Recent content by taupune

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    Strings copyingmore than expected

    Hi ,I am doing some strings operation but it seems that compiler is doing extra copping. Can someone else verify this or is it my sloppy coding? Also I had to write std::cin ...etc otherwise compiler would like the code without that expression in main function. I am using Visual studio...
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    How Can I Calculate Inductance at High Frequencies?

    Hi All, I have a component that at 1 Khz has 100 mH Inductance and 100 Ω resistance. I know that at higher frequencies which I will need to run the circuit, these values won't be the same anymore. Is there any way, mathematically, to figure out what those values would be at higher...
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    Finding current from capacitance and voltage

    Thanks for the reply. so how can I find the output current when only the output voltage is given, knowing that the DAC is a current source.
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    Finding current from capacitance and voltage

    Hi, I have been looking for some current source DAC, and have found a few types but I am having issue reading the datasheet. Some of them give the output min and mac I that the DAC can provide, which makes sense to me but other give input capacitance and "some type" of voltage. Can you...
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    Data comparison and noise measurement

    You also have to decide what "kind" of noise you want to measure (phase noise? Or are you looking for the SNR)), another important parameter is the distortion. What type of noise is created by adding two cables together with a splicer? I think I need SNR, don't I? I have been reading a...
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    Data comparison and noise measurement

    I want to put an amplifier right after the cable splitter and see what will I get. Will I get better signal compared to the datasheet or no. I checked on digikey and they had opamp in the commercial amplifiers for only a few bucks. So yeah, I want the SNR but of my own homemade device. I will...
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    Data comparison and noise measurement

    Hi, I would like to measure the signal noise in a tv cable after introducing a splitter and compare it with the original signal. Keeping in mind the bandwidth frequency of the tv cable signal transmission, what kind of instrument do I need? Oscilloscope perhaps? At what speed? I don't know...
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    Understanding Audio Formats & Codecs

    Thanks Borek, very clear answer indeed. One more question. The hardware codecs would play only specific format woyldnt they? For example mp3 codec chips. They can play the mp3 file stream, just that right?
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    Understanding Audio Formats & Codecs

    Can someone explain the difference between audio format and codecs? wikipedia says this: A codec performs the encoding and decoding of the raw audio data while the data itself is stored in a file with a specific audio file format. I don't get this. lets says 1000 1111 is the digital...
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    Finding Cheap Sound Decoder IC for Human Voice

    Hi, I am thinking on working on a project where I would make use of a speaker and sound decoder chip , to transmit digital signal into audio. I am at a problem at part selection. I can't seem to find the right part for the job. I just need the part to be cheap, less than $5 and work on human...
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    Machine programming a 7segment LED

    Whats your backround Loki23? You might want to try with some chips that don't have much complicated syntax. I have used Lego mindstorms, paralax robotic kit, and trying now to do some project on PIC. Lego and paralax have some simle and intuitive development software.
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    How to Create a DAQ without Interrupting Data Streams

    I would like to have the serial communications ( SPI, I2C) the fastest, probably above 1MHz, and the digital I/O ... i want them fast , but don't have to be as fast. Oh, about precision, I want it to be as accurate as possible. Thats one design criteria. For analog, I might include 1 input at...
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    Engineering Why do people look down at the Civil Engineering?

    How many dads does this SON of yours have? One or two? :)
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    How to Create a DAQ without Interrupting Data Streams

    I have a development board for PIC already, but it uses serial , which is not of big concern to me at the moment. So what would be your suggestion at developing my main prrogram? Should it run interrupts or using a loop to check the status for any new inputs? How can I avoid interrupting...
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    How to Create a DAQ without Interrupting Data Streams

    Yup , DAQ = data acquisition device I am planning on using Pic since they are dirty cheap, but later on, once I have some solid code, I might upgrade to arm since they are quite powerful, and not that expensive at all. I have seen online some DAQ and the options and features they give seem to...
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