Your question is really far too vague to allow we fellow-users to offer very much in the way of help to you.
First, please read this post and give us ALL the information requested there.
Second, have you read the built-in Help files? If so, what specific problem do you need help with? With much more input from you we may be able to offer assistance to you.
What is perfect sound ? even cd 44.1 khz is not perfect , pro say they can hear difference between 44.1 khz and 96 khz lp has no bass and probably lacks in quality Its a joke scam to offer 128 khz compressed mp3 , with new modern technology the sound should be better not worse on the internet Why not use FLAC if companies want's to save space ?
I dont know how the sound quality in magix info is , compression rate and so on but for example soundcloud , spotify , youtube is not good , why make supersound in magix music maker or samplitude if companies destroy it afterwards ? correct me if i'm wrong
it's a scam to convert music to low bitrate and ask for money to upload music , even if we learn to create high quality sound , who will keep and preserve the quality when you upload it ?