Digital Product Details

Small Signal Audio Design 2nd Edition

This Book Deals With Small-Signal Audio Design; The Amplification And Control Of Audio In The Analogue Domain, Where The Processing Is Done With Opamps Or Discrete Transistors, Usually Working At A Nominal Level Of A Volt Or Less. It Constitutes A Major Update Of The First Edition, Being Some 50% Longer. ‘Small-Signal Design’ Is The Opposite Term To The ‘Large-Signal Design’ Which In Audio Represents Power Amplifiers Driving Loudspeakers, Rather Than The Electricity Distribution Grid Or Lightning. There Is Unquestionably A Need For High-Quality Analogue Circuitry. For Example, A Good Microphone Preamplifier Needs A Gain Range From 0 To 80 DB If It Is To Get Any Signal It Is Likely To Encounter Up To A Workable Nominal Value. There Is Clearly Little Prospect Of Ever Being Able To Connect An A-To-D Converter Directly To A Microphone. The Same Applies To Other Low-Output Transducers Such As Moving-Coil And Moving-Magnet Phono Cartridges. If You Are Starting At Line Level, And All You Need Is A Simple But High-Quality Tone Control, There Is Little Incentive To Convert To Digital Via A Relatively Expensive ADC, Perform The Very Straightforward Arithmetic Manipulations In The Digital Domain, Then Go Back To Analogue Via A DAC; There Is Also The Need To Implement The Actual Controls As Rotary Encoders And Have Those Overseen By A Microcontroller. All Digital Processing Involves Some Delay, Because It Takes Time To Do The Calculations; This Is Called The Latency And Can Cause Serious Problems If More Than One Signal Path Is Involved.
  • SKU: 978-1-315-88537-7
  • File Size: 15.89 MB
  • File Created: 2021-08-19 12:52:24
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