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).

• Frequency Analyzer For Mac

Spectrogram Settings - The Spectrogram provides three main modes: 1. MAX = Maximum This mode takes the maximum values from the spectrum. AVG = Averaging To draw one spectrogram line the values of the spectrum data are averaged. MIN = Minimum The minimum values are taken for display which makes it easy to identify periodic distortions. MON / COL Switch between color and monochrome mode. The COF-Switch disables/enables the automatic algorithm to identify the highest frequencies containing music.

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. Switch between Levels and Bit Monitor by clicking on the dedicated label.

A mouse click on the graphical TPL-Display switches between Left/Right and Mid/Side mode. The Histogram can be switched through S-Mode, M-Mode and TPL, just by clicking on it.

The display of the PLR values within the History-Display can be activated or deactivated by single mouse click on the PLR label. Switching between linear and logarithmic spectrum takes place by a mouse click on the green label just below the frequency axis.

The „Left/Right“ switch activates a separate spectral display of the left and right channel. The „Pano/Phase“ switch enables the frequency dependent representation of the stereo panorama and phase correlation.

To get a detailed spectral analysis a “-200dB Mode” switch can be activated. The scales of the spectrum are adaptable via mouse dragging. The „Cepstrum“ switch enables a special mode to do an in-depth harmonic analysis. 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 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.

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 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! Measurement:. Connect the DAC output with the ADC input.

Launch the Jitter Analyzer and select the audio input. A click on „Start“ initiates the measurement. 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. The level of the test signal should be just below 0 dBFS. 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: / ) 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! Measurement:.

Connect the output of the HiFi component with the ADC input (Attention: Be aware of maximum allowed levels!). Launch the THD Analyzer and select the audio input. A click on „Start“ initiates the measurement.

Inject the 1 kHz test signal into the component via computer, CD-Player, etc. 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.

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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. 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.

WavePad features two very useful tools for performing sound analysis on the spectral content of audio, the Fast Fourier Transform (FFT) and the Time-Based Fast Fourier Transform (TFFT), in addition to extensive audio editing functionality. Typical Applications. Audio Spectrum Analysis. Vibration Testing and Analysis. Noise Detection and Removal The FFT is designed to illustrate characteristics of audio at only one point in time, whereas the TFFT creates a graph over time for the duration of an audio clip.

These tools have applications in a number of areas, including linguistics, mathematics and sound engineering. Advanced Audio Analysis Features.

Perform a spectral analysis of audio at any one point in time, or across an entire duration. FFT has ability to zoom in on either x-axis or y-axis to see graph in more detail. TFFT has zoom ability as well as a color intensity specifier to choose the intensity at which colors are represented in the graph. Graphs are presented in a simple and intuitive fashion, allowing for optimal viewing and analysis. Graphs are plotted using frequencies up to half the sample rate of the audio and intensities up to 0dB. Navigate through, or even play your file, and see real-time updates to both graphs.

Frequency Analyzer For Mac

The FFT updates instantly, and the TFFT graph cursor updates to the same point as in the audio file. Works with any audio files that can be loaded into WavePad FFT GraphThe FFT graph works by taking a small sample of audio and plotting a graph of frequency (x-axis, in Hz) versus intensity (y-axis, in dB). The graph features two different plots if the audio is stereo, otherwise just the one plot will be displayed. The frequency of the graph ranges from 0Hz to half the sample rate of the audio, whilst the intensity range goes from -128dB to 0dB.

TFFT GraphThe TFFT graph works by plotting the intensity of the frequency spectrum of the audio across time, and represents intensity through color. The x-axis is used for time (in hh:mm:ss format) and spans the duration of the audio selection.

The y-axis is used for frequency (in Hz) and depicts the spectrum of the audio at any one point in time (like the FFT it goes up to half the sample rate of the audio). Then at every point in time and frequency, an intensity calculation is done and a dB figure is calculated (between -128dB and 0dB). This figure is mapped to a color intensity scale and then drawn on the graph, with pure black representing -128dB and pure white representing 0dB.