The core of the patented solution dedicated to a wide class of noise pollution problems is a recently invented principle to design and construct Anechoic Broadband Compact (ABC) mufflers and Acoustic Tapes. Construction-wise the muffler/tape is simply consisting of a stack of perforated plates/sheets separated by thin spacers. The know-how is based on the proper combination of the governing parameters of the construction. When properly designed, the thermal and viscous losses between the plates efficiently absorb the incident noise. The competitive advantage is that the sound absorption coefficient can be as high as 99% at 2 Hz- 20kHz with a back cavity, particularly in ultra-low frequencies (below 100 Hz) which is the most difficult noise to be absorbed. Also, the ultra-thin (<1mm) Acoustic Tapes (without back cavities) can be tuned to have high absorption up to 65% at ultra-low frequencies.