The first 15 years of my work live, I was working as a professional DJ, parallel during this time I learned how to repair audio electronics and I studied electric science to learn more about audio and its theories including loudspeakers. By that time it was the start of digital audio processing and I learned in theory and practice about digital signal processing and the transition points to the digital world (AD/DA conversion). Here everyone will find out that the amplifier / loudspeaker combination is the final stage to (do the DA) the analog world while on the input side it was possible to stay either complete digital (have digital content) or if you have analog content than try do the analog digital conversion at the latest possible point in the chain to obtain all DSP and analog advantages.
In the next 20 years of my work live I adapted these two principles to the audio chain and found it becomes necessary to make speakers that were build to support the possibilities of DSP. Here I worked excessively with FIR filtering and gained a lot of experience in combining FIR and IIR DSP technologies with different loudspeaker designs. A key technology I am using and continuously developing is the usage of some times called DS FIR (eg. Coda Audio) or also called Multi Pass FIR filter with different transition points between minimal and linear filtering in combination with IIR filtering.
Today I am working as free engineer for several loudspeaker companies (eg. WestLab Audio, Coda Audio, Cadenbach Acoustics. etc.) as head of R&D, specially in the field of FIR/IIR filtering and the software needed to get here practical usable results. But also as a loudspeaker designer, here I am very interested in my own designs that I try to make useable also for DJing because of historical aspects of my live. Specially on my own brand (Cadenbach Acoustics) I am trying now to combine retro loudspeaker design with new components because I feel this is a great benefit when reproducing music as a DJ at medium size clubs (up to 1000 people) if it comes to large scale events there is no other choice than line arrays.
If you are interested in my work you can lock here:
- If you are interested in world wide touring use with a standardised workflow and system design you can check out www.codaaudio.com.
- If you are more interested into individual rock and in-depended medium sized events and installations check out www.westlab-audio.com.
- If you are interested in DJing and high-end professional audio loudspeaker systems and retro designs, check out this webpage or www.cadenbach.eu.
Best regards Hans-Hartwig Cadenbach
