Is す devoiced in おすそわけ?


At [29s of this video](https://www.youtube.com/watch?v=OaIhIScRAVA&t=29s), it
sounds to me like おすそわけ is being said like oS_SOWAKE instead of oSUSOWAKE.

Both OJAD and Wiktionary don't indicate that there's any devoicing going on
with this word though, so I'm worried I just am mishearing this.

So is す sometimes (or always?) devoiced with this word?




I am fairly certain that there is a rise in pitch on the そ, which suggests
that the す is devoiced.

