J-DSP video examples

This web page includes video files (AVI) that demonstrate the J-DSP software in action. By viewing these AVI files the user can visualize how blocks are established and connected using a drag and drop process. There are several simulation examples that are itemized below; their AVI (video) file and streaming video file are listed as a link. Both the AVI and the compressed (zipped) AVI are posted.

NEW

1. Export J-DSP simulations  into MATLAB scripts

This video example illustrates a new script functionality in J-DSP. Specifically, it shows the process on how to export J-DSP simulations into MATLAB scripts.

  JDSP demo

2. Psychoacoustic simulation

This video example shows the perceptually-based FFT component selection method in J-DSP.

  JDSP demo

1. Digital Filter I

   This example shows a simple digital filter simulation.

     JDSP demo | iJDSP demo | AJDSP demo

2. Digital Filter II

   This is another example that illustrates a simple digital filter simulation.

     JDSP demo

3. Shelving Filters (Tone control)

   This video illustrates the simulation of the shelving (tone control) filter block

     JDSP demo

4. Averaging Filter

   This is an example that illustrates a simple averaging filter simulation.

     JDSP demo 

5. Median Filtering

   This is an example that illustrates a simple median filtering simulation.

     JDSP demo

6. Graphical Equalizer

   This video shows an example of the graphic equalizer block use.

     JDSP demo

7. Frequency Response by placing poles and zeros in the z-plane

   This example demonstrates how the poles and zeros in the z-plane affect the frequency response of the filter. Observe that by moving the pole the frequency response peak moves across frequency.

     JDSP demo

8. Fast Fourier Transform (FFT) I - MIDI

   This example illustrates the FFT spectrum of sinusoidal signals produced by the MIDI block.

     JDSP demo

9. Fast Fourier Transform (FFT) II - DTMF

   This example illustrates the FFT spectrum of sinusoidal signals produced by the DTMF block.

    JDSP demo

10. Time-Frequency representation of sinusoidal signals I

    This example shows the time-frequency representation (spectrogram) of a sinusoidal signal.

      JDSP demo

11. Time-Frequency representation of sinusoidal signals II

    This example shows the time-frequency representation of a speech signal.

      JDSP demo

12. Time-Frequency representation of sinusoidal signals III

    This is another example that shows the time-frequency representation of a chirp signal.

      JDSP demo

13. Digital communications - Bit error curve (BER)

    This example illustrates the Monte-Carlo simulation of different modulation schemes (BPSK & QPSK).

      JDSP demo

14. Analog communications - DSB-SC AM modulation

    This example depicts the DSB-SC AM analog modulation of a sinusoidal continuous signal.

      JDSP demo

15. Multidimensional signal processing I

    This example shows lowpass 2D filtering of an image.

      JDSP demo

16. Multidimensional signal processing II

    This example shows highpass 2D filtering of an image.

      JDSP demo

17. Multidimensional signal processing III

    This example illustrates the transformation of an image using 2D wavelets

      JDSP demo

18. Control systems I

    This example shows the step response of a unit feedback control system

      JDSP demo

19. Control systems II

    This example depicts the step response of a control system with two transfer functions; one in the forward path and one in the feedback path.

      JDSP demo

20. Speech processing I - LPC+

    This video illustrates the application of (Linear Prediction Coding) LPC algorithm that is used in cell phones.

      JDSP demo

21. Speech processing II - RELP

    This video illustrates the application of RELP (Residual-Excited Linear Predictive) coder on speech signals.

      JDSP demo

22. LPC Vocoder Demo

    This example demonstrates how to run the LPC vocoder demo.

      JDSP demo