- Category :Author:Sylvain SaurelLatest Version :2.0Updated :2018-10-06Requirements:4.0 and upGet it on :
About this app
Frequency Generator is a Tools app developed by Sylvain Saurel. The latest version of Frequency Generator is 2.0. It was released on October 6, 2018. You can download Frequency Generator 2.0 directly on https://apks.live. Over 21 users rating a average 4.1 of 5 about Frequency Generator. More than 1,000+ is playing Frequency Generator right now. Coming to join them and download Frequency Generator directly!
Compute a Frequency Response. Analyzing the response to different kinds of inputs can be used to design, understand or control a system. Give a fluctuating input signal to a DC motor and study the frequency response of the motor speed. Turn your Android phone into a professional audio analyser. Supports one, 1/2 and 1/3 octave filter and calibration. Displays overall Peak and RMS value for acoustical measurements. Measure the frequency response of your audio equipment, identify tones and noises. Bugs etc: [email protected].
However, the question arises: why do users want to get Frequency Generator for PC Windows devices? (windows 7, 8, or 10). This is simply because a laptop offers them a larger screen with an enhanced experience. Also, not everyone has an android phone or tablet, right?
In this article, we will cover the ways to download Frequency Generator on pc with and without Bluestacks. So there are two methods to install Frequency Generator APK on the computer.
How to use Frequency Generator on PC Windows
Before you start, you will need to download the apk installer file, you can find download button on top of this page. Save it to easy-to-find location.
[Note]: You can also download older versions of this app on bottom of this page.
There are many good android emulators in market, the best one is andy, Bluestacks, Nox App player and mynamo. In this guide, we will tell you the method to download Frequency Generator using Bluestacks and Nox App player.
Download Frequency Generator for PC with Bluestacks
- Firstly, You should install Bluestacks Software on your Computer or Laptop. (Note: Come back to this post once you installed Bluestacks correctly)
- After Bluestacks, now, you must download .APK file of Frequency Generator. Click here.
- Open the Bluestacks App already installed on your PC/Laptop. In the left-hand corner toolbox, you will find an option of Add APK. Load the APK file using the option on the Bluestacks. Click on that.
- It will ask about the location where you have kept the downloaded APK. In my case, I have kept it on Desktop, so I am selecting that.
- It will now automatically install the application on Bluestacks. You will find the Frequency Generator on applications tab on the main screen of the Bluestacks window.
- Now, you are all set to use Frequency Generator on PC. Here is the Frequency Generator successfully running on my PC after installing and clicked on the app.
Now, we should discuss the installation of Frequency Generator on PC using NOX App player. You can use this method if Bluestacks method is not working properly on your Laptop or Computer.
Download Frequency Generator for PC with Nox App player
- First of all, you must download Nox App player, click on the software to start installation on your Computer/Laptop.
- Now, download APK file from here.
- After installation, open the NOX player. In the right-hand side corner toolbox, you will find an option of ‘Add APK’. Click on that option.
- Select Don’t show again and click on I know.
- You have to choose the APK from the downloaded location. As I have saved it on the desktop, I choose from there. (If your downloaded file is in Downloads area, select the .APK from there itself)
- Nox will automatically install the Application. Open it from the home screen of Nox app player.
- You will then be asked about if you want to change your location from ‘Worldwide’ to any particular location. Initially, choose Later option.
- Now, you are ready to use the App with some pre-existing website links embedded in the App.
- Note: UseESCAPEto come back to the home screen or else you can use the symbols to operate Frequency Generator app on PC NOX app player.
Which Emulator Should I Use?
How To Find Frequency Response
If you’re going to follow my recommendation then I suggest you go with NOX because it’s quite simple and easy to understand. You don’t have to panic yourself for anything it will teach after every step for once to guide about how this Emulator works.
If it didn’t work for you then you can search for its alternative android emulators, the best alternative of NOX is BlueStack. It is also good and worth to use only if NOX didn’t work for you.
Download Frequency Generator App for PC without Bluestacks
Users who want to experience the available movies & TV without blustacks can use a new software called The ARC Welder.
- So this software only runs through google chrome browser. If you don’t have it by default, please go ahead & download it.
- Then search for Arc Welder chrome extension in the google chrome store and simply download it.
- Now follow the same steps. Download Frequency Generator apk file, and run it on arc welder.
- Choose the option – full window or partial screen while testing.
- You can start using the app on your PC with these steps.
With these steps, you can have Frequency Generator on your PC after these two methods are implemented.
So this is how you can download or install Frequency Generator for Pc. Hope you guys have enjoyed my work and don’t forget to share this method with your friends and loved ones. You can also try this procedure on your Mac if you’re looking for Frequency Generator for Mac devices.
If this doesn't work on your PC, or you cannot install, comment here and we will help you!
The description of Frequency Generator
Frequency Generator lets you to generate a simple tone between 1Hz and 24000Hz for a duration of your choice.Use the slider to select the frequency of your choice, then use the second slider to select the duration of the tone you want to generate and finally you have just to click on the play button to play the tone which is a sine wave signal.
Frequency Generator is a simple and efficient tool covering the following use cases :
- Testing speakers or audio devices
- Make a quick test of your Hearing by determining the range of frequencies you are able to hear. For this use case, a more complete solution can be found with Hearing Test : https://play.google.com/store/apps/details?id=com.ssaurel.hearingtest
- Experiencing the acoustic beat phenomenon. What is the acoustic beat phenomenon ? The beat phenomenon is an interference pattern between two sounds of slightly different frequencies, perceived as a periodic variation in volume whose rate is the difference of the two frequencies. To experience this phenomenon, you have just to launch Frequency Generator on two devices and then generate a frequency of 560Hz on the first and 563Hz on the second. Like that, you will hear an acoustic beat of frequency 3Hz. Musicians commonly use interference beats to objectively check tuning at the unison, perfect fifth, or other simple harmonic intervals.
- Make some jokes to your friends or in the public transports
A Pro version with no ads is also available here : https://play.google.com/store/apps/details?id=com.ssaurel.frequencygenerator.pro
Don't hesitate send your feedback or give me your ideas to improve Frequency Generator via email : [email protected]
The Permissions of Frequency Generator
View network connections:- Allows the app to view information about network connections such as which networks exist and are connected.
Full network access:
- Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
Prevent device from sleeping:
- Allows the app to prevent the device from going to sleep.
Receive data from Internet:
Frequency Response App For Mac Free
- Allows apps to accept cloud to device messages sent by the app's service. Using this service will incur data usage. Malicious apps could cause excess data usage.Frequency Generator for PC Windows official Trailer
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Audio Frequency Response
Version: 2.0
Update on: October 6, 2018
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Frequency response is the quantitative measure of the output spectrum of a system or device in response to a stimulus, and is used to characterize the dynamics of the system. It is a measure of magnitude and phase of the output as a function of frequency, in comparison to the input. In simplest terms, if a sine wave is injected into a system at a given frequency, a linear system will respond at that same frequency with a certain magnitude and a certain phase angle relative to the input. Also for a linear system, doubling the amplitude of the input will double the amplitude of the output. In addition, if the system is time-invariant (so LTI), then the frequency response also will not vary with time. Thus for LTI systems, the frequency response can be seen as applying the system's transfer function to a purely imaginary number argument representing the frequency of the sinusoidal excitation.[1]
Two applications of frequency response analysis are related but have different objectives.
For an audio system, the objective may be to reproduce the input signal with no distortion. That would require a uniform (flat) magnitude of response up to the bandwidth limitation of the system, with the signal delayed by precisely the same amount of time at all frequencies. That amount of time could be seconds, or weeks or months in the case of recorded media.
In contrast, for a feedback apparatus used to control a dynamic system, the objective is to give the closed-loop system improved response as compared to the uncompensated system. The feedback generally needs to respond to system dynamics within a very small number of cycles of oscillation (usually less than one full cycle), and with a definite phase angle relative to the commanded control input. For feedback of sufficient amplification, getting the phase angle wrong can lead to instability for an open-loop stable system, or failure to stabilize a system that is open-loop unstable.
Digital filters may be used for both audio systems and feedback control systems, but since the objectives are different, generally the phase characteristics of the filters will be significantly different for the two applications.
Estimation and plotting[edit]
Frequency response of a low pass filter with 6 dB per octave or 20 dB per decade
Estimating the frequency response for a physical system generally involves exciting the system with an input signal, measuring both input and output time histories, and comparing the two through a process such as the Fast Fourier Transform (FFT). One thing to keep in mind for the analysis is that the frequency content of the input signal must cover the frequency range of interest because the results will not be valid for the portion of the frequency range not covered.
The frequency response of a system can be measured by applying a test signal, for example:
- applying an impulse to the system and measuring its response (see impulse response)
- sweeping a constant-amplitude pure tone through the bandwidth of interest and measuring the output level and phase shift relative to the input
- applying a signal with a wide frequency spectrum (for example multifrequency signals [2] (nonorthogonal frequency-discrete multiplexing of signals (N-OFDM [3][4] or as the same SEFDM[5]) and OFDM), digitally-generated maximum length sequence noise, or analog filtered white noise equivalent, like pink noise), and calculating the impulse response by deconvolution of this input signal and the output signal of the system.
The frequency response is characterized by the magnitude of the system's response, typically measured in decibels (dB) or as a decimal, and the phase, measured in radians or degrees, versus frequency in radians/sec or Hertz (Hz).
These response measurements can be plotted in three ways: by plotting the magnitude and phase measurements on two rectangular plots as functions of frequency to obtain a Bode plot; by plotting the magnitude and phase angle on a single polar plot with frequency as a parameter to obtain a Nyquist plot; or by plotting magnitude and phase on a single rectangular plot with frequency as a parameter to obtain a Nichols plot.
For audio systems with nearly uniform time delay at all frequencies, the magnitude versus frequency portion of the Bode plot may be all that is of interest. For the design of control systems, any of the three types of plots (Bode, Nyquist, Nichols) can be used to infer closed-loop stability and stability margins (gain and phase margins) from the open-loop frequency response, provided that for the Bode analysis the phase-versus-frequency plot is included.
The form of frequency response for digital systems (as example FFT filters) are periodical with multiple main lobes and sidelobes.[6]
Nonlinear frequency response[edit]
If the system under investigation is nonlinear then applying purely linear frequency domain analysis will not reveal all the nonlinear characteristics. To overcome these limitations, generalized frequency response functions and nonlinear output frequency response functions have been defined that allow the user to analyze complex nonlinear dynamic effects.[7] The nonlinear frequency response methods reveal complex resonance, inter modulation, and energy transfer effects that cannot be seen using a purely linear analysis and are becoming increasingly important in a nonlinear world.
Applications[edit]
In electronics this stimulus would be an input signal.[8] In the audible range it is usually referred to in connection with electronic amplifiers, microphones and loudspeakers. Radio spectrum frequency response can refer to measurements of coaxial cable, twisted-pair cable, video switching equipment, wireless communications devices, and antenna systems. Infrasonic frequency response measurements include earthquakes and electroencephalography (brain waves).
Frequency response requirements differ depending on the application.[9] In high fidelity audio, an amplifier requires a frequency response of at least 20–20,000 Hz, with a tolerance as tight as ±0.1 dB in the mid-range frequencies around 1000 Hz, however, in telephony, a frequency response of 400–4,000 Hz, with a tolerance of ±1 dB is sufficient for intelligibility of speech.[9]
Frequency response curves are often used to indicate the accuracy of electronic components or systems.[8] When a system or component reproduces all desired input signals with no emphasis or attenuation of a particular frequency band, the system or component is said to be 'flat', or to have a flat frequency response curve.[8] In other case can be use 3D-form of frequency response surface.
Once a frequency response has been measured (e.g., as an impulse response), provided the system is linear and time-invariant, its characteristic can be approximated with arbitrary accuracy by a digital filter. Similarly, if a system is demonstrated to have a poor frequency response, a digital or analog filter can be applied to the signals prior to their reproduction to compensate for these deficiencies.
The form of a frequency response curve is very important for anti-jamming protection of radars, communications and other systems.
See also[edit]
References[edit]
- Notes
- ^Dennis L. Feucht (1990). Handbook of Analog Circuit Design. Elsevier Science. p. 192. ISBN978-1-4832-5938-3.
- ^RU2054684 (C1) G01R 23/16. Amplitude-frequency response measurement technique// Slyusar V. – Appl. Number SU 19925055759, Priority Data: 19920722. – Official Publication Data: 1996-02-20 [1]
- ^Slyusar, V. I. Smolyar, V. G. The method of nonorthogonal frequency-discrete modulation of signals for narrow-band communication channels// Radio electronics and communications systems c/c of Izvestiia- vysshie uchebnye zavedeniia radioelektronika. – 2004, volume 47; part 4, pages 40–44. – Allerton press Inc. (USA)[2]
- ^Slyusar, V. I. Smolyar, V. G. Multifrequency operation of communication channels based on super-Rayleigh resolution of signals// Radio electronics and communications systems c/c of Izvestiia- vysshie uchebnye zavedeniia radioelektronika.. – 2003, volume 46; part 7, pages 22–27. – Allerton press Inc. (USA)[3]
- ^M. R. D. Rodrigues and I. Darwazeh. A Spectrally Efficient Frequency Division Multiplexing Based Communications System.// InOWo'03, 8th International OFDM-Workshop, Proceedings, Hamburg, DE, September 24–25, 2003. – https://www.researchgate.net/publication/309373002
- ^L. R. Rabiner and B. Gold. Theory and Application of Digital Signal Processing. – Englewood Cliffs, NJ: Prentice-Hall, 1975. – 720 pp
- ^Billings S.A. 'Nonlinear System Identification: NARMAX Methods in the Time, Frequency, and Spatio-Temporal Domains'. Wiley, 2013
- ^ abcStark, 2002, p. 51.
- ^ abLuther, 1999, p. 141.
- Bibliography
- Luther, Arch C.; Inglis, Andrew F. Video engineering, McGraw-Hill, 1999. ISBN0-07-135017-9
- Stark, Scott Hunter. Live Sound Reinforcement, Vallejo, California, Artistpro.com, 1996–2002. ISBN0-918371-07-4
- L. R. Rabiner and B. Gold. Theory and Application of Digital Signal Processing. – Englewood Cliffs, NJ: Prentice-Hall, 1975. – 720 pp
External links[edit]
- University of Michigan: Frequency Response Analysis and Design Tutorial
- Smith, Julius O. III: Introduction to Digital Filters with Audio Applications has a nice chapter on Frequency Response
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