Google voice API https://texttospeech.googleapis.com/v1/voices doesn't have French voice.
fr-FR-Standard-A fr-FR-Standard-C fr-FR-Wavenet-A fr-FR-Wavenet-C fr-FR-Wavenet-D fr-FR-Wavenet-E
Google voice API https://texttospeech.googleapis.com/v1/voices doesn't have French voice.
fr-FR-Standard-A fr-FR-Standard-C fr-FR-Wavenet-A fr-FR-Wavenet-C fr-FR-Wavenet-D fr-FR-Wavenet-E
There are various French(France), French(Canadian) Male and Female voices while using Text-to-Speech in GCP. You can see this document that shows all the supported voices while using Text-to-Speech.
Additionally you can create a Custom voice while training a model, but for this you need to contact a member of the sales team.