[sdiy] Drum sample playback

[Mike HEQX]

Thanks for the encouragement, I'm going to continue my work and 
hopefully pop out something that will be worthy of being sold into the 
pro-audio market place. Yeah when you speak in certain math terms I get 
nervous, but I am going to dig into LTspice a bit more and try to use it 
to help me understand a few things.



On 4/15/2017 8:11 AM, Richie Burnett wrote:
> I totally agree with Brian and Tom's comments.  And, would also add that:
>
> 1. A frequency response plot spat out by a quick simulation is likely 
> to be more immediately useful to you than knowing what the s-domain 
> transfer function of a circuit is!
> 2. The frequency response plot from the simulation should more 
> accurately match the behaviour of the real circuit, than deriving a 
> theoretical transfer function that won't take into account actual 
> device properties.
>
> Nobody should let mediocre maths skills deter them from getting into 
> electronics or engineering.  Believe me engineering can get as deeply 
> mathematical as you want to go, but I work as a professional 
> electronics engineer / DSP consultant and I certainly wouldn't class 
> my maths skills as anything special.  I use Fourier analysis, transfer 
> functions, control loops, etc. daily, but I have a decent PC with the 
> right software packages on it that do the difficult number crunching 
> for me.  I've only ever had to calculate a Fourier series manually 
> once, and that was for an Engineering exam 25 years ago!
>
> What matters most is a basic knowledge of the tools available and some 
> intuition to know which tool to reach for to solve a particular 
> problem. It's also useful to some extent being able to spot if that 
> tool doesn't spit out the results that you expected it to!  If you 
> really want to learn the gory details of the maths & theory behind 
> something (which I would encourage) then you can always hit the 
> textbooks and/or ask someone more skilled in the theory for help.
>
> -Richie,
>
>
>
> -----Original Message----- From: Tom Wiltshire
> Sent: Friday, April 14, 2017 8:52 PM
> To: Mike HEQX
> Cc: synth-diy at synth-diy.org
> Subject: Re: [sdiy] Drum sample playback
>
> Speaking from the position of a non-master, simulations are what I do 
> when I can't "get down to transfer functions", as you so nicely put 
> it. The sims are a good way of getting the computer to do the hard 
> sums and just tell me the answers. I can plug bits together in a 
> simulator (LTSpice in my case - free!) just the same as in a 
> breadboard and it can do the tough stuff of working out frequency 
> responses and gain values and whathaveyou.
>
> Tom
>
>
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