Multisub bass-systems and potential challenges
Multisub means to use several subwoofer units placed around the room, so that they together form a bass-system that eliminates room acoustic influence. The goal is perfect bass, with focus on achieving a flat frequency response.
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Which one sounds best
How to find out which one gives the best sound – without advanced technical analysis. It is possible, and it is not very difficult.
Why Vinyl Sounds Better
Vinyl sounds better, right? If so, there is a reason that can be explained in technical terms. Let us find out.
The answer is simply that vinyl does not sound better, in fact it is inferior to digital.
Testing Amplifier Sound Quality
This is something I have though about a long time now – finding a method to reliably verify sound quality differences in power amplifiers.
Finally I have set up the necessary instrumentation to try out the method in practical experiments.
Pink Noise Calibration
Measuring more than one speaker and getting predictable and usable results can be challenging.
Using pink noise and a real-time analyzer makes it easy to check level and frequency response, and you can move the mic around to measure at different locations and still get meaningful observations.
Audibility of peak limiting
Audibility of phase distortion
Phase distortion at low frequencies causes audible degradation of music.
When is it audible, what causes it and how does it affect sound quality.
Floor reflection fixed
Floor reflection fixed with two small additions to interior decoration
Puff ready for some music
When measuring speakers I have used cardboxes, carpets and such in front of speakers to dampen the first floor reflection.
Useful both for indoor and outdoor measurements, this proves to at least have some effect on the reflection, improving measurement accuracy in a quick set-up.
Now, could a similar approach be used in an ordinary room, and actually look nice and appear as a natural extension of the interior design.
How Loud is it – Sound pressure requirements for movies and music
So, how loud is it.
What kind of sound level exposure is to be expected, and what sound pressure level should be used for system requirements.
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