Программа анализатор спектра звука для windows 10

Всем привет, сегодня представляем вашему вниманию небольшой набор из анализаторов спектра для мониторинга звука ваших инструментов и эффектов.

Важнейшим этапом в обработке является анализ сигнала. Анализатор спектра — это прибор как раз позволяющий «визуализировать» звук, и помогающий обнаружить как частотные конфликты так и другие неточности. Каждый раз, когда любой аудио-сигнал поступает в анализатор, программа работает и строит график, который отображает частотную характеристику сигнала, равно как и громкость каждой отдельно взятой частоты.
Но ни в коем случае не стоит забывать про свои уши, ведь можно пойти по ложному пути долго занимаясь разглядыванием графиков. Главное помните, слух — наше все.

SPAN от Voxengo

SPAN высокоточный, не требовательный к ресурсам спектральный анализатор от отечественного программиста Алексея Ванеева. Плагин имеет хорошо продуманный и нереально удобный интерфейс, с возможностью изменения масштаба окна. Спектральный анализатор работает в режиме реального времени и использует алгоритм основанный на быстрых преобразованиях Фурье (алгоритм позволяющий сократить время спектрального анализа). В целом это очень качественный и удобный анализатор с достаточным количеством настроек для отображения данных, и что не мало важно бесплатный.

Скачать можно по ссылке: SPAN

FreqAnalyst от Blue Cat Audio

Blue Cat’s FreqAnalyst это анализатор спектра с высокой степенью разрешения для полного контроля над анализом содержимого вашего аудио сигнала. Его гибко настраиваемый пользовательский интерфейс с функцией «прозрачности» позволяет полностью интегрироваться в вашем аудио приложении, проверить спектр и не закрывая поместить позади. Специально разработанная система определения порога входящего сигнала, поможет вам с легкостью определится с важными частями спектра. Либо вы можете с увеличением масштаба дисплея проверить только интересующую вас часть на графике.

Скачать можно по ссылке: Blue Cat’s Freq Analyst

SSpectrumAnalyzer Free от SIR Audio Tools

SpectrumAnalyzer Free бесплатный многоканальный спектра анализатор с возможностью визуализации сигнала с двух звуковых дорожек. Он показывает соотношение громкости и частоты звука, гармоники, ширину полос, а также преобладающие частоты.
Плагин в реальном времени может произвести анализ двух источников сигнала рядом друг с другом, что будет крайне полезно при настройке эквализации в случае обнаружения конфликтующих частот. Анализатор также включает в себя аналоговое отображение, FFT и позволяет пользователю настроить мониторинг пиков, время задержки эквализации и анализ RMS.

Скачать можно по ссылке: Spectrum Analyzer Free

Sonogram SG-1 от ag-works

Sonogram SG-1 быстрый и подробный спектральный анализ в реальном времени.
Плагин немного отличается от других анализаторов, и является на самом деле сонограммой (она же спектрограмма), но по сути это просто другой тип анализатора спектра. Попробуйте воспользоваться им при анализе ваших последних миксов, например, чтобы проконтролировать очень высокие частоты.

Скачать можно по ссылке: Sonogram SG-1

The Seeker от Himiltungl Labs

Himiltungl Labs The Seeker быстрый и динамический анализатор спектра, с безумным расширением вплоть до 1/192 октав. Двойной график отобразит динамику и амплитуду одновременно, а гибкое время интеграции в пределах 10 — 500 мс отлично подойдет для различных типов материала. Плагин оптимизирован для более низкого использования ресурсов ЦП, имеет возможность изменения размера, и позволяет сделать минимальный пользовательский интерфейс.

Скачать можно по ссылке: The Seeker

#free #analyzer #spectre #бесплатные_программы

If you are searching on the internet for a good Audio Spectrum Analyzer to download, then you are at the right place. The tool helps you check the overall frequency balance of an audio mix or compare it with other sound data.

You will get detailed information about the audio from the graphical representation of sound data against frequency and amplitude.

Before choosing a spectrum analyzer, you must consider the number of tools present in it, the accuracy of the analyzer, compatibility, and most importantly, the pricing.

Our list will help you study the features offered by each audio spectrum analyzer for Windows. Then, you can compare them to choose the best one for yourself.

1. Friture
2. Visual Analyzer
3. Oscilloscope
4. TrueRTA
5. AudioTool
6. Zelscope
7. Spectrum Analyzer Pro
8. Virtins Spectrum Analyzer
9. AUDio MEasurement System
10. Real-Time Spectrum

1. Friture

It is a professional-level audio analyzer developed to test audio data. The software lets you analyze and classify different audio signals like fundamentals, feedback, and harmony. You can also adjust and modify any audio data using the tools present in it.

Moreover, Friture features a 2D spectrogram to plot the audio data against time and frequency. However, the only problem that you may face is the complex user interface.

Price: Free

Download

2. Visual Analyzer

If you want a frequency analyzer with several tools, the Visual Analyzer will be a good choice. The software uses the sound card to measure audio in a Windows PC. Some of the software’s advanced tools include an oscilloscope, spectrum analyzer, waveform generator, etc.

You can use it for frequency sampling of 4410Hz, with a 16-bit resolution. It also supports the plotting of raw points on the screen, allowing you to analyze signals easily.

Price: Free

Download

3. Oscilloscope

This is one of the best freeware that you can use for audio analysis on a Windows PC. An oscilloscope is an open-source software with unique options to visualize waveforms of audio daIn addition.

You can directly connect your audio testing equipment to your PC to monitor different aspects of audio input.

Users can use an Oscilloscope to detect any delay, sweeping order noise grains in their audio. The program also lets users save the captured data for comparison later on.

Price: Free

Download

4. TrueRTA

TrueRTA is such an audio analysis software that can be modified in several ways to make a personified program for Windows PC. You will only need a measurement microphone and USB interface to get a full audio test setup at your home.

TrueRTA comes with an Octave spectrum analyzer, dual-trace oscilloscope, and a signal generator. The audio spectrum analyzer is initially free to use with all its basic functionalities. But after that, you can buy different professional tools as per requirements.

Price: Free

Download

5. AudioTool

It is a multi-purpose audio spectrum analyzer with an interactive user interface suitable for new users. The software offers multiple visualization modes, including persistence and time-dominant spectrogram.

Along with the basic functionalities, you will also find handy settings for amplitude, frequency, and bandwidth on its homepage.

Moreover, AudioTool enables you to insert a predefined frequency rephrase compensator tool for microphones. Altogether the software is worth giving a try.

Price: Free

Download

6. Zelscope

If you need a dual-trace storage oscilloscope with the best in the-class spectrum analyzer, then Zelscope will be a perfect option for you.

The software converts analog signals to digital ones with the help of your computer’s sound card to get visual effects.

Apart from modern technologies, you will also get traditional tools with Zelscope audio spectrum analyzer.

The best part of the software is the easy-to-use interface. However, the audio analyzer is not freeware, and the price starts from $9.95.

Price: Paid

Download

7. Spectrum Analyzer Pro

Our next inclusion is an audio spectrum analyzer that lets you analyze audio data on a real-time basis. You will never miss any triggering event while using Spectrum Analyzer Pro. The software also can automatically correct all your audio files and sound streams on a PC.

The professional tool is used mainly by forensic technicians, police officers, and other professionals. Therefore, you will get different price plans for Spectrum Analyzer Pro.

Price: Paid

Download

8. Virtins Spectrum Analyzer

Another powerful audio analyzer software that you can try to use is Virtins Spectrum Analyzer. The software comes with several helpful features to create a professional audio spectrum analyzer in your Windows PC.

You will get several analyzing tools that include real-time amplitude spectrum, real-time face spectrum, real-time autocorrelation, and others. The software has a straightforward user interface with easy settings. So, the software will be suitable for all types of users.

Price: Free

Download

9. AUDio MEasurement System

Great for audio measurement through the sound card in the PC, the AUDio MEasurement System has been available in the market for a while. It has other notable features to accomplish different tasks, along with an audio spectrum analyzer.

The software can create a real-time plot of input audio signal in dB vs. Hz with great accuracy when used as an audio spectrum analyzer. Other than that, each tool is available to accomplish different tasks to audio more efficiently.

Price: Free

Download

10. Real-Time Spectrum

Even though Real-Time Spectrum is not feature-rich like other software, but it has everything you would need as an audio spectrum analyzer.

Most importantly, you can view four types of waveform for real-time input audio, such as Spectrum, Cepstrum, Smoothed Spectrum, and Filterbank.

One of the best things is that you can view maximum frequency, frame rate, and dynamic range on the audio spectrum visual.

Price: Free

Download

Here are the best free spectrum analyzer VST plugins to use with your favorite VST-supported software. We’ve included spectrum analyzer plugins for PC and Macs.

What Is A Spectrum Analyzer?

Spectrum analyzers are tools that allow you to view the spectral content of an audio signal in real-time. This can be useful for measuring the frequency balance and tonal characteristics of a sound and identifying problem frequencies in a mix.

There are many different spectrum analyzers available, both free and paid. Some of the most popular ones include Voxengo’s Span and FabFilter’s Pro-Q 2.

We recommend trying out some free plugins before spending money on something more expensive if you’re just starting out.

These apps can be used with all major digital audio workstations including FL Studio, Apple Logic Pro, Ableton Live, Pro Tools, and other VST host applications.

Boost your audio projects without spending a dime with a large selection of free VST plugins.

There are several different spectrum analyzer plugins available to choose from. Below are our picks for the best spectrum analyzer plugins available for free.

1. Voxengo SPAN
2. Blue Cat’s FreqAnalyst
3. Voxengo SPAN Plus
4. SpectrumAnalyzer
5. MAnalyzer
6. MultiFreek Junior
7. adc-StereoScope
8. Voxengo AnSpec
9. Freakoscope
10. ALIVE beta (Tester)
11. LSP Spektrumanalysator
12. The Seeker
13. VPS Scope
14. Sound Rider
15. Spectrum Analyzer
16. Oscarizor
17. DRAnalyzer
18. Dust Analyzer
19. LVC-Meter
20. Specan32
21. QspectPro
22. MultiInspectorFree

Instructions: Click the links below to visit each spectrum analyzer. Look around each website for the download link or button. Do not install any suspicious software.

1. Voxengo SPAN

Voxengo SPAN is a free spectrum analyzer plugin that offers great versatility and features for audio analysis.

It has smoothing capabilities to help you view frequencies more clearly, and it also supports stereo and multi-channel analysis.

You can even resize the user interface window to fit your needs. The plugin also provides true peak and clipping statistics and a correlation meter to help with stereo imaging.

There’s also a preset manager for effortless saving and loading of your settings, as well as an undo/redo history.

SPAN is compatible with all sample rates, and it also comes with several color schemes to choose from.

If you need to compare two different spectrum analyses, the A/B comparisons feature will come in handy. There is also a paid extended version of this plugin.

• Fast Transform Spectrum Analyzer
• Surround Sound Spectrum Analyzer
• Stereo Meter
• True Peak Level
• Set up Your Own Spectrum Analyzer Preferences
• Clipping Detector

Voxengo SPAN | PC / Mac

Voxengo SPAN Preview

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2. Blue Cat’s FreqAnalyst

Blue Cat’s FreqAnalyst is a spectrum analyzer with stereo and mono real-time monitoring. It controls the audio to frequencies transformation and provides extreme display smoothness.

You can even zoom the display with multiple sizes, and it also has custom absolute and relative thresholds.

This plugin is a great free alternative to Blue Cat’s Oscilloscope Multi, Blue Cat’s FreqAnalyst Pro, and the Blue Cat Audio DP Meter Pro.

• Mono & Stereo Real-Time Spectrum Analysis Tools
• Frequencies Transformation
• Smart Interpolation Algorithm
• Zoomable Display
• Absolute & Relative Thresholds
• Full Midi Control
• Automation Support
• Midi Learn Features
• No Cpu Load
• Customizable User Interface
• Transparency & Zoom
• Add to Master Channel
• Undo & Redo
• Presets Manager
• Factory Presets
• All in One Plugin Instance
• All Sample Rates Supported

Blue Cat | PC / Mac

Blue Cat Preview

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3. Voxengo SPAN Plus

Voxengo SPAN Plus is a spectrum analyzer VST plugin with a user interface that’s more adjustable and customizable than most other spectrum analyzer plugins, letting you tailor the experience of spectrum analysis to your particular way of working.

One of the critical features of Voxengo SPAN Plus is its ability to import and export spectrum data from/to multiple audio tracks, making it easy to compare spectrum data between different tracks.

You can also export spectrum data as PNG files for further analysis in other programs.

Smoothing spectrum data is also possible with Voxengo SPAN Plus, and you can view actual peak and clipping statistics, as well as a correlation meter.

Analysis can be done in stereo or multi-channel mode.

If you’re looking for a spectrum analyzer with a deep level of customization, Voxengo SPAN Plus is worth checking out.

• Correlation Meter
• Spectrum Comparison
• Png Spectrum Snapshot Export
• Wide Spectrum View
• Surround Spectrum Analyzer
• K-System Meter
• Clipping Detector

Voxengo SPAN Plus | PC / Mac

Voxengo SPAN Plus Preview

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4. SpectrumAnalyzer

SpectrumAnalyzer is a spectrum analyzer plugin that offers many opportunities to display the spectral content of your audio material.

It helps you create a better mix with its state-of-the-art spectrum analyzer.

SpectrumAnalyzer offers a mode based on bandpass filters, and not only FFT like many others.

This allows a much better oversight of the frequency balance of a mix. It comes in two editions, a free and a full version.

So if you’re looking for an analyzer plugin that goes beyond the basics, SpectrumAnalyzer is a good choice.

This spectrum analyzer is a free alternative to MeldaProduction MMultiAnalyzer, Izotope Insight, NUGEN Visualizer, and the Waves spectrum analyzer plugin.

• Analog-Style Bandpass Analyzer
• Freeze & Snapshots
• Side Chain Support
• Fourier Transform Analyzer
• Peak Meter
• Stereo Correlation Meter
• Peak Detection
• Peak Focus
• Show Multiple Channels
• Spectrum RMS
• Scalable Interface
• Spectrum Smoothing
• Freeze Button

Plugin | PC / Mac

Plugin Preview

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5. MAnalyzer

MAnalyzer is an advanced spectrum analyzer and sonogram containing unique features such as smoothing, normalization, super-resolution, prefiltering, and deharmonization.

If you’re looking for a more sophisticated spectrum analyzer that can provide you with detailed information about your audio signal, MAnalyzer is worth checking out.

MAnalyzer | PC / Mac

MAnalyzer Preview

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6. MultiFreek Junior

MultiFreek Junior is a freeware multi-channel spectral analysis for Windows. It can analyze up to 7 different tracks simultaneously, and each track has a different name and color.

Additionally, there are two different processing modes – efficient and precise.

These modes affect how accurately the spectrum is calculated in relation to the time resolution.

• Supports Up To 7 Tracks
• Distinct Color Graph
• Two Processing Modes
• Efficient and Precise

MultiFreek Junior | PC / Mac

MultiFreek Junior Preview

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7. adc-StereoScope

If you’re looking for an easy way to visualize the spectrum of your audio signal, adc-StereoScope is an excellent option.

This plugin is free for Mac, and it offers a variety of features that make it a perfect choice for spectrum analysis.

adc-StereoScope has a spectrum display that shows the amplitude of your signal at different frequencies.

You can easily zoom in and out of the spectrum to get a closer look at specific frequencies.

• Real-Time Spectral Analyzer
• Resizable Window
• 2 In & 2 Out

adc-StereoScope | Mac

adc-StereoScope Preview

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8. Voxengo AnSpec

Voxengo AnSpec is a spectrum analyzer VST plugin for Windows and Mac.

This spectrum analyzer provides a 1/3 octave analog-style spectrum analysis, peak level indication, slope control, and stereo/mono analysis.

Voxengo AnSpec has a resizable user interface with color schemes to choose from.

Also, the user interface can be zoomed in and out for better viewing.

Voxengo AnSpec | PC / Mac

Voxengo AnSpec Preview

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9. Freakoscope

Freakoscope is a spectrum analyzer VST plugin with all the functions you need.

These include window size selection, frequency zooming, and freeze option.

You also get a peak hold function that displays the maximum amplitude for a specific spectrum.

• Window Size Selection
• Frequency Zooming
• Freeze
• Peak Hold
• Cursor Information
• Frequency Scales
• Spectrum Averaging
• Spectral Centroid
• Dominant Pitch

Freakoscope | Windows / Mac

Freakoscope Preview

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10. ALIVE beta (Tester)

This spectrum analyzer VST plugin is still in beta, but it’s already available for free.

It features a spectrum display to help you see what’s happening with your audio.

You can also see the waveform, making it easier to identify problem areas.

The plugin also includes a spectrum analyzer, so you can see how your audio is changing over time.

This can help identify problems and make adjustments.

ALIVE beta | Mac

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11. LSP Spektrumanalysator

LSP Spektrumanalysator is a Linux-only spectrum analyzer VST plugin that can analyze 16 independent channels simultaneously.

It does not affect any changes in the input signal, so it can be placed anywhere where the metering is needed.

If you’re looking for a spectrum analyzer that can be used on Linux, this is a great option. You can use it for free, without any restrictions.

LSP Spektrumanalysator | Linux

LSP Spektrumanalysator Preview

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12. The Seeker

This is a spectrum analyzer VST plugin that helps you quickly view the spectrum of your signal.

It displays graph axis values under the cursor, and you can set the spectrum scale level to adjust for low or high signals.

If you’re looking for a spectrum analyzer VST plugin with a fast, dynamic display, The Seeker is a great option. It is available for both Windows and Mac.

• 192 Spectrum Resolution
• 10 – 500 ms Integration Time
• Low CPU-Usage
• Dual Graph
• Resizeable
• Minimal User Interface

The Seeker | PC / Mac

The Seeker Preview

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13. VPS Scope

VPS Scope is a spectrum analyzer plugin featuring scope, spectral analysis, and stereo field analyzing capabilities.

This plugin is an excellent option for users looking for an analyzer with more features than the basic ones.

VPS Scope is available for both Windows and Mac, making it a versatile option for users of different operating systems.

VPS Scope | Windows / Mac

VPS Scope Preview

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14. Sound Rider

Sound Rider is one of the best spectrum analyzer VST plugins because it provides a unique perspective on your sound.

This tool, compatible with Windows only, gives you the ability to navigate a 3D representation of your sound signal in your DAW.

Sound Rider also features the traditional horizontal frequency scale and vertical decibel scale, making it a powerful audio spectrum analyzer tool you can use in your workflow.

• Averaging & Peak Display
• Peak & RMS Meter
• Stored User Views
• 3D Spectrum Analyzer VST

Sound Rider | Windows

Sound Rider Preview

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15. Spectrum Analyzer

Spectrum Analyzer is a real-time audio spectrum analysis VST plugin that is versatile and easy to use.

Unlike most other analyzers available these days, this plugin is not FFT-based but utilizes filter-bank algorithms that mold its unique pros and cons.

One of the plugin’s main advantages is that it is straightforward and doesn’t require any unique settings.

It features a wide range of options that should satisfy even the most demanding users.

• Resizable Display Window
• Simultaneous Peak
• Curve Fill Modes
• Adjustable Ballistics
• Customizable Colors
• Supports All Sample Rates

Plugin | Windows

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16. Oscarizor

Oscarizor is a powerful spectrum analyzer VST plugin with ten channels of simultaneous view.

It also has additional features like 360-degree three-axis rotation, free positioning, and zooming, making it easier for users to understand the data.

The beat and measure display can be adjusted according to the user’s needs.

It also offers a DB and amplitude view. Also, you can freely resize the plugin with a very small to enormously large GUI.

• Parametric Multi-Analyzer
• Waveform Spectrum Comparison
• DAW Synchronization
• Automatic Instrument Tuner
• Multi-Channel Correlation
• Unlimited DAW Instances
• 10 Channels View
• Parallel & Overlay View Modes
• Stereo & Mono View
• Custom UI
• Waveform Coloration
• Sine Tone Generator
• Mouse Wheel Zoom in & Out
• Preset Manager
• A/B Comparison
• Compression Tunings
• Limiting Fine-Adjustments
• Envelope Shaping Analyzations

Oscarizor | Windows / Mac

Oscarizor Preview

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17. DRAnalyzer

DRAnalyzer is a spectrum analyzer that can analyze the dynamic range for each band.

You can also correct the spectrum according to human auditory characteristics, so you can see the sound as it is heard.

The plugin is one of the few spectrum analyzers on this list available for Windows users only. However, it’s a great tool with many features to help you understand your audio.

DRAnalyzer | Windows

DRAnalyzer Preview

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18. Dust Analyzer

Dust Analyzer is a configurable spectrum analyzer that can be used to help you track and monitor dust levels in your environment.

The peak-hold feature can be used to track spikes in dust levels, and the log-frequency dB-scale spectrum can help you identify problem areas.

The vertical division of the spectrum can be set to 10dB/line, which can help you resolve issues more quickly. Dust Analyzer is a free spectrum analyzer plugin available for Windows users only.

• Vertical Division
• Freeze Option
• Find Clashing Frequencies
• Peak Hold
• View The Spectrum’s Visual Slope
• Dark Mode

Dust Analyzer | Windows

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19. LVC-Meter

LVC-Meter is a spectrum analyzer plugin with stereo vectorscope and waveform history view. It includes an adjustable true-peak level, a resizable interface, and user-configurable colors.

It has configurable spectrum analyzer settings that make it perfect for beginners and advanced users.

• Adjustable True Peak Level
• Preset System
• Resizable Interface
• User Configurable Colors
• Configurable Analyzer Settings
• Exporting User Presets

LVC-Meter | Windows / Mac

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20. Specan32

Specan32 is a spectrum analyzer that makes tracking your contacts and interactions easy.

The 1/3rd octave spectrum analyzer helps you see how you’re performing by providing an accurate frequency spectrum display of the sounds being played.

The spectrum analyzer is easy to use and provides a great way to track your progress.

• 32 bit / 64 bit

Specan32 | Windows

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21. QspectPro

QspectPro by ConcreteFX is a simple spectrum analyzer that can be customized to fit your specific needs, making it the perfect plugin for any audio engineer or musician.

Whether you’re working on a new track or trying to diagnose a sound issue, QspectPro will come in handy.

• Start Frequency
• Finish Frequency
• Bar Decay
• Q-Factor
• 64 Bars

QspectPro | Windows

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22. MultiInspectorFree

The MultiInspectorFree spectral analyzer is perfect for anyone needing a reliable and accurate frequency analysis tool.

This plugin supports up to 4 instances at a sample rate of 44.1 kHz, making it a versatile tool for any musician or audio engineer.

With 31 bands and multiple tracks, it offers comprehensive coverage of the audible spectrum.

An octave-scale frequency analyzer is also included, making it easy to identify specific frequencies.

• Up To 4 Instances
• 31 Band ModeF
• 44.1 kHz Sample Rate

MultiInspectorFree | Windows / Mac

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Spectrum analyzers are essential tools for music producers. They allow you to see the frequency range of a signal, which is essential for understanding how different sounds interact with each other.

These plugins are great for mixing and mastering audio.

These plugins are great free alternatives compared to paid plugins such as Blue Cat’s Oscilloscope Multi, FreqAnalyst Pro, DP Meter Pro, Izotope Insight, NUGEN Visualizer, Waves Spectrum Analyzer, SIR2 by SIR Audio Tools, and the MeldaProduction MMultiAnalyzer.

We hope you found this list of free spectrum analyzer VST plugins helpful.

If you have any suggestions for plugins to add to this list, please share them below.

You May Also Like:

• Best Free Equalizer VST Plugins
• Free Oscilloscope VST Plugins

Here is a list of best free audio spectrum analyzer software for Windows. These spectrum analyzer software let you visualize audio spectrum for real-time signals. In some of these audio analyzer software, you can analyze amplitude and phase spectrum as well. Also, you can visualize audio spectrum in FFT spectrum, 2D spectrogram, Octave spectrum, etc. modes. Moreover, they let you specify frequency range, amplitude range, and many other audio parameters to analyze the defined range of audio signals.

With the help of some of these software, you can have information about the instantaneous frequency, mean value, crest factor, form factor, RMS voltage, audio intensity, etc. Most of these audio spectrum analyzers also provide oscilloscope view of audio signals. These also facilitate you with a signal generator. Generally, the signal generator helps to generate sine wave, sweep wave, white noise, pink noise, etc. signals with specified frequency.

Some of these software let you save analysis data in their own project formats, but most of them don’t. Also, in some of them, you can save FFT spectrum settings for further use.

My Favorite Audio Spectrum Analyzer Software For Windows:

Visual Analyzer is one of my favorite audio spectrum analyzer software. From the left part of its interface, you can have general information about audio parameters like frequency, mean value, peak, peak to peak, etc. Also, it comes with a variety of FIR and IIR filters to apply them to input audio signals.

Friture is also a good software as it provides multiple spectrum views to analyze them at the same time.

You may also like to check out the lists of best free microphone testing software and audio enhancer software for Windows.

Visual Analyzer

Visual Analyzer is a free audio spectrum analyzer software for Windows. This software lets you analyze real-time phase spectrum of audio signals given through input audio devices. To do so, it provides multiple options to adjust step size (in dB), specify value considered as 0 dB, frequency range, distortion, etc. Also, it lets you specify octave band analysis (1/1, 1/6, 1/24, etc.) and customize spectrum by using given music presets (piano, flute, guitar, etc.). After setting up all these configuration options, you can save configuration settings, or use Save as option to store these settings as INI files.

Apart from audio spectrum analysis, it lets you apply separate filters (various FIR and IIR filters) to individual audio channels, analyze audio using Frequency meter, period meter, and voltmeter, etc. It also lets you calibrate left and right audio channels using built-in measure signals.

AUDio MEasurement System

AUDio MEasurement System is a free and open source audio analyzer software for Windows. It lets you analyze the performance of sound card of your PC. You need to specify input and output devices to analyze them prior to initiating analysis process. There are four analysis options available in this software, which are Generator, Oscilloscope, Spectrum Analyzer, and Frequency Response.

Spectrum analyzer lets you analyze db vs Hz plot of input audio signal spectrum in real-time. All you need to do is, enter the number of sample in the specified field and click on Start button. Now, you can graphically analyze audio spectrum in real time.

The Generator lets you generate sine, rectangular, triangular, etc. waveforms with defined frequency and amplitude range to analyze audio output devices. You can perform left and right channel analysis individually or simultaneously. The Oscilloscope helps to analyze audio input devices with adjustable horizontal scaling, resolution, offset, triggering mode, etc. Frequency Response lets you analyze the frequency response plot of audio signals.

All in all, it is an ultimate software for audio analysis that lets you perform spectrum analysis, frequency response analysis, and oscilloscopic analysis for audio signals.

Friture

Friture is another good audio spectrum analyzer software for Windows. It lets you plot multiple graphs in order to perform audio spectrum analysis. You can plot FFT spectrum, Octave spectrum, 2D spectrogram, etc. and manage their corresponding settings for real-time audio spectrum analysis. For FFT spectrum analysis, you can set maximum and minimum frequency, FFT size, Min and Max amplitude in dB, etc. parameters to perform audio analysis for single channel or dual channel input. Also, you can change frequency scaling mode to linear or logarithmic mode. In Octave Spectrum analysis, you get options to change settings like Bands per octave, min and max amplitude (in dB), response time, etc. For 2D spectrogram analysis, you can set time range (in sec.), min and max color, frequency scale, etc.

Additionally, it also provides oscilloscope view of signals and generates sine, sweep, burst, pink noise, etc. signals for the specified frequency.

One of the distinguishing features of this audio analysis software is that it supports multi-dock view i.e. you can add new docks to the interface to analyze different spectral views at the same time.

Frequency Analyzer

Frequency Analyzer is another free audio spectrum analyzer software for Windows. It is a simple and easy to use software with minimal options available at its interface. Like other software, it also generates frequency spectrum in real time. For that purpose, you need to either connect a microphone or provide input as WAV or Bitmap file.

All you need to do is, set speed (FFT’s per seconds), sampling frequency, points per transform, the source of input audio, etc. options and click on Start button. Now, you can visualize the audio spectrum. There are two separate application windows present on its interface to represent audio signal in wave and frequency spectrum view.

Unlike other software, it doesn’t contain too many configuration options to specify frequency range or audio level.

Real-time Spectrum

Real-time Spectrum is another free audio spectrum viewer software for Windows. It doesn’t have many configurable options, but displays four kinds of waveforms for real-time input audio. These spectrum display options are Spectrum, Cepstrum, Smoothed spectrum, and Filterbank. To get a visual representation of audio spectrum, you can specify maximum frequency, frame rate, dynamic range, apply pre-emphasis, etc. Also, you can choose to see waveform for the left channel, right channel, or both at the same time.

From the bar given at the bottom of the interface, you can analyze maximum instantaneous frequency (in Hz), audio intensity (in dB), rms voltage (Vrms), etc. for audio signals. By using this audio spectrum viewer software, you can print a graph of the plotted spectrum.

TrueRTA

TrueRTA is a free audio analyzer software for Windows. Using this software, you can easily check out audio input and output devices connected to your system. If you have connected a microphone, then you can start speaking through it and corresponding signal fluctuation will be shown on the display. Also, it facilitates you with a signal generator, oscilloscope, and spectrum analyzer. From the right side of the interface, you can set dB limit (from -160 dBu to 20 dBu), and frequency limit (10 Hz to 50KHz) to provide sufficient dynamic range for signal fluctuation. Thus, lets you perform audio spectrum analysis in a better way.

As you launch this software and click on Go button, it starts showing signal fluctuation in real time provided an input device (e.g. microphone) is connected to the PC. You can change signal frequency and amplitude range to alter microphone sensitivity; thus, specify a new range of signals to appear on the screen. Also, you can switch to Oscilloscope view mode. In Oscilloscope view mode, you get options to change values for time per division, volts per division, specify trigger source, etc. The generator helps to generate sine, square, triangular, impulse, etc. waves.

It supports TrueRTA Single Memory File to save and open files, while you can save your current project in RTA format.

In the free version of this audio spectrum analyzer, the Spectrum analyzer option provides only 1 octave real time analyzer mode. You can update to its other versions to get more options.

Oscilloscope

Oscilloscope (Winscope) is an excellent real-time audio spectrum analyzer software for Windows. It comes with an FFT spectrum analyzer and operates in two different modes for spectrum analysis: YT Single Trace Mode and YT Dual Trace Mode. Using single trace mode, you can get only amplitude spectrum of real-time signal, while dual trace mode lets you analyze both amplitude and phase spectrum.

There are several sliders available on its interface to adjust gain, sweep frequency, trigger level, position of plots, etc. If you choose dual trace mode, then Pos Y1 slider controls position of amplitude spectrum, while Pos Y2 slider governs phase spectrum position of the input signal.

It provides an option named Save data to save the spectrum related data in DAT files.