Hola melómanos,

Considero que el asunto de la opción de audio que incorpore la nueva generación de DVDs de alta resolución no debe ser ajeno a esta sala de música.

Sin embargo, como en el Foro hay varios hilos dispersos en varias salas en los que se toca este tema he pensado que podíamos concentrar aquí nuestros comentarios e informaciones, al menos en lo que se refiere al aspecto audio de dichos formatos.

Empiezo transcribiendo la respuesta que da Robert Harley, editor jefe de la prestigiosa revista americana The Absolute Sound a una pregunta de un lector sobre el tipo de audio que soportarán estos formatos (aparece en el supplemento A/V correspondiente a octubre 2005):

HD DVD and Blu-ray players will deliver high-resolution audio output (DTS-HD and Dolby Digital Plus) on an HDMI output, which will connect to an HDMI input (Version 1.3) on the next generation of A/V receivers. To hear the new high-resolution soundtracks without waiting for an HDMI-compliant AVR, you can simply connect the new players' eight analogaudio outputs to the 7.1-channel (or 5.1-channel) analog input on your existing receiver.

All HD DVD and Blu-ray players will include a down-converter to transform Dolby Digital Plus to a conventional Dolby Digital signal that is compatible with existing decoders. The signal will always be at the highest data rate Dolby Digital supports (640kbs, higher than the 448kbs maximum on DVD), and appear on the familiar coaxial and TosLink optical jacks.

DTS-HD contains a core DTS signal of 1.5Mbs that is compatible with existing decoders. The additional information that makes the signal high-resolution is contained within an "extension" to this core signal. Existing decoders ignore the extension, but newer ones will process this additional datastream to reconstruct the high-resolution signal.

Both Dolby Digital Plus and DTS-HD are scalable formats, providing resolution all the way from today's data rates to full multichannel audio with perfect bit-for-bit accuracy to the source.

Saludos