ELECTRO-HARMONIX MAINFRAME BIT CRUSHER SAMPLE RATE / BIT REDUCTION

Cette pédale d'effet est un produit boîte ouverte en parfait état cosmétique et est livrée avec la garantie complète du fabricant*. Sur celle-ci, le Footswitch a été remplacé (voir 2e et 3e photos) et il y a quelques fines rayures, marques et quelques autres imperfections ici et là (voir 11e à 16e photos), mais absolument rien de majeur. L'unité est livrée avec son alimentation dans sa boîte d'origine.

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ELECTRO-HARMONIX MAINFRAME - BIT CRUSHER

Buzz. Beep and bloop. We’re high on the lo-fi sounds of “old-school” games, toys and terminals and the Mainframe Bit Crusher takes us back in time to when Pac Man and Donkey Kong ruled the arcades, to when the Commodore 64 was high tech.

It provides sample rate reduction ranging from 48kHz to 110Hz. A little background… the sample rate is the number of times per second that a sample or snapshot of an analog signal is taken. For example, CDs (remember them?) had a sample rate of 44.1kHz which means that the original analog signal is sampled 44,100 times per second.

The sample rate defines the frequency range that can be reproduced while maintaining good fidelity. When the sample rate is reduced the quality of the audio is degraded and aliasing occurs. Aliasing means audible artifacts created when higher frequencies are sampled at an inadequate rate and the result is distortion. The Mainframe’s sample rate range is wide enough to take you from sounds that are quite pristine to sounds that are unrecognizable when compared to the input signal.

It also provides bit crushing ranging from 24-bit to 1-bit. What does that mean? Bit crushing is bit depth reduction. Back to our CD example… CDs used a 16-bit bit depth meaning that each of its samples was represented by 16-bits of information. Higher bit depths can accurately represent a greater dynamic range while bit crushing increases the number of sampling errors and creatively degrades the sound to bring us back to those nasty “old school” sounds we love.

The Mainframe’s selectable High/Low/Band-Pass filter lets the user shape the artifacts of the bit crushing and sample rate. Another very cool feature is its Sample Rate Tuning Mode where the pedal analyzes your input signal in real-time and sets the sample rate to match the pitch of your signal, or a set interval above your signal. This allows you to set the sample rate to match the key of a song, or it will continually adjust the sample rate based on what you play!

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SPECIFICATIONS:

Sample Rate Reduction ranging from 48kHz to 110Hz

Bit Depth Reduction ranging from 24-bit to 1-bit

Selectable High/Low/Band-Pass filter to shape the artifacts of the bit crushing and sample rate reduction

Sample Rate Tuning Mode allows you to set the sample rate to match the key of a song, or continually adjust the sample rate based on what you play on your instrument

Programmable preset or expression pedal setting allows you to save your sound or control any combination of the Mainframe’s knobs with an external expression pedal

Secondary knob parameters allow you to fine-tune the Mainframe’s effect.

High quality buffered bypass and silent switching

Comes equipped with an Electro-Harmonix 9.6DC-200mA PSU

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*The full manufacturer's warranty is only valid through us.