I've made two little mods for increase the volume of radio and gramophone without to change the sounds options:
for SH5 1.2 vanilla
http://www.gamefront.com/files/20005...dio_SH5_v2_zip
for SH5 1.2 with FX_Update_0_0_11_ByTheDarkWraith
http://www.gamefront.com/files/20007...pdate_0011_zip
All JSGME compatible.
The file is sh.sdl edited with Silent 3ditor at the line Music.Gramophone, on the right panel there is the percentage of the Volume (standard is 91% often too low).
Torpedo