Oscilloscope & Spectrogram на пк

1. In many other analyzer apps one of two things occur: either 9 out of 10 frequencies in that upper range simply get ignored and disappear from the spectrogram display, or all 10 frequencies combine together to make the pixels in the upper range appear brighter than low frequency sounds of similar volume.

2. The ability to simultaneously see the frequency on the spectrogram and confirm it with precision on the oscilloscope allows you to quickly and easily identify musical pitches to a level of accuracy that have not seen anywhere else, not even in desktop software.

3. When you position the line above a specific frequency on the spectrogram, a panel on the left side of the screen displays the octave, note name, and MIDI number.

4. In all spectrum analyzer displays, the upper end of the frequency scale is crowded, meaning that a single pixel corresponds to 10 or 20 frequencies in the frequency analysis.

5. You can then use the frequency timing oscilloscope to lock in on the exact pitch in cents so that you not only know which MIDI note that sound corresponds to but you know exactly how many cents sharp or flat.

6. In frequency mode, when you touch the frequency scale on the right of the screen a blue line appears on the spectrogram.

7. Almost every oscilloscope has a feature where it re-draws the screen each time the input signal level crosses a specified threshold.

8. - When zoomed in, the oscilloscope uses sinc upsampling to show you a close approximation of what actually outputs from your audio interface after digital to analog conversion, rather than just displaying raw audio samples.

9. However, when setting the trigger at a high level to view the attack section of musical notes or drums, we miss the first part of the note.

10. This may seem like a technicality until you run a sine sweep or a 20 KHz tone through the analyzer and find that large sections of the input simply aren't displayed on the analyzer screen.

11. Looking at these kinds of test signals on a spectrogram is the primary way that we test and evaluate the quality of audio effect plugins.

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