음향:signal_processor:dithering

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--- 음향:signal_processor:dithering [2024/07/03] – 정승환
+++ 음향:signal_processor:dithering [2025/02/13] (현재) – 바깥 편집 127.0.0.1
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 ======Dithering======
-Dithering is an important technique used in digital audio processing to manage quantization error and enhance the quality of audio signals. In digital audio, continuous analog signals are represented in a digital format, and this involves expressing a finite amount of information using a limited number of bits. For example, a 16-bit representation of audio can only represent approximately 65,536 different values. Consequently, discrepancies arise between the continuous analog signal and its digital representation, which is referred to as quantization error.
+Dithering is an important technique used in digital audio processing to manage quantization error and enhance the quality of audio signals. In digital audio, continuous analog signals are represented in a digital format, and this involves expressing a finite amount of information using a limited number of bits. For example, a 16bit representation of audio can only represent approximately 65,536 different values. Consequently, discrepancies arise between the continuous analog signal and its digital representation, which is referred to as quantization error.
 Dithering involves adding small random noise to the audio signal. This noise mixes with the quantization error, making the audio signal sound more natural and reducing the noise that occurs during the conversion from digital to analog.
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 디지털 신호를 재생시에 오리지널 신호화의 1비트의 차이가 날 수 밖에 없기 때문에, 이 부분의 소실이 사람에게는 역으로 청감상 고주파수 대역에 노이즈로 인식될 가능성이 있다. 이렇게 인식되는 노이즈를 양자화 노이즈라고 한다.
-{{ youtube>U2mwXiJqAgA?large }}\\
+{{ youtube>U2mwXiJqAgA?full }}\\

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음향/signal_processor/dithering.1719948514.txt.gz · 마지막으로 수정됨: 2024/07/03 저자 정승환