Publication: Research - peer-review › Article in proceedings – Annual report year: 1986
A new principle for an all digital preamplifier and equalizer, to be used together with a compact disc player, is described. The principle makes it possible to obtain an arbitrary gain transfer function together with a linear phase. The gain can be varied 20 dB from point to point, when specified on a logarithmic frequency axis with 30 divisions from 20 Hz to 20 kHz. The deviation in the passbands is max. 0. 2 dB. Taking advantage of the digital signal from the preamplifier, a high-efficiency power amplifier can be developed. A prototype of the preamplifier built with commercially obtainable components has shown promising results.
|Title||Audio Engineering Society Preprint : Presented at the 80th Convention|
|Publisher||Audio Engineering Society|
|Period||04-03-86 → 07-03-86|
Paper no. 2315
- Amplifiers, audio frequency;, Amplifiers, power type, Circuits, power supply - applications, Audio equipment, Data conversion, digital to analog, High efficiency power audio amplifier, Digital preamplifier, Control of power supply, Conversion from digital to analog signal, Switch-mode power supply.
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