The MusicScope is a high precision software audio analyzer and measuring tool that works as an Audio-Microscope to visualize the different quality aspects of a music collection.

The implementation of international audio standards (EBU R128 and ITU-R BS-1770) allows a full comparability to professional studio software but with the advantage of being usable without the deep knowledge of an audio engineer. It is possible to analyze digital music but also analog sources like LPs or tape records.

Integrated modules (Jitter- and THD-Analyzer) allow the measurement of HiFi-Components (e.g. Digital to Analog Converters or Headphone Amplifiers).



Software Audio Analyzer



  • Windows 7 – 10 / 32 & 64 Bit
  • Mac OSX Mountain Lion 10.8.3 – Mojave 10.14.x
  • Quad Core CPU recommended

Supported Audio Formats, Sample Rates and Bit Depth:

  • PCM 44.1 kHz – 384 kHz
  • DSD64, DSD128 (Double DSD), DSD256 (Quadruple DSD) and DSD512 (Octuple DSD)
  • 1 Bit, 16 Bit, 24 Bit and 32 Bit

Realtime analysis of external audio sources via audio input (e.g. Line-In)


Batch processing of playlists for a fast analysis of a larger music collection.


Automatic recognition of the real bandwidth of high-resolution audio files


Professional measurement in Left/Right or Mid/Side mode


True Peak Meter:

  • Detection of Inter Sample Peaks
  • Measured Data: Peak, RMS, Crest and PLR

Loudness Measurements (EBU R128 and ITU-R BS-1770)

  • Measured Data: Momentary-, Short-Term-, Integrated-Loudness and Loudness Range (LRA)

Loudness- & TPL-Histogram:

  • Display of Loudness- and TPL-Distribution


  • Validation whether all bits are used and no regular patterns appear

Bit-Depth Analyzer:

  • Identify the number of Bits, that just contain noise


  • Direct Current indicator to reveal any DC offset


  • Display of the Peak- and Loudness-Values as well as the Mid/Side measurements over the whole track


  • Vector Scope, Balance Indicator and Correlation Meter

Frequency Spectrum:

  • Linear and logarithmic mode
  • Determination of frequency and amplitude via mouse pointer
  • Left and right channel separated or together

Spectrogram – Spectrum over time with numerous configuration options:

  • Maximum, Average, Minimum
  • Monochrome- and Color Mode

Noise Density Measurement:

  • Measure the noise floor level


  • Detailed analysis of harmonics

Panorama Position and Correlation:

  • Display of the correlation between the left and right channel over the whole Frequency-Range to identify cancellations
  • Position of the frequencies within the left and right channel


  • Export of graphic und text based reports

Jitter Analyzer Module:

  • Measurement of the Digital to Analog Converter quality

THD Analyzer Module:

  • Measurement of the Total Harmonic Distortions of DA-Converters, Headphone Amplifiers, etc.

Ultra High Resolution Spectrum Analyzer


Turntable RPM Measurement


MusicScope Cloud

  • Share your measurements with the MusicScope Community
  • Access the measurements of other community members

Online Manual



Microsoft Windows 32/64bit - v2.0.5

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The MusicScope Audio Analyzer can be fully tested before purchase. Only the playback and analysis is limited to 30 seconds.
The activation allows 3 parallel installations. In fact, it is possible to use the Windows and MacOS X Version in parallel by just using one activation key.


Levels / Bit Monitor
A Click on either of the labels switches into the dedicated mode.

After the analysis has been finalized the track time changes into a „Report“ button to save a graphical and text based report.

Left/Right & Mid/Side Mode
A mouse click on the graphical levels display switches between the LR and MS modi.

Track name
A click on the Track Name opens the playlist to do the batch processing.

Settings / Info
The Setup icon opens a settings dialog to configure several MusicScope functions and the Info icon opens the program information.

History PLR display
A click on the PLR label activates the display of the Peak over Loudness Ratio history.

Spectrum Settings
- Vertical mouse dragging changes the decibel scale.

- A click on the label „Linear Frequency Spectrum“ changes the spectrum into the „Logarithmic" Frequency“ mode.

- In Logarithmic Frequency Mode the frequency scale can be changed by applying a horizontal mouse dragging on the scale.

- To extend the resolution a „-200dB Mode“ is available. Just click on the label to activate the mode.

Spectrogram Settings
- The Spectrogram provides three main modes:
1. MAX => Maximum
This mode takes the maximum values from the spectrum.
2. AVG => Averaging
To draw one spectrogram line the values of the spectrum data are averaged.
3. MIN => Minimum
The minimum values are taken for display which makes it easy to identify periodic distortions.

Switch between color and monochrome mode.

- The COF-Switch disables/enables the automatic algorithm to identify the highest frequencies containing music.

“The MusicScope supplements our ears by providing quantitative measurements to finally decide about the quality of a recording.”

Reference customer:

XiVero MusicScope Partner

The following use cases are some examples for the versatile applicability of the MusicScope:


Software Audio Analyzer for high-resolution audio tracks to determine the frequency range and consequently the authenticity of the record.

Up-Sampled forgeries of standard records are easily identified.


Real-time audio analyzer of analog records (LP, tape, etc.).


Detection of Inter Sample Peaks that cause distortions in the analog part of DA-Converters.


Acquisition of the Dynamic Range by measuring the Loudness Range (LRA).


Measurement of Direct Stream Digital (DSD) records and assessment whether they have been converted back into PCM during their production by checking the quantization noise level.


Estimation of the signal to noise ratio (SNR).


Discovery of recording errors:

  • Periodical distortions visible by vertical streaks within the spectrogram (e.g. the 15.625kHz (PAL) / 15.734kHz (NTSC) line frequency distortions of cathode ray tubes)
  • Stereo phase errors that cause cancellations of dedicated frequencies
  • Qualitative assessment of the stereo image
  • Revealing strong compression and limiting by using the TPL-Histogram

Seen on:

MusicScope Seen on
MusicScope Seen on 2





The MusicScope Audio Analyzer supports numerous audio formats (WAV, BWF, AIFF, FLAC, ALAC, DFF, DSF und MP3) with a bit depth of 1, 16, 24 and 32 Bits as well as sample rates of 44.1 kHz – 384 kHz including DSD64 – DSD512.

There is no need for a special DSD capable digital to analog converter to playback Direct Stream Digital content.

Analog audio sources connected via an audio to digital converter (e.g. Line-In) are analyzed in real time.

MusicScope Audio Formats


The control elements are optimized for ease of handling.

Music files can be loaded by Drag & Drop or via the Load-Dialog.

A click on Play starts the playback, whereas a mouse click on the microscope symbol initiates the fast analysis. It is possible to switch between Play, Analyze and Pause to look into dedicated parts of the record.

The MusicScope has several click areas and switches to activate different displays for the visualization of the measurements.

  1. Switch between Levels and Bit Monitor by clicking on the dedicated label.
  2. A mouse click on the graphical TPL-Display switches between Left/Right and Mid/Side mode.
  3. The Histogram can be switched through S-Mode, M-Mode and TPL, just by clicking on it.
  4. The display of the PLR values within the History-Display can be activated or deactivated by single mouse click on the PLR label.
  5. Switching between linear and logarithmic spectrum takes place by a mouse click on the green label just below the frequency axis.
  6. The „Left/Right“ switch activates a separate spectral display of the left and right channel.
  7. The „Pano/Phase“ switch enables the frequency dependent representation of the stereo panorama and phase correlation.
  8. To get a detailed spectral analysis a “-200dB Mode” switch can be activated.
  9. The scales of the spectrum are adaptable via mouse dragging.
  10. The „Cepstrum“ switch enables a special mode to do an in-depth harmonic analysis.
  11. The configuration of the Spectrogram can be changed by using the green labeled switches:
    • MAX (Maximum), AVG (Average) and MIN (Minimum) Mode
    • MON (Monochrome) and COL (Color) display
    • COF – Activation and deactivation of the automatic algorithm to determine the bandwidth of High Resolution Audio material



The playlist handles several audio files to play and analyze them at once. It can be selected for each entry whether a graphical and/or text based report should be created.

A playlist opens automatically if more than one track has been loaded via Drag & Drop or the Load-Dialog. Furthermore, clicking on the track name field opens the playlist. Drag & Drop directly into the playlist is also supported.

By calculating a playlist LRA (Loudness Range) the MusicScope is able to determine the averaged dynamic of a whole album.




The True Peak Meter is able to measure Inter Sample Peaks that cause distortions in the analog part of digital to analog converters by producing overs of up to +3 dB.

All displayed values are color coded to map them between the numbers and their graphical representation.

TPL True Peak Level
RMS Root Mean Square
CREST Crest Factor = Ratio of TPL over RMS
PLR Peak to Loudness Ratio = Ratio of TPL over Loudness



The MusicScope measures all loudness values specified by the international standards EBU R128 and ITU-R BS-1770.

A switchable Loudness-Histogram (Momentary-Mode, Short-Term-Mode and TPL) displays the distribution of the Loudness- and TPL-Values and therefore enables the assessment of the dynamic range as well as compression and limiting of the music track.

Loudness Values differ in their averaging times:

M Momentary = 400 ms
S Short Term = 3 s
I Integrated = Averaged over the whole music track
LRA Loudness Range produced by the music track




Beside of the left and right channel measurement it is possible to switch into the Mid/Side mode to analyze the mono (M = (L + R) / 2) and stereo (S = (L – R) / 2) part of the signal separately.

Analyzing in Mid/Side mode provides detailed information about the stereo image and therefore the quality of the stereo reproduction.




The circular diagram represents the evolution of the Peak Values (green), the Short Term Loudness (orange) and the Peak to Loudness Ratio (blue) over the whole music track.

A click on the PLR label activates and deactivates the display of the PLR value.

Red colored streaks indicate Inter Sample Peaks which cause audible distortions, degrading the music reproduction.

In Mid/Side mode the peak values of the mid and side signal are displayed.

Use the mouse pointer to find the track time and associated short-term loudness values.




The Bit Monitor, activated by a click on the dedicated label, displays the bit usage. Unused bits are marked blue, whereas different shades of gray indicate the bit utilization.
A rolling Bit History makes it easy to identify stuck bits or regular bit pattern indicating up-sampling or faulty recording software or hardware.

The Bit-Depth analyzer marks all bits red, that just contain noise and therefore do not contribute to an improved SNR (Signal to Noise Ration).

The Direct Current Indicator for each channel helps to identify any DC offset.




The different stereo meter instruments provide the means to get a better understanding of the stereo image. The upper part resembles a vector scope which allows the evaluation of the signal distribution between the left and the right channel.

A Balance Indicator shows the current signal position in the stereo plane and its stage width.

The Correlation Meter helps to check the mono compatibility of the music track. The signal can be reproduced in mono as long as it stays in the green area. Furthermore, a green indication stands for a better localization of instruments within the stereo image.




The frequencies of the music are displayed in a spectrum. A linear frequency scale supports the use case of high-resolution audio analysis, whereas the logarithmic scale provides a better view of the most important frequency range for music reproduction.

Vertical mouse dragging changes the decibel scale and therefore the resolution. The logarithmic mode allows the adjustment of the frequency scale by horizontal mouse dragging.

It is possible to use the mouse pointer for measurements of the frequency [kHz] and amplitude [dB] at dedicated points within the spectrum.

To extend the amplitude resolution a „-200dB Mode“ is available.

The display of the frequency dependent stereo panorama and phase correlation is activated by a mouse click on the “Pano/Phase” label.

A Cepstrum mode allows the detailed analysis of harmonics.




The spectrogram is a representation of the spectrum over time. It can be switched between different display modes by using the green labeled switches:

  • MAX (Maximum), AVG (Average) and MIN (Minimum) Mode
  • MON (Monochrome) display
  • BRY & COL (Color) display
  • COF – Activation and deactivation of the automatic algorithm to determine the bandwidth of High Resolution Audio material.

The Spectrogram supports the detection of periodical interfering signals (vertical streaks) as well as the determination of the highest frequencies containing music signals to check the authenticity and quality of High Resolution Audio tracks.

The mouse pointer reveals the track time and amplitude at dedicated spectrogram areas.




The Jitter Analyzer uses a 11.025 kHz test signal (Download) to measure the periodical jitter of a digital to analog converter (DAC). Especially periodical jitter causes harmonic distortions which have an adverse effect on the music reproduction.

To execute the measurement it is necessary to use an analog to digital converter (ADC). This can be either an external device connected via USB or the laptop or desktop line-input.

Attention: The microphone input does not work!


  1. Connect the DAC output with the ADC input.
  2. Launch the Jitter Analyzer and select the audio input. A click on „Start“ initiates the measurement.
  3. Inject the 11.025 kHz test signal via computer, CD-Player, etc. The chosen relation between the test signal frequency and sample rate assures that the signal is free of quantization noise. 
  4. The level of the test signal should be just below 0 dBFS.
  5. Measurement of the side bands by using the mouse pointer. The jitter is directly displayed in pico seconds (ps).

The displayed spectrum bandwidth can be switched between Narrow for a detailed jitter search around the test signal to Medium, Wide or Ultra Wide to identify jitter with higher frequencies.



The Total Harmonic Distortion (THD) Analyzer uses a 1 kHz test signal (Download: 16Bit / 24Bit) to measure harmonic distortions of HiFi components which have an adverse effect on the music reproduction.

To execute the measurement it is necessary to use an analog to digital converter (ADC). This can be either an external device connected via USB or the laptop or desktop line-input.

Attention: The microphone input does not work!


  1. Connect the output of the HiFi component with the ADC input (Attention: Be aware of maximum allowed levels!).
  2. Launch the THD Analyzer and select the audio input. A click on „Start“ initiates the measurement.
  3. Inject the 1 kHz test signal into the component via computer, CD-Player, etc.
  4. The level of the measured test signal should be below 0 dB.

All harmonic distortions above a threshold are marked with their frequency [Hz], amplitude [dB] and THD [%].

The overall THD is provided in percent and as a relative measurement to the test signal in dB.



The Ultra High Resolution Spectrum Analyzer Module provides a frequency resolution of up to 0.67 Hz/Bin.
An adaptable amplitude range allows for precise measurements of the frequency response.

A completely controllable Band-Pass-Filter enables selective listening of dedicated frequency ranges.

The „Frequency Translation“ makes it possible to listen to frequencies beyond the hearing capability by translating them down into the audible range. It is actually possible to listen to frequencies of High Resolution Records beyond 20 kHz.

The short demonstration video shows the isolation of a periodic distortion caused by the flyback transformer of an old CRT monitor.

All MusicScope modules are located under settings (Gear Symbol).



The „Turntable RPM Measurement“ module enables the measurement of the turntable rounds per minute with a precision of 0.01 %.

It is possible to use any test LP that provides a frequency stable test sinus with an arbitrary frequency within the range of 400 Hz – 5000 Hz.

We only need a Signal to Noise Ratio (SNR) of 9 dB and a test duration of 15 – 20 seconds to achieve a very precise measurement.

The screenshot shows a simulated measurement with a constant deviation of 0.3 % and a superimposed 0.55 Hz flutter caused by a spindle hole offset.

Turntable RPM - Deviation


At the end of the music track analysis the measurement results are kept in the display for further investigation. To save those data a reporting function exports them either as graphical or as a text report.

Just click the Report-Button which replaces the progress time information.



The MusicScope Cloud offers the possibility to share your measurements with the MusicScope Community and to access measurements of other users.

The MusicScope makes use of the embedded audio track meta data (FLAC, ALAC, AIFF, DSF/DSD and MP3) to upload the measurements as effortless as possible.

Just activate the “MusicScope Cloud Upload” within the playlist and your data are automatically uploaded.

A future MusicScope version allows the tagging of the uploads by using a nick name. All former uploads will be automatically tagged with that nick name.

MusicScope Cloud


Why do you display prices with decimal places?

Since the 1st of January 2015 we have to calculate the value added tax – only for sales within the EU – on basis of the VAT rate of the customer’s country. We have to transfer the VAT into the EU-Country of the buyer. The price is displayed with decimal places because of the different VAT rates within the EU. Even the net price has been set with decimal places.

What do I have to do if the Mac OS X dialog appears: „MusicScope can't be opened because it was not downloaded from the Mac App Store“
  • Locate the MusicScope in the Applications folder (or wherever you installed it)
  • Do “Open” via context menu
  • You will be presented with a similar-looking dialog, but this time there will be a second button allowing you to run the application
  • After that you will be able to start the MusicScope as you start any other application

How do I activate my MusicScope?
  • After buying the MusicScope you’re getting an „Activation Key“ bound to your email address you used during the checkout process.
  • If the MusicScope isn’t activated then it opens up a dialog where you can choose between activation and test.
  • Just click „Activate“ and provide your email address as well as the key to activate the MusicScope.
  • The email will be only used during activation.

How many activations are possible?
  • The MusicScope can be activated on three (3) different computers either Windows or Mac OSX based.
  • A re-installation does not count as an activation. Only installing the software on a further computer is a new activation.

Is there an online connection to your servers?
  • The software contacts our servers only once during activation

Can I use the MusicScope on Windows with high DPI displays?

The MusicScope is currently not modified for high DPI displays and will not appear correctly but Windows offers a built-in function to prevent this:

  1. Right-click on the MusicScope desktop icon or the MusicScope.exe file
  2. Select the “Compatibility” tab
  3. Click on the button “Change high DPI settings”
  4. Enable the checkbox for “Override high DPI scaling behaviour”
  5. Select from the drop-down menu “System (enhanced)”


See also the support page from Microsoft.



Microsoft Windows 32/64bit - v2.0.5

 24.37 incl. VAT if applicable Add to cart

Add to cart

Go to the Shop