![]() |
[PROBLEM] Getting 24 bit audio to HDMI - Printable Version +- Moode Forum (https://moodeaudio.org/forum) +-- Forum: Audiophile (https://moodeaudio.org/forum/forumdisplay.php?fid=32) +--- Forum: Sound quality (https://moodeaudio.org/forum/forumdisplay.php?fid=34) +--- Thread: [PROBLEM] Getting 24 bit audio to HDMI (/showthread.php?tid=6105) |
Getting 24 bit audio to HDMI - oomzay - 01-05-2024 My Onkyo TX-SR875 receiver is capable of 24 bit audio however "aplay" is reporting, and playing only U8 and S16_LE to it. Code: $ aplay -D hw:b1,0 /dev/zero --dump-hw-params How do I get 24 bit to the HDMI interface? I see this in /boot/config.txt: Code: hdmi_drive=2 RE: Getting 24 bit audio to HDMI - Nutul - 01-05-2024 (01-05-2024, 05:19 PM)oomzay Wrote: My Onkyo TX-SR875 receiver is capable of 24 bit audio however "aplay" is reporting, and playing only U8 and S16_LE to it. Searching the web lead me here. You may want to read from the marked post downwards; it seems to be resolved applying what writes there... (I didn't follow the links with the possible solution, though) https://github.com/raspberrypi/linux/issues/4204#issuecomment-1065892284 RE: Getting 24 bit audio to HDMI - oomzay - 01-05-2024 @Nutul, Thanks. I found that article too, but was secretly, really, really hoping there was a simpler answer because much of it is maamajumbo to me at this point! I will go back there if no simpler/more contemporary solution shows up before long. RE: Getting 24 bit audio to HDMI - Nutul - 01-05-2024 (01-05-2024, 08:08 PM)oomzay Wrote: @Nutul, Thanks. I found that article too, but was secretly, really, really hoping there was a simpler answer because much of it is maamajumbo to me at this point! I will go back there if no simpler/more contemporary solution shows up before long. Since that solution comes from people messing around with Raspi OS I doubt there is a "simpler" solution... RE: Getting 24 bit audio to HDMI - Tim Curtis - 01-05-2024 AFAIK the HDMI implementation on RaspiOS Bullseye only supports 16/48. On Pi5/Bookworm using an HDMI connection to my Yammy AVR and running the ALSA speaker-test utility it looks like up to 8 channels at 24/192K is supported although the exact bit depth is not reported in ALSA hw_params, instead it lists: Code: format: IEC958_SUBFRAME_LE RE: Getting 24 bit audio to HDMI - oomzay - 01-11-2024 Thanks for the tips. I am now playing with bookworm to see if that solves 24bit audio/HDMI. I don't know if REW (electrical-level) testing would measure the difference objectively but I will report back once I receive second-hand Onkyo TX-NR905 AVR which has an audio format display that I can hopefully trust. (as well as an extra 10W/per channel, which the various Linn speakers I have just eat for breakfast ![]() |