What is Acoustic Echo Cancellation？
Acoustic Echo Cancellation (AEC) is essential for enhancing audio clarity in communication systems, particularly in video conferencing and telephony. By using advanced algorithms, AEC effectively distinguishes between the speaker’s voice and unwanted echoes, eliminating disruptive feedback. This technology significantly improves user experience, ensuring seamless and…
Lesson 7: Color Sample And Store
In the previous two articles, we discuss the relationships among color spaces, pixels, images, and videos. We also talk in detail about the sampling and storage formats for a red, green, and blue (RGB) color space and a luma, blue projection, and red projection (YUV)…
Lesson 6: RGB Color And YUV Color
The previous part of this lesson describes the relations between the video, image, pixel, and color, and also introduces two popular types of color spaces. One is RGB color, which is widely known, and the other is YUV color, which is frequently used for videos….
Lesson 5: Color and Color Space
Preface In previous articles, we have learned the audio basics. Today, we are going to move on to the video part. Sounds play an irreplaceable role in our daily life, work, and entertainment, but we often say that “seeing is believing”. Actually, we have been…
Lesson 4: Audio Encoding And Decoding
Advanced Audio and Video Development — Lesson 4: Necessity and Format Selection of Audio Encoding and Decoding In the previous lesson, we learned about the three A’s for audio pre-processing. After being processed by the audio pre-processing module, sound signals are purified. Before you want…
Lesson 3: Automatic Gain Control (AGC)
Previously we had talked about Acoustic Echo Cancellation (AEC), an important audio pre-processing module that effectively removes acoustic echoes and noise in real-time communications (RTC), significantly improving user experience. In this lesson, we are going to introduce Automatic Gain Control (AGC). Volume Problems in Real-life…
Lesson 1: Elements Of Audio
To help developers better understand concepts related to audio and videos and easily build audio and video apps, ZEGOCLOUD has developed this Advanced Audio and Video Development course with the help of its internal experts. This course includes a series of lessons. We will start with…
How Low-Light Image Enhancement Technology Helps You Improve User Experience
When visibility is low at night and you turn on your smartphone camera, the video preview is full of darkness, and the visibility is even lower than what you can see. With the surging of real-time video apps, we have seen various video enhancement technologies…
