importing custom sounds

[Impreza]

if someone can tell me how goldwave converts channels that be great. i already converted the file i want ( in this case a star wars blaster rifle) that i took from another game (x-wing vs tie fighter) and did the adpcm 22.05hz conversion. now it tells me there is an incorrect number of channels. i am replacing the pistol sound effect. please no i don't know, heres a link to goldwave, ask someone else. none of that. if you know the answer, or think you might know, please respond. thanks for the time,
Impreza

[alfaalex101]

My HMT3.5 is giving me errors when I click a sound file! Anyways I hope you get an answer because it would really help me to!