Thank you for the replies, @uli and @Dmian.
I'm using an Orange Pi Lite V1.1. Firmware revision is v0.90-177. Imaging software used: Etcher and Win32DiskImager, both using the inbuilt card reader and external card reader on a Dell E7450 laptop, as well as a Dell G3 3500 laptop.
My config file (after changing the default beep volume to 15 to see if they rectified the issue):
Trying SAY "Hello, world!", BEEP 15, PLAY "A1B1C1", or playing SHMUP yields no sound output over HDMI (I've since tried it on a couple more televisions).
I've since tried the three latest firmware builds, using a large number of configurations, to no avail (used both Etcher and Win32DiskImager on a Dell E7450 & Dell G3 3500 laptops - both using inbuilt and external card readers). I'm not good at soldering, nor am I averse to it either, but these soldering pads are at the upper limit of my finite soldering skills 🙂 Unfortunately, I do not have a 3.5MM audio pigtail, so I will have to order some in from Amazon. While I am there, I will see which other Orange Pi are available from stock within the United States and order one with an existing audio jack - if possible 🙂
Thanks again for developing this awesome little setup and for your help!!
Image of the solder pads for an audio jack:
Edit #2: Sleep deprivation is a nasty thing. I started reading through more threads and see there is a HELP command ( and assuming as much after seeing the json help files in the sys folder). I will try to go through them and document it as I go. It may even lead to a cure to the problem in the topic....or maybe I've got a lemon - that isn't terribly uncommon from what I've read this evening. In any case, I've ordered some 3.5MM audio jack pigtails, an Orange Pi PC for when I inevitably screw up the Orange Pi Lite soldering on it (I have mild essential tremors), and a high quality high output multi-port USB charger (something to power the OPI BE, original BE, Color Maximite, and Color Maximite 2...hopefully).