17. A method for obtaining and rendering audio based on text in an electronic book (eBook), the method comprising: sending, from an eBook reader device, a request to download the eBook; receiving, at the eBook reader device, the eBook, a supplemental pronunciation database, and specified voice information for synthesizing speech in a specified voice; synthesizing a first speech for a first portion of text in the eBook based at least in part on a pronunciation from the supplemental pronunciation database for portions of text which have pronunciations in the supplemental pronunciation database; synthesizing a second speech for a second portion of text in the eBook based at least in part on a pronunciation from a default pronunciation database for portions of text which do not have pronunciations in the supplemental pronunciation database; synthesizing a third speech for a third portion of text in the eBook based at least in part on the specified voice for portions of text which are specified to be synthesized with the specified voice; and synthesizing a fourth speech for a fourth portion of text based at least in part on a default voice for portions of text which do not have any specified voice.
17. A method for obtaining and rendering audio based on text in an electronic book (eBook), the method comprising: sending, from an eBook reader device, a request to download the eBook; receiving, at the eBook reader device, the eBook, a supplemental pronunciation database, and specified voice information for synthesizing speech in a specified voice; synthesizing a first speech for a first portion of text in the eBook based at least in part on a pronunciation from the supplemental pronunciation database for portions of text which have pronunciations in the supplemental pronunciation database; synthesizing a second speech for a second portion of text in the eBook based at least in part on a pronunciation from a default pronunciation database for portions of text which do not have pronunciations in the supplemental pronunciation database; synthesizing a third speech for a third portion of text in the eBook based at least in part on the specified voice for portions of text which are specified to be synthesized with the specified voice; and synthesizing a fourth speech for a fourth portion of text based at least in part on a default voice for portions of text which do not have any specified voice. 24. The method of claim 17 , further comprising storing the eBook, the supplemental pronunciation database, and the specified voice information on the eBook reader device.