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How can I make the audio processor more reasonable?
Audio devices in security systems have significantly boosted the use of audio processors. These processors not only help reduce peak levels but also enhance average modulation and increase sideband power, ultimately boosting perceived loudness.
In addition to these benefits, there are four key advantages:
1. They address the issue of large level differences in programs caused by varying recording conditions, content types, and playback equipment. Manually adjusting these differences is time-consuming and inefficient, but audio processors handle it automatically.
2. They enable a balanced volume between spoken programs and music, ensuring a more consistent listening experience for the audience.
3. Audio processors can amplify weak signals during low-volume periods, preventing them from being masked by background noise. This is especially useful for enhancing high-frequency components, which are crucial for clarity and perceived loudness. Improved clarity makes the program sound louder and more engaging.
4. They support stereo broadcasting, which covers twice the area of mono broadcasting at the same power level. By increasing sideband power, audio processors allow for slightly lower carrier field strength while still delivering high-quality reception and broader coverage.
The processed music has an 8.2 dB higher average power compared to the original. With a typical compression limit of 15 dB, the actual compression achieved is 5.9 dB, equivalent to four times the transmission power. Using an audio processor to expand coverage is far more cost-effective than other methods, saving on power consumption, equipment costs, and maintenance. However, it's essential to compress the program appropriately—over-compression can harm the artistic quality of the music and degrade the stereo effect.
In summary, at the input stage of the transmitter, a high-quality audio processor should be used to compress the dynamic range, boost loudness, extend coverage, and ensure high-quality stereo broadcasting. Modern audio processors are advanced enough to deliver high-fidelity sound without any noticeable processing artifacts. The final output sounds natural, clear, and even more pleasant than the original.