I agree with the beep being a bit too loud or a bit too harsh in the context of its repetition. The first time I played, I heard the fast beep-sound, and since I had 0 electricity, I thought it was a warning sound. When I collected the first pack, the beep frequency changed to a lot slower. I spent the next 5-10 minutes just randomly flying around having no thought of following the beep at all. Haha. xD
When I realised the echo was something to follow, the game immediately became a lot more fun! However, sadly I'm very very bad at playing these kinds of games and never managed to get more than one or two packs before smashing into an asteroid. :(