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Ford Raptor Audio/Video/Electronics Forum [GEN 2]
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<blockquote data-quote="dhmcfadin" data-source="post: 1467095" data-attributes="member: 27229"><p>I sure hope people don’t take the advice above about not utilizing a dsp in a vehicle. All of the reasoning above has absolutely nothing to do with why we use a dsp in the first place. In a concert environment or home audio environment, a dsp is not used to localize sound left and right. Speakers in a room are generally placed in a symmetrical position. Level matching and time alignment are not as necessary. A dsp in a concert/home environment is to correct for the environment from an EQ perspective. Making one speaker louder than the other or changing time alignment does change the tone of a speaker in a symmetrical environment. EQ affects the tone of a speaker. No speaker in the history of speakers has ever played flat out of the box. Not even in a anechoic chamber. Don’t care what environment a speaker plays in, EQ is absolutely crucial. To say being left or right of the center image at a concert means eq or a dsp isn’t necessary is ignorance at its finest. Imaging at a concert means nothing. EQ is what matters. That’s what sound engineers do. They correct for the acoustical environment to ensure a speaker is able to properly represent the music being played. A concert/room environment is generally free of obstacles between the listener and the speaker. No matter where you stand, you will always be able to localize left, right, and center acoustical notes.</p><p></p><p>In a vehicle, it’s a completely different conversation. I don’t care how nice of equipment you buy, if you aren’t willing to properly tune it, you are literally throwing money away. In a vehicle, we not only need to address the EQ of each speaker (which out of the box is exponentially worse in a vehicle) we also correct for the variance in acoustical materials and their effects on the overall frequency response, non-symmetrical cabin environment, non-symmetrical speaker placement, and the change in acoustical crossover behavior vs electrical. Other than EQ, there is absolutely no relation as to why we use a dsp in a concert/home environment vs in a vehicle environment. Unlike a concert/home environment, in a vehicle, level matching, time alignment, and acoustical crossover accuracy play a major role in tonality and localization. Not using a dsp creates a wall of sound. Using a dsp creates a stereo image which allows a listener to localize just like in a concert/home environment. It allows each speaker to play equal to one another. It allows each speaker to have the tonality of one another. It allows each speakers eq and acoustical crossover point to match one another. In a vehicle, when you set a highpass crossover point at 3200hz, that speaker does not actually cross at 3200hz. In fact, two identical speakers placed on opposite sides of the vehicle will have completely different acoustical crossover characteristics. The reason for this is due to a vehicles environment. A dsp allows you correct for the multiple of variables that wreak havoc on even the nicest stereo equipment. The people posting above that oppose a dsp in a vehicles environment have never experienced what a real high fidelity system sounds like nor do they understand the purpose of a dsp. It’s not their fault but as the saying goes, ignorance is bliss. If y’all want more reasoning, email me. I professionally consult and design high fidelity vehicle audio systems and I professionally tune digital signal processors.</p><p></p><p>Dom</p><p><a href="mailto:dhmaudiotuning@gmail.com">dhmaudiotuning@gmail.com</a></p></blockquote><p></p>
[QUOTE="dhmcfadin, post: 1467095, member: 27229"] I sure hope people don’t take the advice above about not utilizing a dsp in a vehicle. All of the reasoning above has absolutely nothing to do with why we use a dsp in the first place. In a concert environment or home audio environment, a dsp is not used to localize sound left and right. Speakers in a room are generally placed in a symmetrical position. Level matching and time alignment are not as necessary. A dsp in a concert/home environment is to correct for the environment from an EQ perspective. Making one speaker louder than the other or changing time alignment does change the tone of a speaker in a symmetrical environment. EQ affects the tone of a speaker. No speaker in the history of speakers has ever played flat out of the box. Not even in a anechoic chamber. Don’t care what environment a speaker plays in, EQ is absolutely crucial. To say being left or right of the center image at a concert means eq or a dsp isn’t necessary is ignorance at its finest. Imaging at a concert means nothing. EQ is what matters. That’s what sound engineers do. They correct for the acoustical environment to ensure a speaker is able to properly represent the music being played. A concert/room environment is generally free of obstacles between the listener and the speaker. No matter where you stand, you will always be able to localize left, right, and center acoustical notes. In a vehicle, it’s a completely different conversation. I don’t care how nice of equipment you buy, if you aren’t willing to properly tune it, you are literally throwing money away. In a vehicle, we not only need to address the EQ of each speaker (which out of the box is exponentially worse in a vehicle) we also correct for the variance in acoustical materials and their effects on the overall frequency response, non-symmetrical cabin environment, non-symmetrical speaker placement, and the change in acoustical crossover behavior vs electrical. Other than EQ, there is absolutely no relation as to why we use a dsp in a concert/home environment vs in a vehicle environment. Unlike a concert/home environment, in a vehicle, level matching, time alignment, and acoustical crossover accuracy play a major role in tonality and localization. Not using a dsp creates a wall of sound. Using a dsp creates a stereo image which allows a listener to localize just like in a concert/home environment. It allows each speaker to play equal to one another. It allows each speaker to have the tonality of one another. It allows each speakers eq and acoustical crossover point to match one another. In a vehicle, when you set a highpass crossover point at 3200hz, that speaker does not actually cross at 3200hz. In fact, two identical speakers placed on opposite sides of the vehicle will have completely different acoustical crossover characteristics. The reason for this is due to a vehicles environment. A dsp allows you correct for the multiple of variables that wreak havoc on even the nicest stereo equipment. The people posting above that oppose a dsp in a vehicles environment have never experienced what a real high fidelity system sounds like nor do they understand the purpose of a dsp. It’s not their fault but as the saying goes, ignorance is bliss. If y’all want more reasoning, email me. I professionally consult and design high fidelity vehicle audio systems and I professionally tune digital signal processors. Dom [email]dhmaudiotuning@gmail.com[/email] [/QUOTE]
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