I've copied the PC files from Dune II v1.07 into the data directory of the Dune2 game. Unfortunately I can't seem to make the sound work.
I've tried fiddling with the opendune.ini file, and it doesn't matter whether I select camdmidi to 1 or 0. There's no sound in the intro or the game, and random clips of speech and sound effects play very intermittently (mostly silence) during the game.
How can I fix this problem?

I've managed to get the speech (although it runs very slowly) and some in-game sounds by configuring the AHI prefs for Unit 0. But I still can't get any music. Do I need to configure the AHI prefs for the Music Unit? Or am I missing something else?

Hello, this is the following .ini file I use with OpenDune 0.9.014 and the music works:

; copy/rename this sample file to «opendune.ini» in the desired location
; and edit it to suit your preferences.
; Lines starting with a semi-colon ';' are comments
[opendune]
; supported languages are : english, french and german
;language=french
; directory where the Dune 2 data files are :
datadir=data
; directory for save games :
;savedir=data
; «Zoom» factor (from 1 to 4)
scalefactor=2
; Rescaling filter availables : nearest (default), scale2x
scalefilter=nearest
; Start OpenDUNE fullscreen if possible
fullscreen=0
; Maximum frame rate (default is 60)
framerate=60
; set camdmidi=1 to enable CAMD MIDI music output
camdmidi=1
; set mt32midi=1 if you output music to a MT-32 device or compatible
; default setting is for GeneralMidi music (Roland SC55)
;mt32midi=1
; Path to MT32 ROMs (needed when built with munt library)
;mt32rompath=/home/user/mt32roms
; Game behaviour options :
dune2_enhanced=1
;startport_unit_cap=1
; DEBUG options :
;debug_game=1
;debug_scenario=1
;debug_skip_dialogs=1
;debug_log_game=1

AmiKit
I've found the problem. It's that AHI isn't emulated in the Raspberry Pi version of Amikit. That explains it. Hopefully a future version will emulate AHI. Meanwhile I can still play the actual Amiga Dune II game via WHDLoad.

Hello, Raspberry Pi edition supports AHI. Check the AmiKit:Prefs/AHI and try some different mode there.