Digital signal generator download

The function shown in Listing A. You are to create a digital sine wave generator capable of synthesizing eight constant amplitude signals at frequencies specified in Section 8.

The frequency of the sine waves will be selected by setting one of the eight slide switches. The audible output will be enabled and the frequency displayed on the 4-digit 7-segment display for five seconds when BTND is pressed.

The LCD will display the frequency of the selected sine wave. The objective for this lab is to create a programmable digital oscillator as modeled in Fig. Figure 8.

Block diagram for Lab 7a. Tone Generator display when not generating tone. Tone Generator display when generating tone. Audio signal capture for a Hz synthesized signal. The control flow diagrams shown in Fig.

The code provided in Listings A. The Analog Electronics portion of Fig. Main function control flow diagram. Timer 2 ISR. In previous labs, steps were laid out to lead the student through effective design, construction, and testing procedures. This is now left up to the student to complete on their own, ensuring the design requirements listed in section 8. Figure B.

Basys MX3 low-pass filter and audio amplifier. Toggle Navigation. Table of Contents. Lab 7a: Digital Signal Generator 1. Objectives 2.

Basic Knowledge 3. Equipment List 3. Hardware 3. Software 4. Project Takeaways 5. Fundamental Concepts 5. IIR Digital Filters 5. The Z-plane Unit Circle 5. Problem Statement 7. Background Information 8. Lab 7a 8. Requirements 8. Design, Construction, Testing 9. Questions Initialize Audio Output Listing A. Initialize Tone Filter Listing A.

Use a programmable IIR filter to generate a single frequency sine wave. Display the frequency of the synthesized sine wave on the LCD and 7-segment display. Basys MX3 trainer board. Analog Discovery 2. XC32 Cross Compiler. WaveForms if using the Analog Discovery 2.

How to implement digital filters in C using a PIC32 microprocessor. See the discussion of IIR filters in section 6. The PWM period is to be set for Hz. This PWM period was selected to take advantage of the analog low-pass filtering of the PWM output to produce a clean sine wave shown in Fig.

The eight Basys MX3 slide switches are set to generate a single frequency tone as listed in Table 8. The frequency of the 8 synthesized tones are to be measure using the Analog Discovery 2, as shown in Fig. For each channel, you can adjust their phase degrees , Frequency 1 — Hz , and signal amplitude dB.

If you want, you can lock both the channels. So, whenever you change values for Left channel, Right channel values also change equally, and vice-versa. It has lots of tools and features to talk about, but we will talk about Audiodope as a signal generator software right now.

You can find it in the Tools menu as Tone Generator. When you open this tool, you are asked to select the signal type from sin, absolute sin, triangle, square, or sawtooth. The Frequency range can be set from 0. If you want, you can save the generated signal to your computer in WAV format.

As said before, this tone generator software has a vast set of tools, which includes audio editor, audio filters, audio effects, audio recorder, frequency analyzer, noise generator, etc. It also supports VST plugins. Tone Generator by Qubeksoft is another simple signal generator freeware for Windows.

Its lets you generate dual channel audio signal by providing Frequency values for both channels in Hz. For both channels, you can select the type of signal separately from Sine, Sawtooth, Square, or Triangle. The signal output can be heard from the audio output device connected to PC. There are not many options available in this tool for signal generation.

Option to set signal amplitude would have been an added advantage. Windows console tone generator is a command line signal generator software for Windows. It provides a very simple and easy way to generate signal of desired frequency and for a given duration. There are two ways to generate signal using this software. You can either enter respective command in CMD to generate signal or create and run a BAT file for multiple signal frequencies.

To do this, you will have to open Command Prompt first. In the CMD screen, navigate to the folder where Windows console tone generator is located. Now use the following syntax to generate signal with desire frequency and time.

Say, if you have to generate a signal with Hz of frequency for 4 seconds, use the following command. Now, lets see how to create and run a BAT file to generate signal with multiple frequencies. Creating a bat file lets you run single or multiple commands in CMD with a single click. So, if you create a BAT file, you can generate a signal with multiple frequencies for different duration. Open Notepad and type the above command that you used to generate signal in CMD tone Now to play other signal at different frequency, right after the first one, press enter and type other command, and so on.

Suppose you want to play a Hz signal for 3 seconds, and a Hz signal for 6 seconds. So, this is what you will type in Notepad:. Now save the text in BAT format in the folder where this software is located. To do this, simply add. BAT after filename of the text file while saving it. Now, whenever you run this bat file, Windows console tone generator will generate the given signals for defined amount of time. This command prompt signal generator would have been even more amazing if it had options to control signal amplitude.

Wav Test Tone Generator is an opensource signal generator with recorder. It generates signal but saves the signal output as WAV file. You will have to play the WAV file to listen or analyze the signal. Select the folder to save the WAV file. Begin signal generation and the WAV file with generated signal will be saved. Tone is another free signal generator software.

It lets you select the signal waveform type, frequency, and amplitude of the signal to generate. The Frequency of output signal can be varied from 2 to 20,Hz. You can fine tune Frequency if you want. Another option lets you enter Sampling rate in Hz and also, you can delay right channel by varying time in milliseconds. Signal Generator is a simple tool which lets you generate signal for either of the two channels at a time.

You can set signal Frequency in Hz, Amplitude, and Volume. Before you start signal generation, you will have to choose from Right or Left channels.

The Play sound option plays the signal for few seconds as test. Click on Start sound option to play the signal sound continuously. Note : You cannot generate a signal for both Right and Left channels at once. Signal is generated for either of the channels at a time. Digital Signal Generator , as the name says, is another software to generate signal from PC.

It can generate sin, triangle, square, white noise, and beat signal waves. You can set frequency values in Hz for both channels and select from two types of outputs: Single and Circle. If you have a WAV file, this software can play that signal as well. The signal waveform is displayed on the interface.

Option to pause, zoom in, and zoom out are available to analyze a signal. Soundcard Oscilloscope is a free Oscilloscope software that has a Signal Generator tool. Using this Signal Generator software, you can generate single or two channel signal. For both channels, you can set separately the signal type, Amplitude, Frequency, and Sweep.

Amplitude can be set from 0 to 1 and Frequency range can be varied between 10 to 10k Hz.