36 lines
889 B
PHP
36 lines
889 B
PHP
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<?php
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// http://enjoythemusic.com/diy/0311/crossover.htm
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use Scientific\Frequency;
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use Scientific\Impedance;
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require_once __DIR__ . '/../vendor/autoload.php';
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$frequency = new Frequency(unit(9000));
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$tweeter = new Driver(new Impedance(unit(8)));
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$woofer = new Driver(new Impedance(unit(4)));
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$crossover = new FirstOrderTwoWayCrossover($frequency);
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$capacitor = $crossover->getTweeterCapacitor($tweeter);
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$inductor = $crossover->getWooferInductor($woofer);
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printf(
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'First order 2-way crossover @ %s (slope = %s):%s',
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$crossover->getFrequency(),
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$crossover->getSlope(),
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PHP_EOL
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);
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printf(
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' - %s capacitor in series with %s tweeter%s',
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$capacitor->getCapacitance(),
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$tweeter->getImpedance(),
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PHP_EOL
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);
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printf(
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' - %s inductor in series with %s woofer%s',
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$inductor->getInductance()->format('milli'),
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$woofer->getImpedance(),
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PHP_EOL
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);
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