  This article discusses the feasibility and requirements for using Ginga as
the middleware of a Digital Radio System. Ginga was adopted by Brazil and
several other countries in Latin America as the standard for interactivity in
Digital TV (ISDB-T International). In this article the two digital radio
standards being considered for adoption by Brazil are briefly presented, a
discussion about the requirements for broadcast radio interactivity is
presented, and finally a prototype of a Ginga interactive application for
digital radio that was transmitted and received over the air using a digital
radio standard is detailed.
