[sdiy] Trueno

rsdio at audiobanshee.com rsdio at audiobanshee.com
Wed Dec 13 00:28:13 CET 2017

True, No Synth.

That's what I see when I look at the domain name.

… and would anyone named Matt care to comment on the "exceptional matt finish" of the case?

All in all, it's not a bad idea, but I think they managed to do a very poor job of a good idea.


On Dec 12, 2017, at 6:02 AM, rburnett at richieburnett.co.uk wrote:
> Yep, not nice (>.<)  It looks like they didn't use any sort of anti-aliasing filter before digitising the analogue output.  Any half-decent VA synth would certainly do better than this.  The linear decay envelope sounds a bit unusual too.
> One of the Trueno reviews I read seemed to suggest that it "threw away the best features of analogue and digital synths, and kept the worst bits."  At least if they'd included an analogue output jack then you could have avoided the poor quality audio digitisation.
> -Richie,
> On 2017-12-12 13:34, Vladimir Pantelic wrote:
>> Trueno has some raw waveform samples on their website and at first
>> glance, they have quite a bit of aliasing present. not as bad as a naive
>> digital waveform, but not as clean as one would expect from a correctly
>> sampled analog VCO either...
>> e.g. http://truenosynth.com/wp-content/uploads/2017/mp3/Osc%20-%20Saw.mp3
>> On 12.12.2017 10:57, Roman Sowa wrote:
>>> The list is a bit too quiet recently, so maybe instead of regular "is
>>> this thing on?", here's something to discuss and threading endless
>>> suppositions about what's in there and what's not.
>>> One of my fb friends has just bought the Trueno synthesizer and by my
>>> polite request, he made a photo of inards at better angle than the one
>>> on maker's website. Photo of the other side tomorrow - he says.
>>> http://www.synthdiy.eu/files/trueno.jpg
>>> My first thought when I saw it was ASM-1 or MFOS, but that's probably
>>> just because of generous amount of TL074. Plus 3x 4051 mux.
>>> Obviously on the other side will be some ARM or whatever to deal with
>>> USB, ADC and control voltages, DC/DC converters, and something tunable
>>> for the filter (OTA, or transistors), because it's only one 074 outlined
>>> there as VCF with only few passive components.
>>> Roman

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