Mmmm... Audio and general electronics...

subrock · 28 May 2007

The reality is that its really hard to learn this stuff by your self, same goes for your question about DSP. Books at this level are really designed to supplement lecture material, and its nearly impossible to understand if you don't have 1) basic electrical engineering concepts and 2) someone to guide you through the material. I was in the same boat a year ago, when I've only had a year exposure to basic undergraduate electrical engineering coursework. I've now taken two semesters worth of signal processing and circuit courses and only now do I feel like I can explore everything I wanted to relating to audio signal processing.

The standard book on DSP is "Discrete time signal processing", by Oppenheim and Schaefer. I've also used "Signals and Systems", which is by Oppenheim. Dspguide.com has a free online book available which I found to be pretty decent.

The standard book on analogue circuits is "The art of electronics" by Horowitz, but I used "Microelectronic Circuits" by Sedra and Smith. But if you don't understand concepts like impedence, then you need to start off with more introductory material, which is plentiful for this subject.

OG Mike · 28 May 2007

Cheers for the info...

I started looking into the very basics of electronics, and it's alright at the moment.

subrock jus wondering if you could answer a small question on capacitance.

Am I right in saying that when a capacitor reaches it's full charge (or very close to that), it will stop the flow of electricity in a circuit?

Or is it that if 9volts is attempting to flow through a capacitor, it will take untill the capacitor is at full charge before the full 9volts is allowed to pass through?

Cheers in advance.

subrock · 28 May 2007

Am I right in saying that when a capacitor reaches it's full charge (or very close to that), it will stop the flow of electricity in a circuit?

Yes. A capacitor in theory blocks all DC(direct current). I = C *(dv/dt) so once the capacitor is fully charged dv/dt =0 and I=0

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john_bedini · 2 Aug 2007

OG Mike,

As I always wanted to create processors on the computer and have designed many 3D systems in analog for 20 years. The math functions here baffle me as to what is going on, as in real electronics it's much different. For example we have a symbol with two inputs and a minus sine and an output. Normally when we do a subtraction process it's the difference between the two channels but the phase is shifting and not inverting (L-R) = the difference between the two channels (Space), do you find this correct?. When we do a sum it's the right and left added together or ( R+L) to generate a new stereo signal these two signals are mixed together to form two new channels. Example, mono to stereo converter. If the phase is flipped 180 degrees on the delayed channel it is the illusion of "Stereo" but the center will be gone ( no base ) and in the real world voices come from the center unless mixed to right or left channels. so understanding electronics here makes no difference if the building blocks do something different. I always wondered about this with digital as analog is the real thing in the end. Hope I have made my point. I do find Synthmaker intriguing and will work to find the answer on the math or change the symbols to work correct somehow for analog. John

OG Mike wrote: I've been recentally attempting to study Analog filter's and their design from the most basic stages.

I have been attempting to learn the design of analog audio parts and the related electronic concepts involved in the hope that it would help me in understanding the mathematics and general concept of designing anything to do with minipulating audio, such as with making units in synthmaker.

My problem is that I don't really understand electronics... The book from which I am learning from refers to stuff like 'impendance', 'load reactance', 'load resistance' etc. over and over, especially when it comes to the mathematics, most is going over my head becuase of this.

So just wondering if anyone new of a book or internet guide or what not that could teach me the fundamentals of electronics, (relating to audio if possible). I don't know if it is just audio related or not, but I need something that tells you about things such as Voltage and Current phase in capacitors and inductors etc. Stuff like that...

Any help would be appreciated, cheers all!