What does downsampling mean?
Definitions for downsampling
down·sam·pling
This dictionary definitions page includes all the possible meanings, example usage and translations of the word downsampling.
Wiktionary
downsamplingnoun
The process of reducing the sampling rate of a signal
Wikipedia
downsampling
In digital signal processing, downsampling, compression, and decimation are terms associated with the process of resampling in a multi-rate digital signal processing system. Both downsampling and decimation can be synonymous with compression, or they can describe an entire process of bandwidth reduction (filtering) and sample-rate reduction. When the process is performed on a sequence of samples of a signal or a continuous function, it produces an approximation of the sequence that would have been obtained by sampling the signal at a lower rate (or density, as in the case of a photograph). Decimation is a term that historically means the removal of every tenth one. But in signal processing, decimation by a factor of 10 actually means keeping only every tenth sample. This factor multiplies the sampling interval or, equivalently, divides the sampling rate. For example, if compact disc audio at 44,100 samples/second is decimated by a factor of 5/4, the resulting sample rate is 35,280. A system component that performs decimation is called a decimator. Decimation by an integer factor is also called compression.
ChatGPT
downsampling
Downsampling refers to the process of reducing the number of samples or data points in a digital signal or dataset. This involves reducing the resolution of the signal or dataset by discarding or merging some of the existing samples. Downsampling is commonly performed to decrease the file size, simplify data analysis, or adapt the signal to a lower sampling rate. This technique is widely used in various fields including digital signal processing, data compression, image and audio processing, and data analysis.
Wikidata
Downsampling
In signal processing, downsampling is the process of reducing the sampling rate of a signal. This is usually done to reduce the data rate or the size of the data. The downsampling factor is usually an integer or a rational fraction greater than unity. This factor multiplies the sampling time or, equivalently, divides the sampling rate. For example, if 16-bit compact disc audio is downsampled to 22,050 Hz, the audio is said to be downsampled by a factor of 2. The bit rate is also reduced in half, from 1,411,200 bit/s to 705,600 bit/s, assuming that each sample retains its bit depth of 16 bits.
Numerology
Chaldean Numerology
The numerical value of downsampling in Chaldean Numerology is: 5
Pythagorean Numerology
The numerical value of downsampling in Pythagorean Numerology is: 3
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Translations for downsampling
From our Multilingual Translation Dictionary
- الاختزالArabic
- DownsamplingGerman
- submuestreoSpanish
- پایین نمونه گیریPersian
- sous-échantillonnageFrench
- downsamplingHindi
- lemintavételezésHungarian
- downsamplingIndonesian
- downsamplingItalian
- דגימהHebrew
- ダウンサンプリングJapanese
- ಡೌನ್ಸಂಪ್ಲಿಂಗ್Kannada
- 다운 샘플링Korean
- downsamplingPortuguese
- даунсамплингRussian
- downsamplingTamil
- downsamplingTelugu
- ลดขนาดThai
- downsamplingUkrainian
- ڈراپ لگاناUrdu
- 下採樣Chinese
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"downsampling." Definitions.net. STANDS4 LLC, 2025. Web. 14 Mar. 2025. <https://www.definitions.net/definition/downsampling>.
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