I'm not 100% familiar with the core, a possible option is to record the audio on the HDMI - I have an aux output on my HDMI-VGA converter - could work, but have not tried it. Incidentally, this new version (V2. Apple Newton MessagePad (H1000) Apple Mac Mini (2010) iPad 2 (16GB wifi.
Showed up on my CRT TV no problem, though way crisper than I recall with RF, haha. Both these games have been re-mastered by myself, the author, to run under the emulator, almost identically as they will on a real 16K ZX81. ZX80 with ZX81 conversion (early, vacuum formed case) shown here disassembled. Can run ZX81 programsdirectly from the DOS commandline, or by double-clicking a P-file in Windows9x/NT (so youdont have to type a LOAD '.' command inside the emulator). It was super easy to flip the video to 60 Hz. Runs any hi-res, semi-hi-res, mixedresolution, and low resolution ZX81 program.
On a side note, it was a trip seeing the "K" (keyword!) cursor show up and do those one key commands. of emulation classic computers like the commodore 64, zx81, zxspectrum.
The core would function as a full ZX81 at that point. Qnap releases qget ios app for remote download management on qnap nas monday. Was kind of hoping the audio output jack on the standard I/O board would produce the correct audio after a SAVE command, but it doesn't seem to do anything (at least not according to the meters on my Zoom recorder). Set screen colours white (Ace default), green or amber. Some features so far: 100 accurate Z80 emulation. I have the ADC adapter, but I guess that's "IN" only, right? So in theory if I had a saved program, I could hook up an audio playback device and play it back into that with that core with the LOAD "" command. Is a new (2012) emulator written by Richard Chandler which will emulate the Jupiter ACE.
I'm guessing it's not possible to save a program with the ZX81 core? There's not a whole lot of into on the github page:, so I wasn't sure.