Fullsound is a sound effect that the famous Philips uses to remove the "digital taste" and "distortion" of MP3 music and make it closer to the restoration of real sound effects.
We know that MP3 is a digital audio compression format. Its principle is to encode and compress the remaining information after removing the sound signal beyond the hearing range. After this digital processing, the sound wave curve cannot maintain its original smoothness and becomes jagged, so the MP3 sound sounds burr, stiff and cold, lacking the intensity and appeal of live sound effects. To make up for this shortcoming, many audio systems use software to repair the sound signal, such as boosting some frequencies, improving resolution, or expanding the sound field. However, this kind of repair can also easily bring about new shortcomings, namely distortion and Produces noise.
Philips FullSound sound effect technology is tailor-made to improve the sound quality of MP3 playback. Let's see what difference turning off/on FullSound makes to the sound.
As can be seen from the comparison, when the FullSound flying sound effect is turned on, the intensity of the sound is enhanced.
FullSound uses four key audio processing technologies to deliver a full, rich sound experience without the distortion and noise common in most audio enhancement technologies. Philips' patented bass enhancement technology continuously seeks available space in the audio signal to load additional bass energy, achieving enhanced bass and accents without the distortion or pumping effects caused by traditional bass enhancement. Traditional treble enhancement will only cause the sound to be too loud, but FullSound can distinguish the live positions of the lead singer and instruments in the original recording environment. Through transient signal amplification combined with multi-band frequency compensation, it not only highlights the accuracy and details of the sound, but also maintains the frequency. Harmony, thus producing natural sound. In short, FullSound sound effect technology faithfully reproduces the subtle melody of music by strengthening the strength of the bass and adjusting the details of the clarity, providing users with ultra-clear sound quality and consistent timbre enjoyment.
FullSound also includes a small stereo fix to compensate for the lack of space in compressed audio formats due to stereo encoding and lack of high-frequency resolution. Of course, the degree of this repair effect is extremely small. It is more about achieving true restoration of the sound by increasing depth, effectively avoiding the noise caused by enhanced compression. The sound you will experience is truly surround, clear and natural. The picture below is a comparison of the waveforms of Fei sound effects and ordinary MP3 sound effects