Digital signal processing: Difference between revisions

'''Editing Digital signal processing''' ('''DSP''') ...

 

In order to understand the benefits and limitations of '''digital signal processing''' ('''DSP''') it is important to understand the distinction between continuous and [[discrete]] signal representations. In the Synth DIY world, much use is made of the terms [[analog]] and [[digital]] without any clear explanation of the very different assumptions that underpin those terms.

 

[[File:Domain Scope.png|frameless|600x600px]]

 

 

When selecting an ADC (Analog to Digital Converter), there are two main dimensions to consider.

For CD quality audio, the signal is represented as 16-bit samples per stereo channel, which should result in a SQNR of about 96 dB, which is considered to be significantly below the threshold of human perception. (There are a whole slew of reasons why high quality audio signals are sampled and processed at much higher resolutions such as 20- and 24-bits which will be discussed in a later section on signal arithmetic).

 

The second design dimension to consider is the rate at which your conversion is going to take place. The decisions you take here affect both the quality of the input signal and the quantity of processing you will be able to perform on it before presenting an output.

 

=== Output stage design ===

 

 

 

 

 

 

 

== External links ==

* [https://web.archive.org/web/20131102152222/http://dspwiki.com/index.php?title=Main_Page DSPWiki] The Digital Signal Processing (DSP) and Synthesis Wiki.