dbx Pro AUTOVELOCITY DYNAMICS AND THE DBX 160SL manual

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Table of contents for the manual

  • Page 1

    AutoV elocity™ Dynamics and the dbx 160SL White P aper ¨[...]

  • Page 2

    Many audio compr essor s employ an “ A uto” mode to set the attack and r elease of the VCA so that the compressor will be w ell behav ed when used in a variety of situations such as compr essing vocals, piano, or program material. “W ell behaved” means that pumping and breathing ar e minimized and that dynamic distortion, caused by low freq[...]

  • Page 3

    adjusted too fast f or a particular application. In fact, most users find that the y use only the upper half (12:00 and c lockwise) of both the attac k and release controls f or 99% of their compression needs. Inappropriately f ast attack and release times can “che w up” a signal yielding unpleasant r esults. This is why w e have c hosen to lim[...]

  • Page 4

    AutoV elocityª Dynamics and the dbx 160SL White Paper - November 1998 Page 3 ¨ too fast and still hav e the quick response of the VCA needed to tame transient signals. This essentiall y means that AutoV elocity™ Dynamic circuitr y creates a fast “peak limiting” function which rides on top of a slower “compression” function. A utoV eloci[...]

  • Page 5

    Figur e 2. The g raph on the left sho ws the small step r elease curve of the 160SL in r esponse to a sine wa ve burst input with A VD cir cuitr y disengag ed. T he graph on the right sho ws the release curve of the 160SL to the same burst input with A VD circuitr y eng aged. Note the slo wer r elease time in the graph on the right. Figur e 3. T he[...]

  • Page 6

    Figur e 4. T he g r aph on the left sho ws the larg e step r elease cur ve of the 160SL in r esponse to a sine wa ve burst input with A VD cir cuitr y disengag ed. T he graph on the right sho ws the release curve of the 160SL to the same burst input with A VD circuitr y engag ed. Note the slope of the curves ar e essentially the same. AutoV elocity[...]

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    ¨ 8760 South Sandy Pkwy . Sandy , Utah 84070 Phone: (801) 568-7660 Fax: (801) 568-7662 IntÕl Fax: (219) 462-4596 Questions or comments? E-mail us at: customer@dbxpro.com or visit our World Wide W eb home page at: www .dbxpro.com A Harman International Company[...]