http://www.mp3load.ws/mp3-dsp-processor/
Digital signal processing?
What does a DSP do in realtion to an mp3 player so far i have this:
The calculations carried out during the maths stage effect may affect many properties depending on the system it is included in. Digital signal processing works using “floating point” numbers instead of integer values one benefit of this is no overflow also it makes the digital signal processor extremely fast.
With respect to a Mp3 player the features used by the digital signal processing is the filtering features as well as providing different equalization settings if the Mp3 player provides this functionality. The digital signal processor may also be in charge of running an LCD display (with updated track and artists all which can be stored as small indexes before the main bulk on an Mp3 file
what else should i add?
The DSP chip is basically a microprocessor with built-in floating point maths routines. It reads the MP3 data from memory, decompresses it to create the audio signal in digitised form, performs audio effect processing (filtering, equalisation, etc.) and finally converts it into analog signals which are sent to the output amplifier.
The DSP chip may also do some more conventional microprocessor type tasks such as registering button presses, interfacing with a computer and driving the display.
Denon AVR-685S 6.1 CH A/V Home Theater Receiver – AVR685S
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