Sub Align calculator explained

Рет қаралды 23,798

8 жыл бұрын

This video lifts the veil regarding the prevailing question "where to align the main speakers to the subwoofers".
www.merlijnvanveen.nl/en/calc...

Пікірлер: 16

@nathanlively 6 жыл бұрын

Here are my notes. - Measuring in the back of the room will you the largest area of matched tonality because of matched SPL loss rates. - Measuring at the front of the room has the most potential for tonal variance and coupling errors. - Measuring 120º from the back of the room may give you the best balance: larger coupled area in exchange for more tonal variance. - The "best" measurement position is a balance between maximum coupled area and acceptable tonal variance. - Careful not to mistake SPL Plane for SPL Plan. Calculator instructions: 1. Input subwoofer, main, and audience location. 2. SPL Plot freq = crossover freq * 1.26 3. Alignment offset = 2 * 120º. Use twice what you want to be left with at the back.

@doctorcujo72 10 ай бұрын

where do you measure the height of the main speakers? at the top or the bottom of the cluster?

@nathanlively 10 ай бұрын

@@doctorcujo72 hey doctor, ideally we’d like to know where the origin of the sound is coming from. We often estimate this as the geometric mid-point of the array. bottom of array + (array span / 2) ≈ acoustic center

@lazygamerz 7 жыл бұрын

AMAZING! And coupling with the back also compensates for some of the loss of db due to distance.

@svenoxtoby4756 8 жыл бұрын

This is an amazing piece of work. Thank you.

@menteencoma 8 жыл бұрын

Thanks man ! I was waiting for this one

@den1980 7 жыл бұрын

thanks for the video.. question i have i can't seem to find much on is alignment position when there are more central subs.. i.e. 6 blocks of 4 across the front of the stage. where can the alignment position be? any literature on this that you know of?

@robertrickman3531 2 жыл бұрын

"Show me a Good Picture, and That's worth more than a Thousand Words" ...... yup

@gregorykusiak5424 Жыл бұрын

Yeah, and I loved loved loved how the SPL section view coincides with the floodlight in the RL-delta section view. The penny on sub alignment dropped in my head right there and then, bazinga and kablammo!

@SoundBarrierEntertainment 7 жыл бұрын

what processor would you recommend I have been just using dbx driveracks which may not be capable to do the job. I most seem to have cancellation of the left and right sub in small venues. what can I use to figure this

@MerlijnvanVeen 7 жыл бұрын

Hi Shad AFAIK driveracks allow you to set delay times and band-pass filters? LR cancellation is typical for that particular setup. Mono center sub cluster or horizontal array is the way to go. Alternatively for small venues, all subs together on either side of the room instead of LR has worked wells. Careful positioning might also alleviate room modes.

@ernesdepaz 2 жыл бұрын

I have a question about the height of main: The height that we must indicate must be that of the highest speaker, the one that is lower, or the one in the center of the line array? Thank you very much for this fantastic tool.

@MerlijnvanVeen 2 жыл бұрын

Thank you for your inquiry and your kind words. For height I typically, take the middle of the entire array. At low frequencies, it acts effectively the same as a single point source.

@ernesdepaz 2 жыл бұрын

@@MerlijnvanVeen Thank you very much for answering so quickly. Definitely resolved!