AudioThing Octaves – 61% Off – $19 reg. $49 +FREE Plugin +Virtual Cash

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Hainbach’s Bandpass Filter

Octaves is AudioThing’s latest collaboration with Berlin-based composer and YouTuber Hainbach. It is a filter plugin designed to take apart the audio spectrum in spreads of octaves, allowing for unique and enchanting spectral sound design effects. Octaves gives you a retro-scientific approach to sound that echoes the timeless productions created in the BBC Radiophonic workshop or the WDR Studio für Elektronische Musik by the Avantgarde masters, and modern places like Willem Twee, Strøm, and Hainbach’s own laboratory.

 

What is a bandpass filter?

Passive bandpass filters are designed to listen and especially look at (when connected to an Oscilloscope) specific parts of an audio spectrum for signal analysis in broadcast, research and radio communication. They are commonly designed to work in octaves (Oktavesieb) or thirds (Terzsieb), and you switch between these frequencies in steps.

 

Passive bandpass filters are among the heaviest audio research tools ever made. As they they use no electricity, all the filtering is realized by massive metal coils, wound for each frequency band. Since there are quite a few bands, even the smallest examples get rather heavy.

The portable Brüel & Kjaer 1613 AudioThing modeled for Octaves clocks in at 2kg (about 4 pounds). Bigger versions intended for laboratory and signal corps use easily go up to 29kg. Rather impractical by today’s standards, so after the invention of the transistor and integrated circuits, these high-end tools fell by the wayside. But their sound graced countless records of the electronic Avantgarde. They were a beloved staple of radio studios in Germany, France, the UK, and Italy. Composers used them to tear apart sounds spectrally. In the Netherlands, they often hit them with short bursts of pulses in a technique called pinging, turning them into colorful percussion boxes. Due to their construction, they have a unique sound that you don’t find in any normal synthesizer, which attracts musicians even today.

Sale ends April 30, 2026.

https://www.pluginboutique.com/product/2-Effects/19-Filter/17151-Octaves

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