I would pronounce either name as โ[name]Rozlin[/name]โ or โ[name]Rose[/name]-linโ
middle names:
[name]Roselyn[/name] [name]Vivia[/name] / [name]Rosaline[/name] [name]Vivia[/name]
I also like [name]Vala[/name], Valetine/[name]Valentina[/name], [name]Valora[/name]
The most common pronunciation of [name]Rosalind[/name] is โRAH-ze-lindโ (more โzโ than an โsโ). To me, this is the most authentic spelling. [name]Roselyn[/name] just looks like a smoosh of two names ([name]Rose[/name] and [name]Lynn[/name]) so it would probably be โ[name]ROSE[/name]-linโ. If you want the โleenโ ending, I would suggest you use the French [name]Rosaline[/name] or the Irish [name]Rosaleen[/name]. Many โVโ middle names would sound long with [name]Rosalind[/name].