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1. Audio Frequency Analyzer
2. Audio Spectrum Analyzer Software Free
3. Spectrum Analyzer software, free download

• Audio Spectrum Analyzer - OscilloMeter
  Audio Spectrum Analyzer for Real-time, FFT, OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter. Multi-Tone Sound Frequency Sweep Generator. White, pink noise.
• Zelscope
  Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.
• Spectrogram
  Shareware dual channel audio spectrum analyzer for Windows 2000/XP which can provide either a scrolling time-frequency display or a spectrum analyzer scope display in real time for any sound source connected to your sound card. Can be used for MTHELL, QRSS and DFCW by R S Horne
• Spectrum Lab
  DL4YHF's Audio Spectrum Analyser Spectrum Lab or Speclab started as a simple FFT program running under DOS a long time ago, but it is now a specialized audio analyzer, filter, frequency converter, hum filter, data logger and more.Can be used for MTHELL QRSS, DFCW, PSK, MSK, Castle
• Audio spectrum analyzer
  Analyzes audio from 10 Hz to 20 kHz, input from microphone or wave file, Variable sample rates (8000 Hz, 11025 Hz, 22050 Hz, 44100 Hz)Variable transform sizes (1k, 2k, 4k, 8k)Upper and lower limits adjustableContinuous, averaged, peak hold
• HamAlyzer
  HamAlyzer is a spectrum analyzer made just for hams, save plot images easily for emailing, monogramed with your call sign.HamAlyzer looks no more supported, here 2.8 trial version available. Download hamalyzer
• Cobracom
  Oscilloscope, Realtime spectrum analyzer, Impedance meter, RLC bridge and signal generator for Windows. Is a Windows application that converts your PC into a powerful dual-trace signal analyzer (oscilloscope, FFT etc..) . Uses your PC sound card as an Analog-to-Digital a Converter to digitize any input waveformand as Digital-to-analog Converter for the signal generator.True 24 bit adc/dac 48K/96k/192k sampes/sec.
• Soundcard Audio Tools and Toys
  Soundcard audio tools and toys, experimental ideas and utilities.Signal Generator, Frequency-counter / instrument-tuner, Real-time Spectrum Analyser

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• SpectrumAnalyzer is a state-of-the-art spectrum analyzer plugin, which offers a lot of opportunities to display the spectral content of your audio material and helps you create a better mix this way. SpectrumAnalyzer comes in two editions, a free and a full version.
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• Audio Kit for iPhone- Audio Kit is a collection of four iphone applications which are essential for those working in audio and sound. A real time Spectrum Analyser, a Scope to display waveforms, an SPL Meter, and a sine wave Signal Generator.
• Audio spectrum analyzer^pop- Analyzes audio from 10 Hz to 20 kHz, input from microphone or wave file, Variable sample rates (8000 Hz, 11025 Hz, 22050 Hz, 44100 Hz)Variable transform sizes (1k, 2k, 4k, 8k)Upper and lower limits adjustableContinuous, averaged, peak hold
  [ Hits: 29983 | Votes: 53 | Rating: 3.87 ]
• Audio Spectrum Analyzer - OscilloMeter^pop- Audio Spectrum Analyzer for Real-time, FFT, OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter. Multi-Tone Sound Frequency Sweep Generator. White, pink noise.
• AudioXplorer- AudioXplorer is a sound analyzer software designed for Mac OSX, provide a real-time analysis window where you can visualize the sound spectrum and sonogram
  [ Hits: 450 | Votes: 1 | Rating: 9 ]
• Axis Spectrum Analyzer- Axis Spectrum Analyzer allows you to record audio along with sincronized 31 band spectrum analyzer readings from any audio source to be inputed into Macromedia Flash movies in an easy to integrate way. The software can also be used to display real-time audio with customized visuals on video devices such as projectors, tvs,etc.
• Baudline signal analyzer- A Linux based FFT spectrum analyzer designed for time-frequency browsing and scientific data visualization. Oscilloscope waveform, statistical histogram, accumulated spectral trace,Weak Signal reception, continuos data logging, FFT Analyzer and specialized measurement windows.
  [ Hits: 12228 | Votes: 32 | Rating: 8.85 ]
• Cobracom- Oscilloscope, Realtime spectrum analyzer, Impedance meter, RLC bridge and signal generator for Windows. Is a Windows application that converts your PC into a powerful dual-trace signal analyzer (oscilloscope, FFT etc..) . Uses your PC sound card as an Analog-to-Digital a Converter to digitize any input waveformand as Digital-to-analog Converter for the signal generator.True 24 bit adc/dac 48K/96k/192k sampes/sec.
• EIS Spectrum Analyser- Freeware program for analysis and simulation of impedance spectra
  [ Hits: 5270 | Votes: 7 | Rating: 4 ]
• Fatpigdog's Real Time FFT Audio Spectrum Analyzer- Fatpigdog's Real Time FFT Audio Spectrum Analyzer. User interface has the look and Feel of an HP Spectrum Analyzer. But, in addition to the regular Spectrum Plot, it also produces detailed Waterfall plots. The user can optimize the color map, chosing from a wide assortment of color themes. This analyzer supports multiple traces, trace arithmetic and normalization.
• FFT Explorer- A free (GPL) Linux (Xwindows GUI-based) utility that performs spectral analysis on real-time data from a sound card or other source, and can analyze the spectra of various sound file types. It can also accept data from many kinds of applications in plain-text form by way of the 'named pipe' feature of Linux
  [ Hits: 10785 | Votes: 7 | Rating: 5.43 ]
• Freq 51- Program samples the input, performs an FFT, and graphs the output
• Frequency Response Plotter- Draw static response time of an audio system. Originally intended for loudspeakers tests, is also a great tool for looking at microphone equalisation.
  [ Hits: 920 | Votes: 3 | Rating: 9 ]
• HamAlyzer^pop- HamAlyzer is a spectrum analyzer made just for hams, save plot images easily for emailing, monogramed with your call sign.HamAlyzer looks no more supported, here 2.8 trial version available. Download hamalyzer
• Linrad- Multiplatoform freeware DSP software. Linrad has its origin in software that was developed for 144 MHz EME CW but it is quite general and should be seen more like a kit for designing a receiver that a receiver for some particular usage.It can be used as a CW receiver with a small time delay and a fast waterfall graph. A dsp for conventional receiver to imporve signals readability, a spectrum analyzer.
  [ Hits: 9677 | Votes: 16 | Rating: 8.01 ]
• Mac the Scope- Mac the Scope is a professional quality signal analyzer, 1/3 octave RTA, signal generator, and more.
• MDS Spectrum Analyzer- Software for radiomonitoring, radio spectrum analysis. MDS is designed for the real time radio spectrum analysis. It performs real time activity analysis, signal search and collects spectrum data for post time analysis.
  [ Hits: 3219 | Votes: 8 | Rating: 6.88 ]
• Noise Meter- Noise Meter software for the noise meter tool by G8KBB that measure noise using a PC sound card and calculate noise figures by means of a calibrated noise source.
• PicoScope- Pico Technology have developed a wide range of professional PC-based instruments that offer all the functionality of conventional test equipment (DSO - digital storage oscilloscope, spectrum analyzer, meter), and also many features not normally available in this price range. Available functios are Oscilloscope, Spectrum Analyser, XY Scope, Meter and Measurements
  [ Hits: 13276 | Votes: 8 | Rating: 8.37 ]
• PSELab freeware- PSELab is a freeware Windows application useful to estimate power spectrum and short-time spectral distribution of signals. The application uses periodogram, least squares Prony, Burg, covariance, MUSIC and some other methods. To estimate short-time spectral distribution, the application uses short Time Fourier transform, pseudo-Wigner-Ville transform, least squares Prony, Burg, covariance, MUSIC and some other methods.
• RightMark- RightMark Audio Analyzer
  [ Hits: 4021 | Votes: 3 | Rating: 5.33 ]
• RMAA- Right Mark Audio Analyzer is a suite designed for testing quality of any audio devices, be it a sound card, an MP3 player, a consumer CD/DVD player or a radio.
• S Meter Lite Software- S Meter Lite is a no-cost program that displays your receiver's S Meter signal strength in a window by W8WWV
  [ Hits: 6824 | Votes: 4 | Rating: 2 ]
• Scan*Star- Radio monitoring and analysis tools. Scanning, searching, spectrum analysis and traffic analysis. Amateur, Industry & Government,
• Signals Analyzer- Signals Analyzer it's a a program, which is designed for the very qualitative analysis of different signals. The one of main fields of SA application is the analysis of unknown or unclear, strange signals. This programm will be very usefull to everyone from professional analysts to amateurs.
  [ Hits: 4947 | Votes: 5 | Rating: 9.8 ]
• Signals Analyzer- Signals Analyzer – it is the program, which is designed for the very qualitative analysis of different signals. The main area of SA application is the analysis of unknown or unclear, strange signals.
• SIGVIEW spectrum analyzer- Complete real time signal analysis software with wide range of powerful FFT spectral analysis tools, statistics functions and comprehensive visualization system.
  [ Hits: 11412 | Votes: 10 | Rating: 7.6 ]
• Sonograph Spektrum Analyzer- Sonogram is a highly flexible audio spectrum analyzer for the analysis of sound, music and speech signals in the frequency-domain using different algorithms.
• Soundcard Audio Tools and Toys- Soundcard audio tools and toys, experimental ideas and utilities.Signal Generator, Frequency-counter / instrument-tuner, Real-time Spectrum Analyser
  [ Hits: 14358 | Votes: 16 | Rating: 7.75 ]
• Spectra- Accurate spectrum analyzer in the range 0 - 2500 Hz, makes an accurate FFT analysis of an audio signal coming from the soundcard
• SpectraScope- SpectraScope is a simple Windows interface program allowing your computer to view up to two audio waveforms in either the time or frequency domain. The program is a Windows soft panel operating as a dual channel oscilloscope and spectrum analyzer. The useful frequency of operation is 20 to 10,000 Hz in the time domain and 20 to 20,000 Hz in the frequency domain. The program uses the computer sound card to capture the audio input.
  [ Hits: 10729 | Votes: 3 | Rating: 7 ]
• Spectrogram^pop- Shareware dual channel audio spectrum analyzer for Windows 2000/XP which can provide either a scrolling time-frequency display or a spectrum analyzer scope display in real time for any sound source connected to your sound card. Can be used for MTHELL, QRSS and DFCW by R S Horne
• Spectrum Analyzer Pro Lab- Spectrum Analyzer pro is a commercial application that will turn your computer into a modern spectrum analyzer. This will provide you with features that go far beyond the possibilities of any stand-alone hardware unit. Run under recent Windows versions, available in trial mode
  [ Hits: 948 | Votes: 2 | Rating: 10 ]
• Spectrum Analyzer Real-time FFT- Eight-channel Audio Spectrum Analyzer is a set of Real-Time Multi-Channel Gauges for investigation of data accepted from any ADC you will want or 16-, 24- and 32-bit ADC of sound card. WDM drivers support. FFT Spectrum Analysis, OscilloScope, Frequency counter, AC/DC voltmeter, Signal-to-Noise Ratio, Signal-to-Noise and Distortion, Spurious-Free Dynamic Range, Effective Number Of Bits, Total Harmonic Distortion, Inter-Modulation Distortion, Phase Shift. Special modes of dual-channel FFT spectral analysis: Separate channels spectra, Spectra of digital sum, difference, product of two signals, Spectrum of digital product of original signal and its fundamental, Spectrum of Real and Complex Transfer Function, Cross Spectrum. Standart weighing of spectra according IEC and CCIR. Oscilloscope modes (for dual-channel ADC) are: original signals, sum, difference, dependence of one channel on another, amplitude distribution of input signals.
• Spectrum Lab^pop- DL4YHF's Audio Spectrum Analyser Spectrum Lab or Speclab started as a simple FFT program running under DOS a long time ago, but it is now a specialized audio analyzer, filter, frequency converter, hum filter, data logger and more.Can be used for MTHELL QRSS, DFCW, PSK, MSK, Castle
  [ Hits: 46927 | Votes: 55 | Rating: 6.97 ]
• Spek- Spek helps to analyse your audio files by showing their spectrogram.Spek supports all popular lossy and lossless audio file formats. Spek is free software available for Unix, Windows and Mac OS X.
• TCube- TCUBE is a combination of a Spectrum Analyzer and a Two Tone Generator, with optional quadrature outputs. It can be used for measuring the intermodulation behavior of an audio circuit, and as a general purpose tool
  [ Hits: 8390 | Votes: 10 | Rating: 5.5 ]
• Virtins Technology- Offer PC based virtual instrument for electronics enthusiasts, students and professionals, including full-fledged sound card real time Oscilloscope, Spectrum Analyzer and Signal Generator.
• Zelscope^pop- Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.
  [ Hits: 70743 | Votes: 28 | Rating: 5.26 ]

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A spectrum analyzer is useful to measure the values of a signal against frequency within ranges of frequencies. Generally, it can test the spectrum of both unknown and known signals. Commonly, it measures electrical input signals. However, a combination of other signals like optical light waves and acoustic light waves are also testable using additional tools.

By testing the spectra of the electrical signals, it observes the bandwidth, distortion, dominant frequency, power, harmonics, and other components of signals in time domain waveform. This Analyzer displays the frequency on the horizontal axis and the amplitude on the vertical axis. Sometimes, a spectrum analyzer works as an Oscilloscope to provide both functions.

24me mac app. In the past, spectrum analyzers were hardware devices of large sizes. These devices were costly and only present in laboratories. Only highly professionals worked with instruments to analyze the spectrum of multiple signals. But, with the advancement of technology, this work is so easy and does not need bulky devices for analyzing.

• Best Audio Spectrum Analyzer Software For Windows, Mac, and Linux

What is Audio Spectrum Analyzer Software?

Nowadays, a large number of programs are present that can work like a spectrum analyzer. These programs only need installed sound cards to work correctly. Programs that can only analyze the audio spectrum are known as Audio Spectrum Analyzer software. These applications are providing all the features of a real spectrum analyzer. They offer a complete waveform of the original signal having all points.

Some of these include Oscilloscope, Generator, and Sweep frequency characteristics. Most of these apps have a simple and user-friendly interface to provide the best results to users. They have a high-resolution analyzer to display signals in real-time. Some programs are providing custom audio samples to enhance your work experience. Most of these applications include Visual Analyzer for the best enhancement. You can work with multiple commands to change the primary settings.

Best Audio Spectrum Analyzer Software For Windows, Mac, and Linux

Here is the list of open-source audio analyzer software that are present for all major operating systems like Windows, Mac, and Linux. Most of these apps have downloaded versions, but some are providing services online.

1. Visual Analyzer

Visual Analyzer is a reliable program having the aim to analyze the audio of any source. The program has resemblance with Visual Analyzer and can show the rough points on the screen so that you can analyze signals having frequencies over 3000/5000 Hz. Working with this app, you can also get a perfect waveform having total points of a real signal. Plus, it is assisting you in applying a sinusoidal signal with a range of 15 to 20 Khz.

The simple primary window of the program allows the user to adjust the settings from the right panel. The user can enable the Cepstrum tool; in this way, the scope window will show the ‘cepstrum’ of the signal. He can work with Visual Analyzer in two different ways, the ‘Floating’ and the ‘Standard’ mode. In the beginning, you will well get the ‘Standard’ mode, and you can move to other modes from the upper menu.

All features of this program are present in the main window to specify dimensions. This window also displays the spectrum and the scope window. A set of commands is also present in the Setting window. In the ‘Floating’ mode, you will get multiple buttons without the main window and commands like Spectrum Analyzer, Oscilloscope, and other commands.

Features

• Standard mode
• Floating mode
• Apply a sinusoidal signal
• View perfect waveform
• Analyze signals

Pros

• Enable the Cepsturm feature
• Spectrum Analyzer tool
• Multiple commands

Cons

• Does not support oscilloscope measurements

Download: Visual Analyzer for Windows

2. AUDio MEasurement System

AUDio MEasurement System is an exciting program that can enhance your working experience regarding frequency analysis. It is a useful tool to measure audio by using the sound card in the computer. Multiple handy features are present in this application. The simple and straightforward interface of the AUDio MEasurement System can work smartly and helps you to have a look at all features instantly.

It is a portable program, and you can work with it without installation. Just click the icon and start analyzing. You can also take it with you in a USB drive to run it on multiple systems anytime and anywhere. Some of the useful features of the program are FFT, Generator, Oscilloscope, and Sweep frequency characteristics.

It is a pretty small program with many advanced features to facilitate both professionals and new ones. It a cross-platform application for audio measurement and is compatible with Windows and Linux. Overall, it is a handy app to audio testing in seconds.

Features

• Generator
• Oscilloscope
• Sweep frequency

Pros

• Portable version
• FFT Spectrum Analyzers
• Use the sound card for analysis

Audio Frequency Analyzer

Cons

• Limited features

3. Friture

Friture is a fast audio analyzing program having a set of tools and widgets to test audio data. It assists professionals in analyzing an audio single to get info about the characteristics of the signal, such as harmonics, fundamentals, and feedback. It can also show the receiver, source, and room behavior like gain peaks and reverberation. The user can also set adjustments in the preprocessing such as room equalization.

Work with the 2D spectrogram tool to view audio data against both time and frequency. It fixes the time-frequency resolution according to the window length of the Fourier transform. The spectrum widget is also a handy tool to view audio data against frequency. In this way, a person can visualize the properties of the signal like harmonics, fundamental frequency, and feedback frequencies.

Plus, this tool also shows the peaks for each frequency part. It has a label to point out the frequency of the global maximum. Work with delay estimator to get time delay among two input channels, useful to set speakers in a room. The cross-correlation algorithm is part of it for delay estimation. The octave spectrum feature can show audio data against time, just like the Spectrum tool. It makes groups of audio data in frequency bins. The outcome of a fraction-of-octave filter will display on each frequency bin.

Features

• Level widget to show peak power
• Delay estimator
• Octave Spectrum widget
• Scope tool to show audio data versus time

Pros

• 2D spectrograms
• Audio data versus frequency
• Characteristics of signals

Cons

• Errors on Windows versions
• Hanging problem

Download: Friture for Windows | Mac | Linux

4. TrueRTA

TrueRTA is an audio analyzer software designed to test and run a complete analysis of sound systems. It uses a measurement microphone, your PC, and a USB interface for such testing. A user-friendly interface of TrueRTA contains handy features and provides quick access to all functions and features. Some of the exciting features are a digital level meter, a low distortion, a dual-trace oscilloscope, a crest factor meter, and a high-resolution analyzer.

It has a large display area to show a graphical representation of Oscilloscope, analysis, and RTA modes. A simple panel is there to provide control over a generator and assists you to adjust amplitude, frequency and wave type. Work with TrueRTA to choose the channel, the output and input sampling frequencies, and the audio device. According to hardware configuration, it enables the user to set the internal buffer size of this tool to get the best possible synchronization between voice and display.

For the Oscilloscope, he can use and get a waveform of the inserted signal. Besides, he can adjust the input voltage and oscilloscope time base. He can toggle between right and left channels as fundamental for the sweep triggering. To work as the spectrum analyzer, it provides a panel in the primary window to adjust the settings.

Features

• Graphical representation of analysis
• Control the generator
• Choose the channel
• Adjust input and output sampling frequencies

Pros

• Adjust internal buffer size
• View a waveform
• Set Input voltage
• Adjust time base
• Visual Analyzer
• Measure the frequency response

Cons

• Does not offer Oscillator tool

Download: TrueRTA for Windows

5. Oscilloscope

Oscilloscope is an open-source audio analyzer software that works as a real-time oscilloscope. This compact program enables the user to visualize the audio waveform by using the system sound card. It is a standard oscilloscope to analyze an audio signal. For working with this program, you have to connect audio testing equipment with your sound card. Work with a microphone or other devices for analyzing sound signals.

The primary window of this app shows the graphical presentation of the audio signal and assist the user in configuring the delay, sweeping, and gaining parameters. Bijoy 52 2016 for windows 10. Besides, he can work with numerous graph types to read real-time spectra. The program enables the user to save the capture data to a DAT file for comparing multiple intervals or signals for the same sound input. To collaborate with other applications, he can copy the waveform information to the clipboard.

Oscilloscope contains a spectrum analyzer to show the amplitude spectrum through channels for the sound receiver. For working with dual-trace mode, he can use the phase adjustment tool to adjust the information before measuring the phase shift. The clean interface offers access to all the controls. Documentation is part of it to train new ones. It is a portable program, and you can work with an Oscilloscope without installation.

Features

• Documentation
• Clean interface
• Adjust data from phase shift measurements
• Phase adjustment tool
• Visual Analyzer

Pros

• Move the waveform to clipboard
• Save data to a DAT file
• Work with various graph types
• Configure parameters

Cons

• Difficult to use for new ones

6. Real-time Spectrum Analysis

Real-time Spectrum Analysis is a versatile, cost-effective, and intuitive program that is offering three visualization modes like Persistence, Spectrogram, and Time domain. The clean and straightforward interface is part of it having handy tools to sound measurements. Standard settings like Bandwidth, Amplitude, and Frequency are present on the main window, and other functions and settings are present in a menu system. You can get each set using few clicks.

Additionally, you can save custom settings keeping in view the spectrum center and front. It can work with 100 kHz, 10 MHz, 40 MHz, and 100 MHz and provide a clear image of any tool such as situation awareness, measurement, and test, or real-time spectrum monitoring. You can select visualization mode depending on your analysis needs. It provides automatic measurements like Occupied Bandwidth mode and Channel Power with a single click.

Numerous trace types, different markers, and built-in vertical and horizontal cursors can quickly analyze all signal related parameters. You can work with correction algorithms to get a complete view of the spectrum. Plus, it provides you the option to record and save data for later in-depth analysis in real-time. Work with triggering tools to manage the file size and capture the only part of your interest.

Features

• Frequency settings
• Bandwidth settings
• Amplitude settings
• Intuitive menu system
• Save customize settings

Pros

• Three viewing modes
• Channel power
• Bandwidth mode
• Multiple trace types
• Numerous markers
• Vertical and horizontal cursors

Cons

• Advanced features are missing

Download: Real-time Spectrum Analysis for Windows

7. Audiotool

Audiotool is a straightforward music creation application designed for music lovers. It is an online music listening platform directly accessible from your browser. If you want to listen to the latest music, created by the vast community of the platform, go to the Music Area. The music area includes thousands of soundtracks, and you can listen to them free. It provides you the option to insert individual tracks to your creating album or add them in your favorite section.

In this way, you can arrange your EDM tracks in preferred categories. It offers the ability to create songs from scratch, making it different from other music platforms. Start your work by clicking the App button. It includes many tools to enhance your music, creating ability. This online platform contains synths, drums, and many effects like delay, phaser, reverb, and crusher.

Drag and drop mechanics is behind its user interface, helping you to add new components to your task efficiently. Plus, you can get access to thousands of samples created by others. The built-in publishing platform is part of it, and you can publish your tracks on the website as well as on other platforms like YouTube or Soundcloud.

Features

• EDM tracks
• Arrange music in categories
• Add tracks to albums
• Create music from scratch

Pros

• Online music platform
• Contains music effects
• Add new components to music
• Built-in publishing platform

Cons

• Frequency measuring tools are missing

Visit:Audiotool

8. Zelscope

Zelscope is a reliable and useful program created to change your computer into a spectrum analyzer and Oscilloscope. It can show the phase components and amplitude of the spectrum. The interface of Zelscope is like a traditional oscilloscope. It provides multiple features to control offset, conventional gain, trigger, and time base.

For working with this program, a system faster than 300 MHz is needed with installed drivers of the sound card. You can export your raw data as WAV file as well as can save screenshots to EMF and BMP formats. Additionally, copy-paste functions are there for both data files and screenshots. Its interface includes three modes, such as XY, single trace, and dual trace.

You can work with a spectrum analyzer tool to analyze both the phase and amplitude of a soundtrack. The application offers time and voltage difference readout as well as direct frequency readout. It enables the user to adjust the slope, delay, and trigger level. He can work with single-shot triggering mode and can get a retrigger view.

Features

• Left and right click cursor sets
• Direct frequency readout
• Spectrum analyzer

Pros

• 8-bit and 16-bit acquisition
• Single and dual-trace modes
• Export files to WAV format
• Work with the copy-paste function

Cons

• Does not support frequency analysis

Download: Zelscope for Windows

9. Sound Card Spectrum Analyzer

Sound Card Spectrum Analyzer is a fast spectrum analyzing program for Windows systems. The application includes a real-time oscilloscope as well as a spectrum analyzer. It provides the facility to its users to continuously monitor the input signal and don’t miss any triggering events. The program provides a screen refresh rate of around 50 frames per second. For triggering methods, it supports post-triggers and pre-triggers.

The dual-channel Oscilloscope feature has the ability to provide four views, and each picture includes waveform data differently. This exciting app can also combine the information or separately shows data from each channel. For channels A and B, it gives a Lissajous pattern display in a real way. A dual-channel spectrum analyzer is a new tool that gives four real-time views like amplitude spectrum display, cross-correlation display, phase spectrum display, and autocorrelation display.

The user can adjust FFT points in a range between 128 and 32768. Besides, he can access choosable windowing tools like Hanning, Rectangle, Triangle, Blackman, and Hamming. It uses the sound card of your system to provide a dual-channel oscilloscope and channel spectrum analyzer. The program supports multiple languages such as English, German, French, Spanish, Portuguese, Chinese, Korean, and more.

Features

• Configure font size, and colors
• Export results to TXT format
• Zooming and scrolling
• Save data curves to BMP format
• Amplitude spectrum
• Adjust FFT size

Pros

• Record length to different sizes
• Amplitude spectrum display
• Multiple measurements
• Supports marks and cursor reader

Cons

• Difficult to use

Download: Sound Card Spectrum Analyzer for Windows

10. Spectrum Audio Analyzer Pro

Spectrum Audio Analyzer Pro is a robust analyzer that provides complete measurements of both output and input signals. It is a new tool for both music producers and sound engineers. This application is those people who have previous knowledge of spectrum analysis. The interface of the program contains everything well organized.

It facilitates you to encode WAV to MP3 and vice versa, divide the stereo signals into two mono files and normalize wave files. This program can work as a mobile instrument to test and calibrate the data for speakers, microphones, and chambers. Work with the ‘Sound Check’ tool to get frequency response measurements for custom and given audio samples. It will save your time for sound checking for concerts.

The ‘Compare’ feature is there to test the output and input between line levels simultaneously. It integrates a WAV/MP3 player to check modifications in the sample rate. Spectrum Audio Analyzer Pro assists you to alter the display mode of the Analyzer for peaks, bars, lines, scroll, and vertical lines. You can also toggle between mon and stereo analysis methods. Besides, change the outfit of the spectrum, its draw, and the decay scale.

Features

• Customize outfit of spectrum
• Select between mono and stereo analysis methods
• Detect modifications
• Perform audio checks for concerts

Pros

• Encode WAVE to MP3
• Normalize wave files
• Split the stereo signals

Cons

• Need basic knowledge before use
• Does not support oscillation feature

Pricing

• Spectrum Analyzer pro Live: $99
• Spectrum Analyzer Pro Lab: $149
• Graphic Equalizer Studio: $49

Download: Spectrum Audio Analyzer Pro for Windows

The Verdict

Audio Spectrum Analyzer Software Free

Overall, these programs are providing the most straightforward and fast tools for your work and make your work easy by working fast. You have the option to convert audio files between multiple formats. Some professionals programs need previous knowledge of spectrum analyzing before use. Many of these programs work as traditional Oscilloscopes to provide you control over offset, conventional gain, trigger, and time base.

Spectrum Analyzer software, free download

Few programs help you to create your music from scratch and offer you significant effects for such purposes as delay, phaser, crusher, and reverb. Professional Spectrum Analyzer provides different views for dual-channel Oscilloscope and dual-channel spectrum analyses. They support pre-triggers and post-triggers. You can also adjust FFT points in a better way.