Title :
A digital implementation of tape equalizers
fDate :
5/1/1994 12:00:00 AM
Abstract :
The paper presents a digital implementation of tape equalizers for analog audio tape playback. A digital IIR filter is applied to match the frequency response specified by NAB (National Association of Broadcasting). In this way, more accurate frequency response, higher signal to noise ratio and wider dynamic range can be easily achieved. Further signal processing in the digital domain is possible, and direct digital data transfer between equipment is easily achieved. The digital equalizer is constructed with a DSP board, and the test results are presented
Keywords :
audio signals; audio systems; audio tape recorders; digital circuits; digital filters; equalisers; frequency response; signal processing; DSP board; analog audio tape playback; digital IIR filter; digital implementation; direct digital data transfer; dynamic range; frequency response; signal processing; signal to noise ratio; tape equalizers; test results; Circuits; Digital signal processing; Equalizers; Equations; Frequency response; Magnetic heads; Operational amplifiers; Signal processing; Signal to noise ratio; Testing;
Journal_Title :
Consumer Electronics, IEEE Transactions on
