Voice-controlled data system comprising: - a storage medium for storing media files, the media files comprising associated file identification data for allowing the identification of the media files, wherein the file identification data are part of metadata where further information of the media file is stored, the file identification data comprising phonetic data including phonetic information corresponding to the file identification data, wherein the file identification data comprise at least a first phonetic transcription of a title of the file and an artist of the file and a second phonetic transcription of the title of the file and the artist of the file, wherein the different phonetic transcriptions of the title and the artist are generated by applying pronunciation rules of different languages - a static vocabulary list comprising phonetic transcriptions of a static vocabulary of a voice command which is independent from the media file selected by the voice command, - a phonetic data extraction unit configured to extract the first phonetic transcription and the second phonetic transcription from the file identification data, - a media player for playing the media files - a speech recognition unit configured to receive the voice command from the user which comprises the static vocabulary and a variable vocabulary, the variable vocabulary depending on the content of the media file and include at least one of the artist and the title of the file, wherein the speech recognition unit is configured to generate a control command by comparing the voice command to the phonetic transcriptions of the static vocabulary and of the variable vocabulary including the first phonetic transcription and the second phonetic transcription, wherein the media player selects the media file based on the control command received from the speech recognition unit. - a storage medium for storing media files, the media files comprising associated file identification data for allowing the identification of the media files, wherein the file identification data are part of metadata where further information of the media file is stored, the file identification data comprising phonetic data including phonetic information corresponding to the file identification data, wherein the file identification data comprise at least a first phonetic transcription of a title of the file and an artist of the file and a second phonetic transcription of the title of the file and the artist of the file, wherein the different phonetic transcriptions of the title and the artist are generated by applying pronunciation rules of different languages - a static vocabulary list comprising phonetic transcriptions of a static vocabulary of a voice command which is independent from the media file selected by the voice command, - a phonetic data extraction unit configured to extract the first phonetic transcription and the second phonetic transcription from the file identification data, - a media player for playing the media files - a speech recognition unit configured to receive the voice command from the user which comprises the static vocabulary and a variable vocabulary, the variable vocabulary depending on the content of the media file and include at least one of the artist and the title of the file, wherein the speech recognition unit is configured to generate a control command by comparing the voice command to the phonetic transcriptions of the static vocabulary and of the variable vocabulary including the first phonetic transcription and the second phonetic transcription, wherein the media player selects the media file based on the control command received from the speech recognition unit.