ADD SOUND TO VIDEO!!! HELP?

Can you suggest me good video editing softwares? please help!?

• Hello! i want to make a video but when i import it to the program i do cut... i add a transition effect and then i import another video.. but the sound doesnt match! its singing from live performances and the sound is messed up and i cant fix it! i want the video to have its natural sound and not to move back and forth.. i used sony vegas, pinnacle studio , asv editor.. and also nero.. on nero the sound is good but because i want to combine many videos on this video that i create now (i want to make a mashup of all my videos ) .. on some of the videos i used pinnacle studio before but when i import them on nero the scenes are cut and its not good its like missing some scenes... i also noticed that when the software has the sound of the video individually the sound isnt good... but when is all together like nero is good.. can you please tell me what to do or suggest me some softwares that you think that the natural sound of my videos will not move? please help! i ve done everything but i cant fix it!

• Answer:

  Using Pinnacle Studio, put your audio on the timeline (recorded separately), lock it down, using the lock button on the right side of the line the audio sits on, on the side of the program. Then add and edit your video clips as you please above. If you video clips have any audio attached to them, silence or mute the audio, using the button, over to the right. I think your screwing the audio up by using the transitions. Transitions take time, Pinnacle Studio's program settings can control the length of transitions. You have to add that into the fact when figuring out the video. Need help more than this, contact me.