MUSICSCOPE RELEASE NOTES
Version 2.0.1 (11.09.2017):
- It is now possible to measure the noise density in relation to the spectral resolution (Hz/Spectral-Bar).
That function makes it possible to measure the noise floor by placing the mouse cursor over an area within the spectrogram where no music, but only noise, is present.
Version 2.0.0 (05.09.2017):
- Updated and much more precise frequency range estimation algorithm to analyze whether high resolution audio files really contain frequency components beyond 20 kHz.
The maximum frequency that still represents audio content is indicated by a red vertical line within the spectrogram.
The COF switch (on the left side of the spectrogram) must be switched on to make use of this function.
- The new bit depth analyzer checks for the effective bit depth of 24 bit audio files. The analyzer is able to identify bits that just contain noise to estimate the number of effective bits used for the audio content.
The measurement result is displayed in the “Bit Monitor” where the red marked bits just contain noise.
The COF switch (on the left side of the spectrogram) must be switched on to make use of this function.
Please keep in mind that the bit depth analyzer just works for 24 bit audio files.
Version 1.8.2 (22.09.2016):
- The selected audio device stays selected even after restarting the MusicScope.
- To decrease the CPU load it is now possible to set under Settings -> System the thread priority as well as the analysis speed.
Version 1.8.1 (22.06.2016):
- Bug Fix: DSD 256/512 file reader issue has been fixed.
- Special thanks to Daniele Berti who helped us to figure out some issues and who proposed and tested the 64 Bit version.
Version 1.8 (21.06.2016):
- The MusicScope Windows download has been split up into a 32 Bit and a 64 Bit version. Please choose the right download for your Windows version.
- Bug Fix: Faulty FLAC meta data does not freeze the MusicScope anymore.
Version 1.7.7 (11.06.2016):
- Bug Fixing: The analysis of DSD albums has been stopped after the first track when the „MusicScope Cloud Upload“ was activated.
Version 1.7.6 (17.05.2016):
- DSF (DSD) meta data handling optimized.
Version 1.7.5 (30.04.2016):
- Metadata reader optimized to access data that are not completely compliant to the standard.
Version 1.7.4 (29.04.2016):
- The MusicScope Cloud can now be searched additionally by Artist and User (Uploader Nickname).
Version 1.7.3 (27.04.2016):
- Bug-Fix within the FLAC meta data handling
- The MusicScope Cloud Viewer got an LRA (Loudness / Dynamic Range) column to get a quick overview
Version 1.7.2 (26.04.2016):
- Now it is possible to set a MusicScope Cloud uploader nick name. Just click on the cloud symbol within the upper right corner. The Cloud-View opens and then click on the gear symbol to set your nick name. All your uploads you did and do are automatically tagged with that nick name. Furthermore, the name is saved for future usage.
Version 1.7.1 (22.04.2016):
- The new MusicScope version prevents the MusicScope Cloud upload of an album that contains only one track. Please support us in building the MusicScope Cloud by uploading complete album measurements.
Version 1.7 (20.04.2016):
The new MusicScope Cloud offers the possibility to share your album 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.
Version 1.6 (29.02.2016):
- New „Turntable RPM Measurement“ module for a high precision measurement of the turntable rounds per minute. It is possible to detect a deviation as small as 0.01%.
- Important bug fixes and performance optimizations.
Version 1.5.1 (15.02.2016):
- Optimization of the Ultra High Resolution Spectrum Analyzer Module.
- Bug-Fixes: There were cases where the UHR Spectrum Analyzer Modul had errors.
Version 1.5 (09.02.2016):
- The MusicScope Spectrogram got a new color mode (BRY). Furthermore, the standard color mode has been improved.
- The Ultra High Resolution Spectrum Analyzer is a new MusicScope module (Modules are located under Settings).
- The following features are part of the UHR Spectrum Analyzer:
- A frequency resolution of up to 0.67 Hz/Bin
- Extrem precise Amplitude measurements
- Spectrogram speed and color is selectable
- Band-Pass Filter to listen to dedicated frequency ranges of the record
- A „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.
Version 1.4.8 (04.01.2016):
- The MusicScope is now able to analyze a folder structure recursively. Just „Drag & Drop“ a folder, that could contain sub-folders, into the MusicScope. The resulting reports are saved right beside of the audio files.
- The Jitter Analyzer has been optimized to display all side bands for any selected bandwidth.
Version 1.4.7 (23.12.2015):
- The MusicScope is now able to analyze and playback DSD512 – Octuple Rate (22.5792MHz) Direct Stream Digital
Version 1.4.6 (14.12.2015):
- The MusicScope is now able to display a separate spectrum for the left and right channel. A mouse click on the „Left/Right“ label, just below of the frequency axis, activates the function.
- A new feature called „Panorama / Phase“ provides the ability to analyze for each frequency whether the signal is panned left or right. Furthermore, the phase between the left an right channel is displayed by using the same color code as used by the correlation meter. Activate the function by clicking on the „Pano/Phase“ label right below of the Spectrum frequency axis.
- Bug-Fix: It could happen that the DSD playback started with an out of phase left & right channel. That issue has been fixed with the current version.
Version 1.4.5 (02.12.2015):
- A TPL-Histogram to visualize compression and limiting has been added. By left mouse click on the histogram (right beside of the level meter) it can be switched between S-Mode, M-Mode und TPL.
- The TPL-Histogram unveils compression and limiting by showing the distribution of the amplitude.
- A Gaussian distribution stands for a record without heavy compression and limiting whereas an unsymmetrical distribution, with a peak around 0 dB, indicates strong limiting to make the track louder.
- We implemented a reset function for the „Audio Input“ and VST/AU mode to make sure that all measured values can be set to default at any time.
Version 1.4.4 (26.11.2015):
- Bug-Fix: It could happen that the MusicScope did not execute the full playlist.
Version 1.4.3 (23.11.2015):
- Bug-Fix: Windows 10 drag and drop issue fixed.
Version 1.4.2 (20.11.2015):
- Completely reworked DSD-Decoder to get an even better analysis and playback of DSD files up to DSD256.
- Small bug fixes for the playlist handling.
Version 1.4.1 (05.11.2015):
- A THD Analyzer to measure the Total Harmonic Distortions of HiFi-Components has been added. Just open up the settings menu (gear icon in the upper right corner) and klick on the THD Analyzer tab. There you’ll find a short description of how to execute a measurement.
- The Jitter Analyzer has been optimized to enable the measurement of periodic Jitter below 20ps.
Version 1.4 (22.10.2015):
- A Jitter Analyzer has been added to enable jitter measurements of digital to analog converter (DAC) outputs.
- The Analyzer is launched via the Setup Menu (Gear Icon / Upper Right Corner) and the tab „Jitter Analyzer“.
- The used test signal (wav download) is a 11.025 kHz sinus at a 44.1 kHz (16 Bit) sample rate. The chosen relation between signal frequency and sample rate assures that the jitter test signal does not contain any quantization noise.
- 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!
Version 1.3.15 (11.10.2015):
- The MusicScope is now able to calculate an album LRA (Dynamic Range). Just drop a whole album into the playlist and activate „Playlist Report“. The text based report contains the Playlist Loudness Range which is equal to the album LRA if the playlist just contains the album to be analyzed.
Version 1.3.14 (18.09.2015):
- Bug Fix: If there wasn’t an audio input device detected then the connection to the MusicScope VST/AU-Plugin could not be established.
Version 1.3.13 (05.08.2015):
- Bug Fix: For very long FLAC files the displayed play time was wrong.
- Bug Fix: On Mac OS X it could happen that the activation or info window was in the background, blocking the MusicScope’s GUI.
Version 1.3.12 (10.06.2015):
- Support for the AIFF-C/sowt format has been added. This is an uncompressed AIFF-C format (PCM, little-endian) used by some .aiff audio files.
Version 1.3.11 (04.06.2015):
- Bug-Fix: The version 1.3.10 introduced an error into the Playlist overall report which has been fixed
Version 1.3.10 (01.06.2015):
- Performance enhancements to reduce the CPU demand.
- A new tool for in-depth harmonic analysis called Cepstrum (http://en.wikipedia.org/wiki/Cepstrum) has been integrated.
The Cepstrum provides information about the periodicity of the Spectrum and therefore about harmonics within the original signal.
To activate the Cepstrum-Display it is necessary to switch the Spectrum into the logarithmic frequency scale. A switch enables the activation of the function. The values of the Cepstrum do not correspond to the scales of the Spectrum. The mouse pointer is used to fetch the Cepstrum’s Quefrency in ms (milliseconds) and kHz.Areas of Application:
- Identifying harmonics in music.
- Finding very small amounts of harmonics in sinus signals used for analysis (e.g. in-depth Sample Rate Converter Analysis).
- Reveal mechanical errors within gear boxes, engines, etc. by an acoustic analysis.
Version 1.3.9 (09.05.2015):
- Bug-Fix: The input file size was limited to 2 GB.
Version 1.3.8 (05.05.2015):
- Bug-Fix: A short distortion at the end of .dsf (DSD) files pushed the TPL value to +3dB.
Version 1.3.7 (03.05.2015):
- Urgent Bug-Fix:
The logarithmic spectrum showed a short impulse during switching from linear to logarithmic mode and at the beginning of an analysis, causing the maximum amplitude (orange dots) to display wrong values.
Version 1.3.6 (02.05.2015):
- A new -200dB Spectrum Mode has been implemented to allow a detailed analysis of the noise floor. This is for example interesting to judge the performance of a Sample Rate Converter by checking the harmonic distortions and aliasing. To activate it click on the „-200dB Mode“ label just below the frequency scale.
- The True Peak Level algorithm has been optimized to achieve even better measurements.
Version 1.3.5 (20.04.2015):
- The format display has been extended to indicate Broadcast Wave Files (BWF).
- The interpolation filters to detect „Inter Sample Peaks“ have been optimized.
- We like to recommend our new software „AudioRepair“ which works on 44.1kHz records to remove „Inter Sample Peaks“ and to correct the frequency response to make sure that it reaches -96dB at 22.05kHz.
Version 1.3.4 (13.04.2015):
- Support for Direct Stream Digital – DSD256 (Quad-rate DSD) has been added
- Sporadic problems with .dsf files have been fixed
Version 1.3.3 (13.03.2015):
- It is now possible to toggle between a Linear and Logarithmic Frequency Spectrum, just by clicking on the green „Linear Frequency Spectrum [kHz]“ label.
- The logarithmic frequency scale can be changed by horizontal mouse dragging, on the scale. This is similar to the vertical mouse dragging for changing the dB scaling. A double click resets all values to default.
Version 1.3.2 (03.03.2015):
- New Audio Unit (64 Bit) AU-Plugin adaptor for MacOS X.
- New VST3-Plugin adaptor for MacOS X.
- VST/AU operational optimization.
Version 1.3.1 (28.02.2015):
- It is now possible to manually reset the Bit Monitor by clicking on the Bit History.
- The Spectrogram indicates now the current position with a white line if in Audio-Input and VST-Input mode.
- Bug Fix: Display AUDIO INPUT and not VST INPUT if audio input is selected.
- Bug Fix: VST input experienced distortions and the progress time indicator was wrong if „No Audio Output“ was selected, which is the standard case in VST-Input mode.
- Bug Fix: Wrong PLR for peak values below -60 dB has been fixed.
Version 1.3 (27.02.2015):
- Free of charge VST 3 (32 & 64 Bit) VST-Adaptor to use the MusicScope directly within Digital Audio Workstations or Audio Players with VST-Plugin support.
The current version works for Windows. The Mac OS X version will follow. Please visit the MusicScope VST-Plugin Adaptor Product Page to get a detailed description and downloads.
- The Spectrogram provides now a Minimum Mode. By clicking on “MAX” the display toggles through the available modes: MAX -> AVG -> MIN
+ The MIN-Mode makes it easy to discover any kind of periodical distortions as vertical lines.
+ High Resolution Audio forgeries by adding harmonics to the spectrum are easily exposed.
- The PLR value (Peak to Loudness Ratio – EXPERIMENTAL) can now be displayed in the History-Circle. A click in the lower left corner of the History-Circle-Display activates the PLR-Display.
- At the end of an analysis the averaged CREST and PLR values are displayed. The former CREST Max. and Min. values weren’t that useful and have been discarded.
- The algorithm for the automatic detection of the frequency range containing music in high resolution audio tracks, has been improved. If the COF (Cut-Off-Frequency) switch changes to red then the system wasn’t able to do an automatic detection.
- The maximum spectrum indication (orange dots) get now cleared for each play and analyze cycle.
Version 1.2.9 (17.02.2015):
- New automatic cut-off frequency detection for high resolution audio files to identify the frequency range containing music signals.
+ The automatic detection becomes active as soon as a track with at least 88.2 kHz sampling rate has been loaded.
+ If the automatic detection fails or a standard audio file has been loaded then the COF-Switch changes to red to indicate the state.
- It is now possible to switch anytime between Left/Right and Mid/Side mode (click on the levels display). All data (RMS average & TPL) for both modes are saved in the text report.
- Broadcast wave file support (mono & stereo) has been added.
Version 1.2.8 (13.02.2015):
- New Bit Monitor
+ It is now possible to switch between the Level and Bit Monitor view. Just click on the labeling.
+ Display of the Bit History for each channel to identify stuck bits or regular bit patterns, indicating up-sampling or faulty recording software/hardware
+ A new Direct Current Indicator for each channel has been added and is displayed within the Bit Monitor view
+ Any offset can be easily identified
- The audio output can now be configured to „No Audio Output“. This could be interesting if a loop back cable between Line-Out and Line-In is used.
- The new value PLR (Peak to Loudness Ratio) (still experimental) displays the 400ms short term dynamic.
- Bug-Fix: It could happen that dedicated .dff files could not be opened. The problem has been fixed and up to now we haven’t found any .dff files which cause issues.
Version 1.2.7 (08.02.2015):
- New Audio Input Mode – It is now possible to select an Audio Input Device for Realtime Analysis:
+ Open the Settings Menu (gear-weel icon)
+ Select the Audio Input Tab
+ Select the Audio Input Device as well as the sampling rate and bit depth
+ Click on Select
+ Click on „Play“ starts the Audio Input
a.) Vinyl-Record analyzing via DA-Converter or phono amplifier connected to the line-in of the audio device.
b.) Analyzing streaming services by routing their output via virtual audio devices into the MusicScope (we’re going to provide a tutorial).
- Volume Control (0 dB to -60 dB) added.
- New Settings Menu (gear-weel icon):
+ Set Audio Input Device for realtime analysis
+ Set Audio Output Device for audio monitoring
- Text-Buttons replaced with icons.
Version 1.2.6 (03.02.2015):
- 32 Bit and 32 Bit Float support for WAV and AIFF has been added.
- Spectrogram mouse pointer measurement is now coupled with the “History Circle” to get the associated values.
Version 1.2.5 (02.02.2015):
- The new Mid/Side analyzing extends the normal Left/Right measurements.
The Mid-Signal represents the mono and the Side-Signal the stereo part of the audio signal. Analyzing in Mid/Side mode provides detailed information about the stereo image and therefore the quality of the stereo reproduction. A single mouse click on the graphical levels display switches between Left/Right and Mid/Side mode. In M/S mode the labeling and coloring of the peak bars changes. Furthermore, the history circle shows the Mid & Side peaks instead of the L+R peak and Loudness in Left/Right mode.
- Improved usability of the Playlist (Batch Processing).
- Online Manual linked within the “About Box”
- Performance optimization.
Version 1.2.4 (30.01.2015):
- The Stereo Meter displays now the averaged measurement result at the end of an analysis to enable the assessment of the stereo image.
- The new report includes the averaged Stereo Meter result.
Version 1.2.3 (28.01.2015):
- Bug-Fix: Windows and Mac OSX performance issues which caused stutter has been solved
- Now the whole graphical level display can be used to switch with a single click between the S- and M-Mode Histogram
Version 1.2.2 (26.01.2015):
- Playlist: Entries can now be moved up and down within the list by using a mouse dragging gesture.
- Playlist: Start Play and Analyze of dedicated items directly within the Playlist by using the context menu (right mouse click).
- Playlist: It is now possible to remove single tracks from the Playlist by using the context menu.
- Bug-Fix: The Playlist jumped into Analyze-Mode even if it was started in Play-Mode. Now it is possible to start it in Play- or Analyze-Mode and it stays there.
Version 1.2.1 (25.01.2015):
- It is now possible to create an aggregated text report for the whole playlist. Just drop the files of an album into the playlist and get a single album-report. A report save dialog opens automatically as soon as the full list has been analyzed and the tick box for „Playlist Report“ is active.
- The RMS value displays now the RMS-Average over the whole track as soon as it has been completely analyzed. To calculate the RMS the mathematical definition has been used where a 0 dBFS sinus shows an RMS of -3 dBFS and therefore a CREST of 3 dB.
- A new measurement tool, the „Bit Monitor“, has been added. All unused bits are marked blue. Different shades of gray indicate the bit usage. The most significant bit (left) is always used because it indicates the sign of the audio signal (positive and negative half cycle).
- Bug-Fix: The TPL-Max value is now red marked as soon as it exceeds 0 dBFS.
Version 1.2 (21.01.2015):
- Playlist to play and analyze selected audio files without further user interaction.
- Support of Windows and Mac OS X specific file dialogs.
- Bug-Fix: Minimum and Maximum Crest Values show now the correct values at the end of the analysis.
Version 1.1.6 (15.01.2015):
- The stereo meter displays now the correlation range.
- Bug-Fix: Short playback of music during the change from play -> pause -> analyze has been fixed.
- Bug-Fix: The file name for the report export was wrong and has been fixed.
Version 1.1.5 (12.01.2015):
- Mouse-Position depending display of S-Loudness within the Circle-Diagram.
- Mac OS X Menu -> About shows now the correct About window.
- Bug-Fix: MusicScope activation issue on Windows platform has been fixed. ATTENTION: Windows users will be asked to re-activate the MusicScope.
Version 1.1.4 (11.01.2015):
- The mouse-position displays now the current track time within the circle diagram and the spectrogram
- Bug-Fix: Short burst of white noise at the end of some AIFF files has been fixed
Version 1.1.3 (09.01.2015):
- We added a „Pause“ function to pause and continue the analyzing and playback at anytime
- The system requirements of the windows version have been reduced and the memory utilization has been optimized
Version 1.1.2 (07.01.2015):
- The Loudness Histogram can now be switched between M-Mode (Momentary) und S-Mode (Short-Term). The S-Mode shows the Loudness Range (LRA) as vertical bar. The EBU R-128 explains how the LRA gets calculated from the Short-Term Loudness Histogram
- At the end of the analysis the MusicScope displays the minimum and maximum Crest-Factor
- It is now possible to select the report type (text and/or graphical) to be exported
- The about window (click on „?“ within the right corner) provides now the possibility to check for a newer MusicScope version
Version 1.1.1 (06.01.2015):
- The audio format MP3 (MPEG-1 Audio Layer III) is now supported
- Performance optimization for the windows version
- Compatible with Windows 32bit
Version 1.1.0 (05.01.2015):
- The audio format AIFF (Audio Interchange File Format) is now supported
- The spectrogram can now be switched into a color mode to have a different view on the spectral distribution
Version 1.0.3 (30.12.2014):
- Short dropout at the beginning of FLAC files has been fixed
- The MusicScope supports now older Mac OS X versions down to 10.7.3 (Lion)
Version 1.0.2 (26.12.2014):
- The measurement of the Loudness Range (LRA) has been improved, so that it shows similar results as professional studio software, without any significant deviation.
- The maximum allowed DSD digital saturation of +3 dB SACD is now reflected as 0 dBfs. A DSD signal can reach levels of up to +6 dB SACD, but this is prohibited as specified in the ANNEX D.3 of the SACD Audio Signal Property Specification.