[sdiy] Deep thoughts on Old drum machines: the "VCA"

[Adam Inglis (synthDIY)]

> On 25 Nov 2021, at 7:39 am, Mikko Helin via Synth-diy <synth-diy at synth-diy.org> wrote:
> 
> Interesting story from the TR-808 makers here:
> https://rc-808.com/episodes-of-the-mid-o-series/


Wow, thanks for that, I hadn’t seen it.

This bit is interesting - I wonder what he means exactly?

"Before I was hired to Roland in 1977, starting from around 1972 I was developing multiple systems with MPU such as Intel i8008 and so on. Even before that, I was an expert of linear circuits such as transistor radio, TV, wireless systems etc. After stepping into the electronic musical instruments fields, I was surprised to see this unique technological culture that boldly and cleverly utilizes the non-linear domain of semiconductors that was considered as taboo in the linear system. This non-linear technology enables the distinctively analog sounds, but at the same time, it had large individual variance, and lacked the dynamic range, S/N, temperature dependency, and stability of the products.”

A









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