Of course, it is the electronic engineer's business to design the sound circuit, but if the electronic engineer does not learn a little about acoustics, the designed thing can only be called a machine rather than a sound. Although most audio equipment manufacturers often brag about how deep their understanding of music is, you do n’t have to take it too seriously. The karaoke vocal booster circuit introduced below is a triumph for the author. At that time, the author once made a design in a well-known audio equipment manufacturer. In the design of an entry-level karaoke amplifier, the author connected this circuit behind the microphone amplifier circuit. As a result, the karaoke singing effect of this machine exceeded that of the same. The factory's high-end machines surprised all the senior engineers and bosses. The secrets were not well-known at the time.
The circuit is very simple, two filters with the same structure, one raises the frequency at 150Hz to make the vocals plump and full of energy, and one raises the frequency at 2400Hz to make the vocals brighter and the tooth sounds also get Good performance. The improvement of the effect is based on the principle of acoustic analysis of sound waves in acoustic knowledge, and the circuit is the means of realization. Below is the frequency response diagram of this circuit. It is quite simple to say and looks very simple, but it can be sung, a bit of a singer's taste!

Follow WeChat

Download Audiophile APP

Follow the audiophile class
related suggestion
Karaoke effects are mainly divided into two types: analog and digital (DSP). Which one is better than others? Different manufacturers have their own opinions based on their own interests. After all, end users ...
As shown in Figure 5-120 is the use of TDA2822 features designed playback circuit. It sends the same amount of stereo L and R channels simultaneously and sends them separately ...

The birthplace of karaoke is in Japan. The original text is Karaoke, which means "unaccompaniment ...
Mobile Karaoke System Introduction In today's society full of competition and challenges, people's lives seem increasingly tense and busy ...

In recent years, karaoke has become popular in every corner of the country.

In 2005, "Super Girl Voice" pushed the civilian entertainment movement to the extreme, and the entertainment industry has a promising prospect. At the same time, our netizens ...