Unfortunately the sound enhancer does not have a per-song assignment option, so if you find songs that this does not work for, then you will have to turn it off in the iTunes preferences. You can also adjust the song's volume as well, since some albums or tracks may have been recorded at quite significantly lower volumes than others. In the information window, click the Options tab and choose your new preset from the "Equalizer Preset" menu. Then select the songs you wish to apply the preset to and get information on them by pressing Command-I. In these cases you can create a custom equalization setup, then save it using the equalizer's preset menu. If attended to with care, these two settings in iTunes can be more than enough to greatly enhance the quality of your entire music library, but there may be instances where specific songs or albums might need very unique equalization settings. The preamp allows you to equally dial back the power through all frequencies, maintaining the current equalization balance but rolling off any saturation that results from it. By increasing the power in each frequency channel you risk saturating the signal, which pushes it to the edge of its dynamic range, thus clipping it and resulting in static and other harsh sounds. Part of the equalizer is the preamp slider, which adjusts the overall gain through the equalizer. Apple includes a number of equalizer presets in the equalizer's menu that you can use as starting points for various genres of music. Keep in mind you can also lower frequency levels instead of just accentuating them.Įqualizer settings depend on both the song being played and the speaker system being used, but a commonly recommended equalizer setting is to enhance around a peak of 125Hz to 250Hz and then also at around a peak of 8KHz, slightly dropping the values surrounding these peaks. The iTunes equalizer preamp setting can dial back saturation that develops from boosting certain frequencies. 16KHz: The "fidelity" range, where adjustments can affect the overall "clarity" of sounds but too much may bring out white noise (high hiss sounds) in the signal.
8KHz: High or sharp crashes and bangs such as cymbals and things that screech will be affected most in this range.4KHz: The sweet spot for melodic components of music (wailing guitar solos and fancy piano runs, etc.).
2KHz: Most standard vocals are affected by this range.1KHz: Most musical instruments and vocals will be greatly affected starting in this range and going higher.500Hz: Deep vocals (i.e., Barry White) and bass instruments.250Hz: The beginning of most musical instruments' low-end ranges, including guitar, cello, and piano.125Hz: The low-end of most bass instruments.64Hz: Deep throbbing or rumbling bass signals (i.e., kettle drums or gongs), primarily audible on high-end speakers or those with subwoofers.32Hz: Mainly the power of bangs, thumps, and kicks (i.e., bass drum beats).Proper equalization of a signal is an art form in its own right, but for starters the following is a decent guideline to use: The next component is the iTunes equalizer, which allows you to adjust the relative power of the frequency ranges in the signal to enhance different aspects of what's being played. The effect will be different for different songs and encodings, so selecting an extremely high setting may, for some songs, result in odd and sometimes unpleasant sounding music. I recommend adjusting this setting by playing a song or two without it, then enabling this feature and setting the slider at the extremes of its range to hear the difference, and finally by finding the midrange level that works best for you. The level of this effect can be adjusted with the slider next to the check box that enables it. This mysterious feature enhances music quality by not only adjusting the treble and bass of the output, but also blending various phase components of the audio across channels and mixing them in stereo to give it more depth. The Sound Enhancer setting can add a great deal of depth to an otherwise flat-sounding audio file. The first of these is the Sound Enhancer setting in the iTunes preferences, which is activated by going to the Playback section of the iTunes preferences and checking the "Sound Enhancer" check box.
The program offers simple controls for sorting through music, generating playlists, and playing your music, but in addition there are some settings that can be used to greatly improve sound quality during playback.
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While there are a number of media players and audio programs that can be used to play music through your Mac, iTunes being a library and content manager as well as a player that comes preinstalled on Mac systems makes it the most popular option out there.