Parametric Control of Filter Slope Versus Time Delay for Linear Phase Crossovers

Baird J, Jackson B, McGrath D. Parametric Control of Filter Slope Versus Time Delay for Linear Phase Crossovers. In: AES Convention 119. Audio Engineering Society; 2005. Paper 6565. Available from: https://aes.org/publications/elibrary-page/?id=13302

@inproceedings{Baird2005_13302,
  author = {Baird, Justin and Jackson, Bruce and McGrath, David},
  title = {{Parametric Control of Filter Slope Versus Time Delay for Linear Phase Crossovers}},
  booktitle = {AES Convention 119},
  note = {Paper 6565},
  year = {2005},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13302}
}

TY  - CPAPER
TI  - Parametric Control of Filter Slope Versus Time Delay for Linear Phase Crossovers
AU  - Baird, Justin
AU  - Jackson, Bruce
AU  - McGrath, David
T2  - AES Convention 119
M1  - Paper 6565
PY  - 2005
DA  - 2005/10/06
UR  - https://aes.org/publications/elibrary-page/?id=13302
PB  - Audio Engineering Society
LA  - en
AB  - Linear phase crossover filters are a powerful tool for sound system designers. They deliver a near-ideal response with ruler-flat pass band, steep transition slopes and adjustable stop-band rejection – all with zero phase shift. Transition slopes can be matched to a target response, for example 24 dB or 48 dB per octave, and can also be arbitrarily specified while still retaining a perfect-reconstruction characteristic. Practical application of linear phase crossovers requires manipulation of center frequency, transition slope and stopband rejection. A graphical user interface is described which gives users new degrees of freedom in defining linear phase filter parameters. By setting bounds for parameters such as delay, a user can continuously vary other parameters while the graphical user interface optimizes the resulting filter. This paper presents new parameters for optimization of a target transition slope within a bounded delay parameter, providing fast and efficient user controls for working with and adjusting the crossover filters in real time.
ER  -