Transcription, translation and voice over are the events that take place in the entire voice over process. Delivering something in a dialog delivery or speech format is the transcription process.
Further, they are translated into various languages and are recorded by professional Voice over artists. VSoftServ have a voice over team that have the perfect dialect and modulation required for a voice over professional.
There will be no decline in quality when the voice over is done for various other languages from the original version.