Preferencias de espectrogramas

Usted puede ver cualquier pista de audio como un Espectrograma en lugar de una Onda seleccionando "Espectrograma", "Espectro logarítmico(f)" o "Tono (EAC)" desde el Menú desplegable de pista. Las preferencias de Espectrogramas le permiten ajustar algunos ajustes para estos diferentes tipos de vistas basadas en espectros.

Apriete en cualquiera de las otras secciones de preferencias en la imagen anterior para ir directamente a a la página de esa preferencia.

The options in this window apply mainly to the Spectrogram and Espectro logarítmico(f) views in the Menú desplegable de pista. Some options have no effect, or a different effect, on the Tono (EAC) view - these will be noted in the descriptions.

Ventana FFT

• Tamaño de ventana: The drop-down menu lets you choose the size of the Transformación de Fourier rápida (FFT) window which affects how much vertical (frecuencia) detail you see. Larger FFT window sizes give more low frequency resolution and less temporal resolution, and are slower.
• Tipo de ventana: Determines precisely how the spectrogram is computed. 'Rectangular' is slightly faster than other methods, but introduces some artifacts. All methods give broadly similar results.

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• Frecuencia mínima: This value corresponds to the bottom of the vertical scale in the spectrogram. Frequencies below this value will not be visible. This setting has no effect on the Tono (EAC) view. This is because Tono (EAC) view does not display the actual audio signal, but the output from a mathematical transformation of that signal.
• Frecuencia máxima: This value corresponds to the top of the vertical scale. The value can be set to 100 Hz or any higher value. Irrespective of the entered value, the top of the scale will never exceed half the current frecuencia de muestreo of the track (for example, 22050 Hz if the track rate is 44100 Hz) because any given sample rate can only carry frequencies up to half that rate. A good use of this setting is in speech recognition or tono extraction, where you can hide the visually unimportant highest frequencies and focus on the lower frequencies. Again, this setting has no effect on the Pitch (EAC) view.
• Ganancia (dB): This enables you to increase / decrease the brightness of the display. For small signals where the display is mostly 'blue' (dark) you can increase this value to see brighter colours and give more detail. If the display has too much 'white', decrease this value. The default is 20dB and corresponds to a -20 dB signal at a particular frequency being displayed as 'white'. The option has no effect on the Tono (EAC) view.
• Rango (dB): Affects the range of signal sizes that will be displayed as colours. The default is 80 dB and means that you won't see anything for signals 80 dB below the value set for 'Rango'. This option has no effect on the Tono (EAC) view.
• Ganancia de frecuencia (dB/dec): A positive value here gives some extra gain to higher frequencies (above 1000 Hz), as they tend to be smaller and so can't be seen as well. You get less gain at lower frequencies as well. The default is 0 dB. Setting this option to any value other than 0 or 1 will make the Tono (EAC) view unusable.
• Mostrar el espectro utilizando escala de grises: Muestra sombrar grises en todas las tres pistas en lugar de colores.