A browser with a sound input receives a sound sequence that can be used to access a content site. The sound sequence encodes characters according to a predetermined scheme. These characters are extracted by the browser and may either directly constitute the URL of the content site, or include a site code that can be translated into the content site URL by a service system. In this latter case, the browser contacts the service system to have the site code translated into the content site URL. Once in possession of the content site URL, the browser contacts that site. Where the encoded characters represent a site code requiring translation, the URL of the translation service system is preferably included in the set of encoded characters with the encoding being such that the URL encodes to a musical tune.