No, it shouldn't affect anything. During export, the sound is included in the game resources as a mod, so the xdb file is only affected by the string

0DDC8CCB-CD23-479D-938A-FE06F27625BF

, which is essentially the name of the exported file. And this

is just the path used during export. But here's the question: Are you sure the export was successful? To check, you can go into the h5m archive, find the sound with the name above, and try playing it in an audio player.
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And yes, you know what format the links to xdb files are given in, right? You need to append the pointers to the end.