Spent some time trying to get work Delfina flipper connected to Amiga 1200 clockport under AmigaOS 4.0 Classic.
Installed AHI drivers version 6.0 (AudioModes/AHI) from m68k-amigaos-ahidrv
Installed delfina.library 4.16 B48 from
http://www.jschoenfeld.com/ (looks like latest)
Installed binary utils (DelfMem from original floppy, DelfInit from aminet).
Installed ahi-handler_os4 from aminet
After some experiments found, that card work only if delfina.library added to compatibility mode (no JIT emulation). Worked more/less stable, right now playing mp3 about 2 hour nonstop.
Without disabling JIT for delfina.library - system hangs in 5-30 seconds after initialization (once i succeed start player very quick and get about 3-5 seconds of audio before it hangs).
(I check about 6-8 versions delfina.library, include some old betas and patched, and looks like latest from site is more stable)
AmigaOS 4 have two emulators - Petunia (JIT), fast and dirty and BlackBox, slow, but accurate.
The bad news (i think that) without JIT delfina works slow.
We have 4 audio modes:
- 16 bit mono
- 16 bit stereo
- HiFi 16 bit mono
- HiFi 16 bit stereo.
And looks like there not enough speed to use some more, than "mono".
I use TuneNet for playing local mp3 and network stream (both 128kbps).
- 16 bit mono - Local: cpu ~70%, no clipping; Network: cpu ~80%, no clipping
- 16 bit stereo - Local: cpu ~95%, almost no clipping; Network: cpu ~95% almost no clipping.
- HiFi 16 bit mono - Local: cpu ~80%, no clipping; Network: cpu ~80% no clipping.
- HiFi 16 bit stereo.- Local: cpu >100%, clipping; Network: cpu >100% clipping.
And even in mono mode there almost nothing that you can do - open any window, move any window, start any program - it always start to clipping.
I use some magazines/music disc, than use AHI, and there same situation, almost always it clipping.
For example paula in "HiFi 14 bit stereo ++ calibrated" plays mp3 with cpu load about ~45% and together i can use Amiga almost as usual, with no sound clipping. And sound quality quite good.
Yes, you can save some cpu by decreasing frequency from default 48kHz to 32-27Khz, but then you lost any sound difference with paula (Delfina - Hifi 16 bit Stereo with 27Khz still eat 85-90% cpu!)
So looks like no reason to install Delfina Flipper for AmigaOS 4
Ideas, comments, suggestions?