chip PC, like a budget laptop with a Celeron N4020 CPU and emmc storage. While these units make excellent Linux machines, audio can be a problem. Intel has replaced their traditional snd_hda_intel driver with the Sound Open Firmware system. It requires the Debian package firmware-sof-signed plus additional drivers compiled into the kernel.
Each processor family (Geminilake, Stoneyridge, etc.) uses its own drivers. The Linux 6.1 kernel contains the source code for these kernel modules, but Debian has only enabled some of them (possibly because the other drivers are incomplete - speakers work but headphones do not). Depending on your model, you may or may not have working audio OOTB.
This is not a deal-breaker situation. Audio on these machines may be simpler with a USB headset or USB sound card adapter and analog headphones, particularly for video chatting with a mic. But it would be nice to also have the internal speakers working.
Luckily, some platforms like Void Linux have enabled more of these drivers. By incorporating the Void 6.1.4_1 kernel into Debian Live, you may get basic audio.
The package here contains three files: vmlinuz1, initrd1.xz, k-6.1.4_1.squashfs
1. Drop these into the "live" folder of your Deblive install along with the usual 01-filesystem.squashfs.
2. Reboot.
3. Make a network connection and get the package: firmware-sof-signed
4. Reboot.
5. Run the Sound Card Selector. You should see a card with a name like sof-glkda7219max. Make it the 0-0-0 ALSA default.
6. Test with an audio player.