acoustic filter การใช้

Phoneticians were able to replay the speech signal several times and apply acoustic filters to the signal.
Quantity and position of the foam is critical to engineer a low pass acoustic filter that provides adequate attenuation of the upper bass frequencies, whilst allowing an unimpeded path for the low bass frequencies.
Quantity and position of the foam is critical to engineer a low-pass acoustic filter that provides adequate attenuation of the upper bass frequencies, whilst allowing an unimpeded path for the low bass frequencies.
With full basket windshields there is an additional pressure chamber effect, first explained by Joerg Wuttke, which, for two-port ( pressure gradient ) microphones, allows the shield / microphone combination to act as a high-pass acoustic filter.
The system that handles these tones is called the Automated Coin Toll Service, or ACTS . However, since ACTS has been phased out of service in much of the United States, combined with the integration of acoustic filters into many payphone handsets, the practice of red boxing is rarely possible anymore.