Digital sound console and power amplifier integrated machine

Abstract

The invention discloses a digital sound mixer and an integrated power amplifier machine. An analog input circuit is electrically connected with a digital audio treatment system through an analog-digital conversion circuit. An analog input regulating circuit is electrically connected with the digital audio treatment system. A digital power amplifying treatment system is arranged at a back end of the digital audio treatment system, and a left track power amplifying output port, a right track power amplifying output port and a monitor track power amplifying output port are arranged at a back end of the digital power amplifying treatment system. The invention has the advantages that the audio frequency with 16 resolution can be generated and the accuracy can reach 1 / 24th power of 2. And the recording effect is excellent and the sound becomes purer. Multimedia port and digital ports are arranged simultaneously to satisfy the present multimedia and digital sound source requirement, etc. and the application scope is greatly enlarged. By adopting the digital mode, the sound mixer can have small volume, light weight and convenient usage and carrying.

Description

technology field, [0001] The invention relates to a digital audio equipment, in particular to a digital mixer and power amplifier integrated machine. Background technique [0002] Most of the existing mixing consoles are dedicated to analog audio sources, and their structures include an analog input circuit, an analog input adjustment circuit, an analog audio processing system and an analog power amplifier processing circuit. The analog audio signal enters the analog audio processing system after being processed by the analog input circuit, and then the analog audio signal enters the back-end equipment through the analog power amplifier processing circuit. The analog input adjustment circuit adjusts the parameters of the input audio signal by controlling the analog input circuit. Includes pitch, gain and volume. There are many defects in the existing analog mixers. First, the accuracy in the recording process is generally only 1 / 8000, and can only generate audio with a reso...

AI Technical Summary

Problems solved by technology

There are many defects in existing analog mixers. First, its accuracy is generally only 1 / 8000 in the recording process, and it can only generate audio with a resolution of 12 to 13.5 bits, which makes the recording effect relatively poor.

Second, analog mixers are susceptible to noise interference, and it is difficult to improve the signal-to-noise ratio and dynamic range

Third, the input interface of the analog mixer is relatively simple, and can only receive traditional analog signals. Now with the development of science and technology, the emergence of digital audio sources such as CD, MP3, DVD and computer networks makes the use of analog mixers more difficult. The range is greatly limited. Fourth, the analog mixer is bulky, heavy, and inconvenient to carry

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