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Spectro Spectrum Analyzer consists of a Frequency Analyzer and Octave Analyzer with the ability to perform real-time acoustic analysis on your PC with a sound card. The Frequency Analyzer computes the averaged auto power spectrum using RMS or peak hold averaging with a linear or exponential weighting. The Octave Analyzer computes the averaged one octave or 1/3 octave spectrum using RMS or peak hold averaging with a linear or exponential weighting. Linear, A-weighted, B-weighted or C-weighted amplitudes can be chosen for both FFT and Octave analysis. All time history and spectrum results are displayed in graphical format with cursor tools for precision amplitude analysis; results can also be saved in a text file. The program supports 16 Bit Rate and a sampling rates of 44.1 kHz.
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1/24 Octave Spectrum Analyzer
16 band equalizer
ie band
multi-band correlation
desk band
Explorer Band
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Spectro Octave Analyzer software provides you with the ability to perform octave measurements using your PC or laptop sound card. The program computes, in real-time, the averaged 1 octave and 1/3 octave spectrum recorded by a microphone, connected to the sound card. RMS or peak hold analysis can be performed with linear or exponential averaging, applying the most popular window functions. Butterworth filters are used to estimate the sum of the energy for the octave bands; and A-weighting; B-weighting and C-weighting can be applied to the octave amplitudes. Octave bands are displayed in a bar graph and the overall levels are also calculated. The program also provides cursor tools for precision amplitude analysis. Results can be saved in a text file and imported into a spreadsheet program for additional analysis and presentation. The program supports 16 Bite Rate and the sampling frequency is 44.1 kHz. The software is compatible with Windows 2000/Windows XP.
Spectro Spectrum Analyzer: http://www.nvhsoftware.com/Spectro/SpectroSA1.1.exe
Spectro Octave Analyzer: http://www.nvhsoftware.com/Spectro/SpectroOA2.0.exe |
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Perform audio, acoustical and vibrational measurements user-friendly, accurate and flexible using a sound card. WinMLS2000 is widely used by professionals. Now low-cost versions allow the amateur to perform professional loudspeaker and room measurements. User friendliness is ensured through default setups for the standard measurements (e.g. sound system calibration, THD+N and harmonic distortion, reverberation time in rooms. Portable and lightweight measuring equipment, using blank pistol and laptop PC. Flexible hardware, most soundcards are supported (>50 have been tested). Input and output levels can easily be set using the built-in software mixer. The mixer levels can easily be calibrated. Calibration of hardware allows for measurement of absolute levels such as voltage and SPL. Calibration of microphone using either calibrator or nominal microphone sensitivity. Can be upgraded to 24 channels with sample-accurate synchronization (sound card dependent). Supports selection from multiple sound cards. Sampling rates up to 96 kHz in standard version. Special version is able to measure above 100 kHz using sampling rate 215 kHz (sound card dependent). High signal to noise ratio, using internally generated MLS loudspeaker signals with optional low-frequency boosting or speech filters. Measurement modes: MLS, sinusoid, user defined excitation and scope. (Swept sine excitation will be included). Influence of measurement system can be subtracted. Auto-name generator for saving data. Can use standard WAV, ASCII, MLSSA TIM file formats. Initial time delay (distance from loudspeaker to microphone) can be measured sample-accurate with all supported sound cards. Toolbars can be removed from the user interface to maximize the screen area used to display the plot(s). Data can be exported, or plotted using powerful graphics. Full and third-octave band analysis, dBA, dBB, dBC and waterfall plots. Many features for comparing several curves in a plot.
WinMLS 2000: http://64.41.85.4/downloadWinMLS/WinMLS2000/WinMLS2000_Release3Build010c.exe
Real Time Audio Analyzer & Oscilloscope: http://www.esseraudio.com/RTA_Setup.exe
This program is an audio analyzer with FFT and n-th octave frequency analyzers and oscilloscope. The octave analyzer can show the frequency spectrum at 12th, 6th, 3rd and full octave resolution. (A standard license supports all resolutions). With the FFT frequency analyzer you can see the spectrum on a linear scale, which can be useful for harmonics and other analysis tasks. Also on board is a real time oscilloscope which is always useful when analyzing audio signals. If you buy a license, you are eligible to unlimited upgrades to new versions for life. |
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