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DSP tuning for below dummy level
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<blockquote data-quote="just call me KeV" data-source="post: 8805605" data-attributes="member: 656095"><p>I took a couple screen shots from the app and I will attempt to decribe each shot in detail and explain what they mean. This first shot is the first part of the setup. Each speaker is assigned a channel. This channel will be used to adjust that speaker and that one only.</p><p>[ATTACH=full]41804[/ATTACH]</p><p></p><p>Crossover adjustment is going to take a range of freq. that you can use to adj. where the speaker will play in the frequency spectrum between 20 hz- and 20khz. This is the human baseline for hearing. If it sas HPF (high pass filter) it means that anything lower than that will not play through the driver. If it is LPF (low pass filter) it is the exact opposite. Nothing higher than that freq. will be allowed to play. </p><p>If you use a bandpass crossover it will take a small frequency range and it will have a filter on both ends.</p><p>The "filters" we use are dictated by slope. We can adjust them in 6, 12, 18, and 24 db per octave So let's take the two octaves of 20 and 50 hz. If our crossover is using a 6db slope the roll off or volume drop playing between the two is very gradual. If it is 24 db the dropoff is much sharper. </p><p>[ATTACH=full]41805[/ATTACH]</p><p></p><p>Equalization. This can really make a system shine. It mentions that the dsp has the ability to adjust 31 bands which means that we can adjust each octave in the freq. spectrum. 31. Human hearing is centered around 2-3khz. One of the links I showed you has a list of where instruments play to give you a better idea. When we adjust an eq we always want to cut frequencies and never add. </p><p></p><p>[ATTACH=full]41806[/ATTACH]</p><p></p><p>Delay/Time alignment. We use this to set when the sound of the speaker arrives to us. This is useful when you hav one midrange that is closer to you than the other one. We used to solve this problem back in the day by putting midrange and tweeters in the kicks. </p><p>Take a ruler and measure the distance between the drivers and passenger footwell. It may be less than 6 inches. Now measure from your drivers side A pillar and the passenger A pillar. See the difference. This is why we use time alignment. With that even with the wild difference in distance we can have the sound arrive at our ears at the same time.</p></blockquote><p></p>
[QUOTE="just call me KeV, post: 8805605, member: 656095"] I took a couple screen shots from the app and I will attempt to decribe each shot in detail and explain what they mean. This first shot is the first part of the setup. Each speaker is assigned a channel. This channel will be used to adjust that speaker and that one only. [ATTACH type="full"]41804[/ATTACH] Crossover adjustment is going to take a range of freq. that you can use to adj. where the speaker will play in the frequency spectrum between 20 hz- and 20khz. This is the human baseline for hearing. If it sas HPF (high pass filter) it means that anything lower than that will not play through the driver. If it is LPF (low pass filter) it is the exact opposite. Nothing higher than that freq. will be allowed to play. If you use a bandpass crossover it will take a small frequency range and it will have a filter on both ends. The "filters" we use are dictated by slope. We can adjust them in 6, 12, 18, and 24 db per octave So let's take the two octaves of 20 and 50 hz. If our crossover is using a 6db slope the roll off or volume drop playing between the two is very gradual. If it is 24 db the dropoff is much sharper. [ATTACH type="full"]41805[/ATTACH] Equalization. This can really make a system shine. It mentions that the dsp has the ability to adjust 31 bands which means that we can adjust each octave in the freq. spectrum. 31. Human hearing is centered around 2-3khz. One of the links I showed you has a list of where instruments play to give you a better idea. When we adjust an eq we always want to cut frequencies and never add. [ATTACH type="full"]41806[/ATTACH] Delay/Time alignment. We use this to set when the sound of the speaker arrives to us. This is useful when you hav one midrange that is closer to you than the other one. We used to solve this problem back in the day by putting midrange and tweeters in the kicks. Take a ruler and measure the distance between the drivers and passenger footwell. It may be less than 6 inches. Now measure from your drivers side A pillar and the passenger A pillar. See the difference. This is why we use time alignment. With that even with the wild difference in distance we can have the sound arrive at our ears at the same time. [/QUOTE]
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DSP tuning for below dummy level
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