Showing posts from 2022

How to improve redmi note 11 pro 5G camera

  Redmi note 11 pro 5G is a decent phone, it has a 108 mp camera (Samsung hm2 sensor) but the Picture capture from the stock camera app is full of noise (see below picture) But you can improve camera quality by just installing Gcam mod from the internet and enjoy the high-quality pictures from redmi note 11 pro 5G. The G-cam mod is working for this phone without root access. You can see the picture comparison below. As you can see images above the APS-C sensor size(eos m100) camera has more noise but more details and better color but redmi note 11 pro 5G has a smaller sensor size so the Gcam algorithm is superb. However, the Gcam has its own limit, it can't capture fast-moving object because hdr+ capture several pictures and combine them into one final image. The picture may have low noise but it lost details when captured in a dark environment and it may be the redmi note11 5G not fully compatible with Gcam. see more sample images below. The daylight picture looks decent so I don&

How to improve bookshelf loudspeaker sound

 My audience on my youtube channel asked me how to find a crossover network capacitance and inductance so I will make it here The speaker I made crossover network is a microlab b77. The speaker lacked the woofer's crossover network, no absorbent so I fixed it for cleaner sound and changed the tweeter's high pass filter to a better one. Step 1 Change the old capacitor to a metalized polypropylene capacitor (very clean sound). The capacitor value is 4 uf and the speaker is 8 ohms so the crossover frequency =1/6.28x8x4 = 0.004976 x 1,000,000 = 4976 Hz (x1,000,000 come from Farad to microfarad) If you want to find crossover frequency C= 0.1590/(R x F) x 1,000,000 for uf Step 2 Find induction for the woofer. L = .1592 x 4(woofer resistance)/4976(Hz) =1270 micro Henry x1000 = 0.127 mH but I has 0.1 mH so the crossover point may change a little but not much. If you want the complete sound you may find 0.127 mH Speaker crossover diagram. Step3 Add absorbent to the speaker cabinet. The