The Audiophile's Technical Guide to 78 Rpm, Transcription, and Microgroove Recordings

acoustic adjustment Amplitude Audio avoid band equalizer bass became Bell broadcasting broken cartridge channel characteristic Clean record cleaning collection Columbia condition constant correct Date Decca FFRR disc distortion Dynamic early effect Electric elliptical Engl equalization curves Equalizer Settings equipment example Fidelity File filter flat frequency Gramophone groove Guide Guidelines HF Notch high frequency improved jacket Jazz KHz rolloff Label maintenance material method microgroove records mode Mono Music needed Noise reduction Note obtain Orchestra Owl Multifilter Period pickup arm piece play Playback Curve playback equalization practical pre-emphasis range RCA Victor record reference remove reproduction Restoration result RIAA rolloff Series signal Society sound speed standard Stanton 500 stereo stylus surface Table tape Technical Tracking transcriptions treble tune by ear turnover turntable viii