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2. Comparison of free software for audio - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_free...

   audio recorder GPL-2.0-or-later: Gnome Wave Cleaner: Jeff Welty Yes No No GTK+ audio editor GPL-2.0-or-later: Jokosher: Jokosher community Yes No Yes GTK+ GPL-2.0-only with exception LMMS: Tobias Doerffel Yes Yes as of 0.4.0 with Qt4 Yes Qt multi-track audio editor intended as a replacement for Cubase-like software GPL-2.0-or-later: MusE: Yes ...

3. Spectrum analyzer - Wikipedia

   en.wikipedia.org/wiki/Spectrum_analyzer

   A spectrum analyzer is also used to determine, by direct observation, the bandwidth of a digital or analog signal. A spectrum analyzer interface is a device that connects to a wireless receiver or a personal computer to allow visual detection and analysis of electromagnetic signals over a defined band of frequencies.

4. Sonic Visualiser - Wikipedia

   en.wikipedia.org/wiki/Sonic_Visualiser

   Screenshot of the spectrum of the refrain of a pop song (precisely "Più bella cosa" by Eros Ramazzotti): basses, drums and artist's voice can clearly be identified. Sonic visualiser melodic range spectrogram example. Sonic Visualiser represents acoustic features of the audio file either as a waveform or as a spectrogram. [4]

5. Smaart - Wikipedia

   en.wikipedia.org/wiki/Smaart

   Smaart running as a spectrum analyzer, in spectrograph view. In spectrograph view, Smaart displays a real-time spectrum analysis, showing the relative strength of audio frequencies for one audio signal. Needing only one channel of audio input, this capability can be used for a variety of purposes.

6. Real-time analyzer - Wikipedia

   en.wikipedia.org/wiki/Real-time_analyzer

   A real-time analyzer (RTA) is a professional audio device that measures and displays the frequency spectrum of an audio signal; a spectrum analyzer that works in real time. An RTA can range from a small PDA -sized device to a rack-mounted hardware unit to software running on a laptop .

7. Spectral density - Wikipedia

   en.wikipedia.org/wiki/Spectral_density

   Electronic instruments called spectrum analyzers are used to observe and measure the power spectra of signals. The spectrum analyzer measures the magnitude of the short-time Fourier transform (STFT) of an input signal. If the signal being analyzed can be considered a stationary process, the STFT is a good smoothed estimate of its power spectral ...

8. Optical spectrometer - Wikipedia

   en.wikipedia.org/wiki/Optical_spectrometer

   In general, any particular instrument will operate over a small portion of this total range because of the different techniques used to measure different portions of the spectrum. Below optical frequencies (that is, at microwave and radio frequencies), the spectrum analyzer is a closely related electronic device. Spectrometers are used in many ...

9. Low Frequency Analyzer and Recorder - Wikipedia

   en.wikipedia.org/wiki/Low_Frequency_Analyzer_and...

   Each system, from shore facility to the transducer array was a sonar set with the signal processing beginning as the array's signals were amplified, processed into beams by time delay and each beam processed by an electromechanical spectrum analyzer with the display being a sweep of the frequency spectrum's intensity burned across electrostatic ...