Using different IIR & FIR (minimum phase/lineair phase) filter design techniques for:
is a class of electronic or digital filters used in audio applications. Most individual loudspeaker drivers are incapable of covering the entire audio spectrum from low frequencies to high frequencies with acceptable relative volume and absence of distortion so most Pro Audio and Hi-Fi speaker systems use a combination of multiple loudspeaker drivers, each catering to a different frequency band. Crossovers split the audio signal into separate frequency bands that can be separately routed to loudspeakers optimized for those bands. (Tutorial 1 2 3)
is a process in the field of acoustics where digital filters designed to ameliorate unfavorable effects of a loudspeaker (or: balanced armature) driver response. Loudspeaker (or: balanced armature) driver response correction systems produce substantial improvements in the time domain and frequency domain response of a loudspeaker (or: balanced armature) driver. (Tutorial 1 2 3)
is a process in the field of acoustics where digital filters designed to ameliorate unfavorable effects of a room's acoustics are applied to the input of a sound reproduction system. Modern room correction systems produce substantial improvements in the time domain and frequency domain response of the sound reproduction system. (Tutorial 1 2 3)
is a process in the field of acoustics where digital filter designed for hearing impaired (i.e. audiogram-, corrective EQ-, adaptive noise canceling-, cross-talk cancellation (HRTF)-, and user EQ implementation) to ameliorate unfavorable effects of a headphone's acoustics are applied to the input of a sound reproduction system. Modern DSP correction and cancelation techniques produce substantial improvements in the time domain and frequency domain response of the sound reproduction system. (Tutorial 1 2 3)
(New to DSP's? I recommend Analog.com's useful Beginner's Guide to DSP, and DSP 101).
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Because music is art & sound science, in 1988 acoustiColour is founded by musictechnologist (multidisciplined & certificated: electronics-, audio-, recording-, mix-, mastering engineer, composer, sound designer) and teaching musician Marcel Wardenier.
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Inspired by some of the most groundbreaking innovative audio pioneers/gurus acoustiColour created bootable CD/USB/VM images with clean builds of a hardened Debian Server for experimental dedicated realtime DSP Low-Latency JACK Audio Server Applications.
Disclaimer: as is, because this is work in progress.. (Altough functioning 99.99% stable in my audiolab 24/7!)
Please: don't forget to check out the tutorials & RTFM's!!
(And if you do read them, you'll notice how easy the concept is ported to other hardware platforms ☺!!)
(...acoustiColour simply loves the power of Open Source Software and Debian installed on a nowadays old useless-, but relatively silent Mac Mini 2,1+. Easily 'build' your own DSP power house running 16/24 bits 44.1/48/(96*) kHz., syncing on WC via S/PDIF signal using one of these instant functioning DSP bootable disk images.
(*) Dependent on production date of Mac Mini 2,1+
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