Chapter 6. Sound Settings | 45 |
Beware that the crossfeed function is capable of making the audio distort if you choose settings which result in a too high output level.
6.8 Equalizer
Figure 6.2: The graphical equalizer
Rockbox features a parametric equalizer (EQ). As the name suggests, a parametric EQ lets you control several di erent parameters for each band of the EQ. In some ways the EQ is similar to the Bass and Treble settings described earlier, but the EQ allows you to control the sound much more carefully.
Rockbox’s parametric EQ is composed of ve di erent bands:
Band 0: Low shelf lter The low shelf lter boosts or lowers all frequencies below a certain frequency limit, much like what a \bass" control found on ordinary stereo systems does. Adjust the \cuto " frequency parameter to decide where the shelv- ing starts to take e ect. For example, a cuto frequency of 50 Hz will adjust only very low frequencies. A cuto frequency of 200 Hz, on the other hand, will adjust a much wider range of bass frequencies. The \gain" parameter controls how much the loudness of the band is adjusted. Positive numbers make the EQ band louder, while negative numbers make that EQ band quieter. The \Q" parameter should always be set to 0.7 for the shelving lters. Higher values will add a small boost around the cuto frequency that is almost always undesirable.
The Rockbox manual | Toshiba Gigabeat F Series |
