Dsp Software

This user manual describes the CMSIS DSP software library, a suite of common signal processing functions for use on Cortex-M and Cortex-A processor based devices. The library is divided into a number of functions each covering a specific category.
The idea of having additional horsepower available—via external DSP—to run whatever plugins you want might seem like an ideal solution for many modern recording engineers. However, computers have become extremely powerful over the last decade and plugin developers are constantly improving their software to be more CPU efficient.

Airspy is a line of Popular Software-Defined Radio (SDR) receivers developed to achieve High Performance and Affordable Price using innovative combinations of DSP and RF techniques.

DSP – Software Services

In addition to Antennas and Wireless Communications, MEI regularly develops Software, Firmware and Programmable Hardware for the applications listed below. Our preferred firmware platforms are any DSP chip, Microchip PIC18F, PIC24, PIC32, dsPIC and AVR/ATmega, as well as ARM Cortex M3-M7 families of processors. Our preferred software platforms are either Windows or Android operating systems, either in a stand alone or client-server environment. Our preferred programmable hardware platforms are Xilinx FPGA and CPLD.

Hardware, Software and Firmware Development

Digital Signal Processing (DSP)
Modulator/Demodulator (MODEM)
Adaptive Real-Time Control
Numerically Intensive Routines and Operations
Simulation, Emulation and Computer Aided Engineering
Data Analysis and Reduction
Automatic Test Systems for Production/Quality Control Environments
Embedded Processors for RF, Communications and Instrumentation
Supervisory, Control and Data Acquisition
Encryption

Preferred Firmware and Software Languages

Analog Devices has a broad selection of processors for a wide variety of applications. For more specific information about ADI Processors and Precision Analog Microcontrollers we invite you to explore the following:

The following document describes the basic concepts of Digital Signal Processing (DSP) and also contains a variety of Recommended Reading links for more in-depth information.

What is a DSP?

Digital Signal Processors (DSP) take real-world signals like voice, audio, video, temperature, pressure, or position that have been digitized and then mathematically manipulate them. A DSP is designed for performing mathematical functions like 'add', 'subtract', 'multiply' and 'divide' very quickly.

Signals need to be processed so that the information that they contain can be displayed, analyzed, or converted to another type of signal that may be of use. In the real-world, analog products detect signals such as sound, light, temperature or pressure and manipulate them. Converters such as an Analog-to-Digital converter then take the real-world signal and turn it into the digital format of 1's and 0's. From here, the DSP takes over by capturing the digitized information and processing it. It then feeds the digitized information back for use in the real world. It does this in one of two ways, either digitally or in an analog format by going through a Digital-to-Analog converter. All of this occurs at very high speeds.

To illustrate this concept, the diagram below shows how a DSP is used in an MP3 audio player. During the recording phase, analog audio is input through a receiver or other source. This analog signal is then converted to a digital signal by an analog-to-digital converter and passed to the DSP. The DSP performs the MP3 encoding and saves the file to memory. During the playback phase, the file is taken from memory, decoded by the DSP and then converted back to an analog signal through the digital-to-analog converter so it can be output through the speaker system. In a more complex example, the DSP would perform other functions such as volume control, equalization and user interface.

A DSP's information can be used by a computer to control such things as security, telephone, home theater systems, and video compression. Signals may be compressed so that they can be transmitted quickly and more efficiently from one place to another (e.g. teleconferencing can transmit speech and video via telephone lines). Signals may also be enhanced or manipulated to improve their quality or provide information that is not sensed by humans (e.g. echo cancellation for cell phones or computer-enhanced medical images). Although real-world signals can be processed in their analog form, processing signals digitally provides the advantages of high speed and accuracy.

Because it's programmable, a DSP can be used in a wide variety of applications. You can create your own software or use software provided by ADI and its third parties to design a DSP solution for an application. For more detailed information about the advantages of using DSP to process real-world signals, please read Part 1 of the article from Analog Dialogue titled: Why Use DSP? Digital Signal Processing 101- An Introductory Course in DSP System Design.

What's Inside a DSP?

A DSP contains these key components:

Dsp Software Download

Program Memory: Stores the programs the DSP will use to process data
Data Memory: Stores the information to be processed
Compute Engine: Performs the math processing, accessing the program from the Program Memory and the data from the Data Memory
Input/Output: Serves a range of functions to connect to the outside world

Dsp Software For Windows

DSP workshops are a very fast and efficient way to learn how to use Analog Devices DSP chips. The workshops are designed to develop a strong working knowledge of Analog Devices' DSP through lecture and hands-on exercises.

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