My question is, if enobody tried yet to load progs directly from MP3 player to ZX81?
On Spectrum You need also an amplifier because signal from the MP3 player is too weak. So - does ZX81 need an amplifier too?
To use only ZX81 with a small player instead of huge hi-fi sets.
having said all that i don't use mp3 and rarley even use a real tape, when ZX81-ing i've always go a laptop near by and use that along witt wintzx to load progs
Hope that helps
Well, as for loading from PC, I use it too but I don't use laptops at all (maybe it's time to change my preferences) and I was thinking about some taking ZX81 to some parties and stuff, where taking huge PC (or big amplifier) would be a problem.
I considering also checking out some CD players.
Anyway I agree - probably at home I will use PC sound-card too.
As for bitrate, I presume that 192Kbps will be sufficient.
Thx again, guyz.
http://personal.auna.com/casariche/otla/otla1.htm (in Spanish)
The conversion isn't automatic, but it's easy to do. The project has had success with the Spectrum and clones, Amstrad CPC and MSX. The author has expressed interest in helping ZX81 users, and I've invited him to this forum.
I strongly recommend this to ZX81 users who don't have or don't want to use IDE interfaces, but would appreciate fast loading.
Some of the questions he has:
How precise are the ZX81 timings? Does it have contended memory problems like the Specrum?
What are the most common snapshot formats?
What is the recommended address for a loading routine?
I use this software-turbo on Spectrum for quite some time. I achieved about 19Kb per sec if I recall. But it doesn't work every time - and it likes *.z80 snaphots, not regular TAPs (a pity).
Anyway such a thing for *.p files would be really good.
That would be me.BrunoFlorindo wrote: I strongly recommend this to ZX81 users who don't have or don't want to use IDE interfaces, but would appreciate fast loading.
It's a nasty hacked-up board but it is only v1.0.. I'm sure I'd do a much better job of it now!
Details here including schematic and code:
I was being a bit cheeky before - this requires a loader too, plus expanded RAM in the 8-16k area.
I do have a design in my head which would use a microcontroller to DMA the data, which would indeed be plug and play..