Multifunctional acoustic circuit enabling networking function and external connection audio source playing

Abstract

The invention discloses a multifunctional audio circuit with networking function and capable of playing an external audio source, which is provided with a control circuit system, an audio processing circuit, a wireless transmitting circuit, an audio system and a power supply circuit, and the power supply circuit is connected with the control circuit system and the audio processing circuit respectively. The control circuit system is connected to the audio processing circuit, the audio processing circuit is connected to the wireless transmitting circuit, and both the audio processing circuit and the wireless transmitting circuit are connected to the audio system; the power supply circuit is provided with an inductor L1, a capacitor C1, a capacitor C2, a diode D1, three-terminal regulator U1, capacitor C3, capacitor C4, three-terminal regulator U2, capacitor C6, capacitor C7, capacitor C8, three-terminal regulator U3, capacitor C9, capacitor C10, capacitor C11, can use 3.3 The v regulated power supply and the 5v regulated power supply supply power to the control circuit system and the audio processing circuit respectively, and a three-terminal voltage regulator is used to set the conversion between voltages.

Description

technical field [0001] The invention relates to the field of audio technology, in particular, it is a multifunctional audio circuit with networking function and capable of playing external audio sources. Background technique [0002] Sound refers to sounds other than human language and music, including sounds from the natural environment, animals, machines and tools, and various sounds from human actions. Audio probably includes power amplifiers, peripheral equipment (including compressors, effects, equalizers, VCD, DVD, etc.), speakers (speakers, speakers), mixers, microphones, display devices, etc. add up to a set. Among them, speakers are sound output devices, speakers, subwoofers and so on. A speaker includes high, low, and medium speakers, three but not necessarily three. [0003] The development history of technology can be divided into four stages: tube, transistor, integrated circuit, and field effect tube. [0004] Ordinary (speaker) sound production principle, m...

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Problems solved by technology

[0004] Ordinary (speaker) sound production principle, medium resonance hybrid sound, sound production principle, using vibrator vibration sound + paper tympanic membrane horn sound, we often use audio people know, ordinary audio in addition to professional audio, ordinary ordinary audio is heavy Bass is not enough, and those with better bass are generally not small in size. This is mainly because the speakers that use speakers are greatly affected by the size of the sounding unit. Therefore, many multimedia speakers directly use subwoofers and external speakers to fully expand their volume. The volume range of the sounding unit, but this has a great limit on the shape of the audio system, which is why the speakers we see in the market are generally square, square, and angular, and the bass effect is not very good. it is good

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