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General Car Audio
Dsp, a must have?
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<blockquote data-quote="Jimi77" data-source="post: 8796885" data-attributes="member: 673702"><p>You don't need an RTA. You need test tracks. In particular you need a 20hz-20khz sine sweep and you'll hear the peaks and valley's in the response curve. You also need 1/3 octave banded pink noise. You play each 1/3rd octave track and adjust the corresponding EQ control to flatten the response. Always cut frequencies first and avoid boosting more than +3bd. </p><p></p><p>If you have a valley that doesn't respond well to boosting, then you either have a phase issues (ie the tweeter and midbass cancelling each other out at the crossover frequency) or a null caused by reflections, location or angle.</p></blockquote><p></p>
[QUOTE="Jimi77, post: 8796885, member: 673702"] You don't need an RTA. You need test tracks. In particular you need a 20hz-20khz sine sweep and you'll hear the peaks and valley's in the response curve. You also need 1/3 octave banded pink noise. You play each 1/3rd octave track and adjust the corresponding EQ control to flatten the response. Always cut frequencies first and avoid boosting more than +3bd. If you have a valley that doesn't respond well to boosting, then you either have a phase issues (ie the tweeter and midbass cancelling each other out at the crossover frequency) or a null caused by reflections, location or angle. [/QUOTE]
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Dsp, a must have?
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