Selected Playback Problems of Historical Grooved Media

Wallaszkovits N, Lechleitner F, Pichler H. Selected Playback Problems of Historical Grooved Media. In: AES Convention 130. Audio Engineering Society; 2011. Paper 8376. Available from: https://aes.org/publications/elibrary-page/?id=15843

@inproceedings{Wallaszkovits2011_15843,
  author = {Wallaszkovits, Nadja and Lechleitner, Franz and Pichler, Heinrich},
  title = {{Selected Playback Problems of Historical Grooved Media}},
  booktitle = {AES Convention 130},
  note = {Paper 8376},
  year = {2011},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15843}
}

TY  - CPAPER
TI  - Selected Playback Problems of Historical Grooved Media
AU  - Wallaszkovits, Nadja
AU  - Lechleitner, Franz
AU  - Pichler, Heinrich
T2  - AES Convention 130
M1  - Paper 8376
PY  - 2011
DA  - 2011/05/06
UR  - https://aes.org/publications/elibrary-page/?id=15843
PB  - Audio Engineering Society
LA  - en
AB  - The paper discusses some selected playback problems of the replay and high quality archival transfer of historical grooved media, like cylinders, instantaneous discs and early coarse groove records. The topics outline the problems of noise reduction and the compensation of the horizontal tracking angle by means of stereo playback and modification of the sum and difference signals. A comparison between existing noise reduction methods and analogue as well as digital phase and group delay compensation methods is given and discussed. Finally possible compensation methods for the change in noise spectrum caused by the groove velocity decrease at inner diameters with early discs are outlined. The authors propose a radius equalization in the digital domain by using a digital high pass filter without group delay distortion, using diameter dependent change of cut-off frequency.
ER  -