his/her voice
Sa voix est sur le ferry, mais ce n'est pas la source.
Her voice is on the ferry, but it isn’t the source.
— The Dark Knight : Le Chevalier noir (2008)
Je pensais retrouver sa voix au café.
I thought I would find her voice again at the café.
— Happy Together (1997)
I recognize his voice.
— Oncle Boonmee (celui qui se souvient de ses vies antérieures) (2010)
Tu es sûre que c'était sa voix ?
Are you sure that was his voice?