[Pharo-users] Pharo sound with SDL Library

Hello! I need to use the Pharo Sound over Ubuntu platform, but I couldn't get it work. I tryied sending the parameter vm-sound-OSS and vm-sound-ALSA to the vm but I get no results. I am now trying to use the SDL Library. I could initialize the sound SDL_Init(SDL_INIT_AUDIO), very similar to initializing video, but when trying to use the SDL_LoadWAV, it needs a SDL_AudioSpec data type and I do not know how to do it. I tried to use an Structure as parameter but with no result, I couldn't found any similar example to follow. I will appreciate any help or tips on this. Thanks in advance. Best regards, Mariano.