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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, which contributes to a more powerful and louder sound output.
In addition to these benefits, there are four key advantages:
1. Audio processors effectively address the issue of large level differences caused by varying recording methods, program exchanges, content types, and different playback devices. This is difficult to manage manually during live adjustments.
2. They create the necessary conditions for balancing volume between speech programs and music programs, ensuring a more consistent listening experience.
3. During low-level parts of a program, the processor can amplify weak signals, preventing them from being masked by background noise. For example, the treble components, which are often low in level, can be enhanced after processing. High-frequency elements not only improve clarity but also have a psychological and physiological impact on perceived loudness. As a result, the audience feels the sound is louder and more engaging.
4. Stereo broadcasting covers a wider area than mono broadcasting with the same power level. By increasing sideband power through audio processing, the signal strength at the receiver may be slightly lower than required, yet it results in better quality and extended coverage.
The processed music has an average power that is 8.2 dB higher than before processing. Compared to the typical 15 dB compression limit, the actual compression achieved is 5.9 dB, which equates to four times the transmission power. Using an audio processor to expand coverage saves significant power, equipment costs, and maintenance expenses compared to other methods, making it a highly cost-effective solution. However, it's important that the audio processor compresses the program content appropriately. Over-compression can damage the original content, harm the artistic value of the music, and diminish the unique characteristics of stereo broadcasts.
In summary, at the input end of the transmitter, a high-quality audio processor should be used to compress the dynamic range of the program, increase loudness, extend coverage, and ensure high-quality stereo broadcasting. With current technology, audio processors can fully meet the demands of high-fidelity broadcasting, delivering a sound that sounds natural and unprocessed. The processed audio not only preserves the original sound but often enhances it, resulting in a clearer, more pleasant, and more beautiful listening experience.