What are the disadvantages of Digital Signal Processing?
There can be few ,
1. Speed & the Cost
DSP Design cost can be very expensive when large bandwidth signals are involved . Even the ADC ( Analog to Digital Converter ) and DAC ( Digital to Analog Converter ) device prices are high for large BW scenarios .
Speed is another concern . Currently DSP devices are not faster enough to cater all the requirements in the world of signal processing . At the moment only up to moderate BW Signals can be processed . Bandwidths are in the 100MHz range are still being processed by analog methods since the DSP methods available are not faster enough .
2. Design Time
DSP Design time may be too long . And for DSP design, you should have a skilled, and perfect people who knows well about the DSP techniques . Also you should have the required toolset, specially the required software packages . Without these the DSP sometimes be impossible .
DSP -Digital signal processing the word it self says it is process of analyzing the digital signal . The system which does this work of analysis is the digital signal processing system. In this system the raw analog signal(ex:human voice) which is time domain signal is fed to the pre aliasing filter which removes noise part of the signal and this fed to the sampling and quantization in which the real time analog signal is…
Digital Image Processing is a type of Digital manipulation pertaining to pictures and video. "Photoshopping" a digital picture is an example of Digital Image Processing. Another example is what takes place in a digital camera when the image is captured on the image sensor and converted into a JPEG file to be saved on a memory card. Digital Signal Processing is a generic term for any manipulation of a Digitally encoded signal, such as Audio…
V. Madisetti has written: 'Video, speech, and audio signal processing and associated standards' -- subject(s): Sound, Signal processing, Speech processing systems, Digital video, Standards, Digital techniques, Recording and reproducing, Image processing 'Mascots 94' 'VLSI digital signal processors' -- subject(s): Design and construction, Signal processing, Microprocessors, Very large scale integration, Digital techniques, Rapid prototyping, Integrated circuits 'Digital signal processing fundamentals' -- subject(s): Signal processing, Digital techniques 'A platform-centric approach to system-on-chip (SoC) design' -- subject(s): Design…
John G. Proakis has written: 'Introduction to digital signal processing' -- subject(s): Signal processing, Digital techniques 'Digital signal processing' 'Contemporary communication systems using MATLAB and Simulink' -- subject(s): Computer simulation, Data transmission systems, MATLAB, Telecommunication systems
Original. It changes the sound (pressure waves in the air in the room) into a digital signal. Correction: It changes the sound pressure waves into an ANALOG signal. Any digital signal is the result of feeding the analog mic signal into an analog-to-digital converter, typically in a computer's sound card. Original. An electric guitar doesn't need a microphone because it makes a digital signal. Correction: A simple guitar with magnetic pickups creates an ANALOG signal…
Depends on the type of computer: Analog computers process Analog (Continuous) signals Digital computers process Digital (Discontinuous) signals Digital Signal Processors process Digitized Analog signals Any analog type signal can be digitized for a digital computer and converted back to analog for the "real world".
Adv. Digital · easy to store and use, that is why computers use it. · Digital data is designed and artificially created, so it is efficient. · Less expensive . DSP is easier to reconfigure as it is made up of h/w as well as s/w. Disadv. Digital · Digital communications require greater bandwidth than analogue to transmit the same information. . Due to Quantisation , an error is alwz there.