Look How Times Have Changed

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The majority of audio content is delivered to the end-user over the Internet. Music is either streamed from online subscription through on-demand services such as Pandora in the US or Spotify in Europe. Alternately, music is purchased from online music stores such as iTunes and stored locally on a computer or portable network player in a compressed form.

Articles appearing in this newsletter: The Paradigm of Tomorrow

Paradigm of tomorrow
This paradigm shift in usage model imposes a challenge on designers of tomorrow audio equipment. Still, audio devices need to amplify and process the signal for audio reproduction – however, they must also connect to the source via a wired or wireless connection and often decompress content on the fly.

Also, as the signal source lies outside the system, designers take the opportunity to integrate connectivity, speakers, and amplifiers in the same cabinet. In the new paradigm, the source-to-sound signal path involves all or some of the following steps:

1.    Connectivity: Ethernet, USB host and device,    SDIO, WIFI, Bluetooth)
2.    Decompression (MP3, AAC, WMA)
3.    Digital Signal Processing (Equalization, Volume control, ect.)
4.    Digital-to-Analog Conversion
5.    Amplification
6.    Acoustic Reproduction

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