Design and implementation of multi-source multi-standard audio processing system

Fanchang Zeng; Dewei Zhao

doi:10.1117/12.2641382

4 August 2022 Design and implementation of multi-source multi-standard audio processing system

Fanchang Zeng, Dewei Zhao

Proceedings Volume 12306, Second International Conference on Digital Signal and Computer Communications (DSCC 2022); 123060H (2022) https://doi.org/10.1117/12.2641382
Event: Second International Conference on Digital Signal and Computer Communications (DSCC 2022), 2022, Changchun, China

Abstract

In order to meet the processing requirements of network digital audio and analog audio, as well as the needs of multisource and multi-standard audio signal amplification, volume adjustment, and sound and light alarms in important scenarios such as shipborne, vehicle-mounted, and airborne, it closely tracks sonar, navigation, etc. Century application requirements of other scenarios. The audio filtering, digital volume control algorithm, etc. are studied, and a multi-source multi-standard audio processing system is designed and implemented, which realizes multi-channel network real-time digital audio reception, signal amplification, and volume adjustment. The design follows generalization and modularization. , Serialized design ideas to ensure better applicability and higher reliability. After the design is completed, the analog audio filter circuit is simulated. The amplification factor is 31dB, the attenuation at 100Hz is 32.9dB, and the in-band fluctuation is 1.59dB, all of which meet the design requirements. The multi-source and multi-standard audio processing system supports the reception of 20 channels of real-time digital audio in the mono network, real-time processing, and independent selection of the audio signal to be broadcast. The delay jitter does not exceed 2 ms, and the system functions and performance reach the expected goals.

Citation Download Citation

Fanchang Zeng and Dewei Zhao "Design and implementation of multi-source multi-standard audio processing system", Proc. SPIE 12306, Second International Conference on Digital Signal and Computer Communications (DSCC 2022), 123060H (4 August 2022); https://doi.org/10.1117/12.2641382

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