Anybody who works with concert systems knows that your worst nightmare is somebody videotaping or audiotaping your rig in operation. They sound AWFUL. Usually nothing but about 500-600hz. While playing with this DSP, I decided to try taping it to see what it sounded like. I was really surprised. Of course, the camera does not do a good job on deep low end, these Shearer subs are useable down to 38hz or so, and they are thundering even if you can't hear it well. The worst part about a steel building is that when you are testing low frequency speakers, the building walls suck out a huge amount of the low end. If I go outside, the low end is much stronger coming through the walls of the building, so a significant amount of SPL is being sucked outside. Current whiz-bang concert systems are horribly inefficient, and take colossal amounts of amplifier power and gobs of digital processing horsepower to make them sound decent. So this experiment is about taking an old-school rig and applying moderate amounts of DSP to time align it, do basic generic EQ, and experiment with some unusual crossover profiles. The processor is a Crown USM810 with updated firmware, which is kind of a "Swiss Army Knife" DSP, that will do lots of different things unrelated to basic system processing, but which functions well as a system controller. This rig is running 4-way, with subs from 20-80hz, low mid from 120-500hz, high mid from 500-2khz, and high from 2khz and up. The gap in the crossover points ...
Sunday, 6 January 2013
New life in an old school sound system with Digital Processing
New life in an old school sound system with Digital Processing Tube. Duration : 4.65 Mins.
Anybody who works with concert systems knows that your worst nightmare is somebody videotaping or audiotaping your rig in operation. They sound AWFUL. Usually nothing but about 500-600hz. While playing with this DSP, I decided to try taping it to see what it sounded like. I was really surprised. Of course, the camera does not do a good job on deep low end, these Shearer subs are useable down to 38hz or so, and they are thundering even if you can't hear it well. The worst part about a steel building is that when you are testing low frequency speakers, the building walls suck out a huge amount of the low end. If I go outside, the low end is much stronger coming through the walls of the building, so a significant amount of SPL is being sucked outside. Current whiz-bang concert systems are horribly inefficient, and take colossal amounts of amplifier power and gobs of digital processing horsepower to make them sound decent. So this experiment is about taking an old-school rig and applying moderate amounts of DSP to time align it, do basic generic EQ, and experiment with some unusual crossover profiles. The processor is a Crown USM810 with updated firmware, which is kind of a "Swiss Army Knife" DSP, that will do lots of different things unrelated to basic system processing, but which functions well as a system controller. This rig is running 4-way, with subs from 20-80hz, low mid from 120-500hz, high mid from 500-2khz, and high from 2khz and up. The gap in the crossover points ...
Anybody who works with concert systems knows that your worst nightmare is somebody videotaping or audiotaping your rig in operation. They sound AWFUL. Usually nothing but about 500-600hz. While playing with this DSP, I decided to try taping it to see what it sounded like. I was really surprised. Of course, the camera does not do a good job on deep low end, these Shearer subs are useable down to 38hz or so, and they are thundering even if you can't hear it well. The worst part about a steel building is that when you are testing low frequency speakers, the building walls suck out a huge amount of the low end. If I go outside, the low end is much stronger coming through the walls of the building, so a significant amount of SPL is being sucked outside. Current whiz-bang concert systems are horribly inefficient, and take colossal amounts of amplifier power and gobs of digital processing horsepower to make them sound decent. So this experiment is about taking an old-school rig and applying moderate amounts of DSP to time align it, do basic generic EQ, and experiment with some unusual crossover profiles. The processor is a Crown USM810 with updated firmware, which is kind of a "Swiss Army Knife" DSP, that will do lots of different things unrelated to basic system processing, but which functions well as a system controller. This rig is running 4-way, with subs from 20-80hz, low mid from 120-500hz, high mid from 500-2khz, and high from 2khz and up. The gap in the crossover points ...
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