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salut,

is there a beeper on the VG5000? How is the sound generally produced? I've looked at the "Philips VG5000 Departement Formation Technique (09-84)" manual, it seems it can be rerouted into the tape interface and driven by the z80 cpu.

It sounds great. If you make something with this, I'll make an ambient tune for sure!

For the quattropic engine I get many glitches when I have some notes both on channel 3 and 4 (slide on ch3 and noise on ch4). If I remove one of those tracks, the glitches disappear so it's a conjunction of the two which are producing them. Maybe it's intentional (I don't really understand how the slide notes should behave btw), anyway it's very cool.

have you tried to send the files with the official TI program?

Yerzmyey made this: https://www.youtube.com/watch?v=6kcSdlOEizc
He said there is only the beeper (no AY), and some postprocessing. Maybe it's not true 1-bit because of the after effects, but anyway...

by the way, the sample tune sounds very good, I guess it's your composition...

very cool, I'm working on a tune with this new tool. Thank you!

hey, they're out! That's great. I'll listen to them soon. A quick browse reveals some good tunes!

I've posted some files there:

http://garvalf.online.fr/index.php?page=blog_2016-01-06

When I open the resulting wave in a sound editor, along with a wave from a real spectrum, my spectrum seems to be a bit slower (in a 2 minutes song, there is 1 second difference at the end)

I'll try later with engines having more bass, it would be more relevant for the sound. When I compare some songs with the fuse emulators and real spectrum, it's not very obvious which one is which. The real spectrum is somehow slightly warmer.

in fact this new version is just a "core", and like the firmware you can easily update it (just copy the new file on the sd card), so I have access to the latest version.

https://github.com/sorgelig/ZX_Spectrum-128K_MIST

I see this project seems to be interesting as well: http://zxuno.speccy.org/  The target price is 40 € for the fpga card and accessories (at the moment you have to solder everything yourself).

If you wish, I can record a song from your 1-bit Mechanistic album so you could hear how it sounds. It'd be interested to compare with original spectrum and vega as well. Do you have a vega recording of one of your songs?

it sounds very good. I didn't know Robbie Williams before to be honest. I'm sure you can grab some tricks from this cover for your own music I guess. Well done.