downsample


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downsample

(1) To make a digital audio signal smaller by lowering its sampling rate or sample size (bits per sample). Downsampling is done to decrease the bit rate when transmitting over a limited bandwidth or to convert to a more limited audio format. Contrast with upsample. See sampling.

(2) To decrease the bit depth of a digital image; for example, from 24 bits to 16 bits per pixel. Contrast with upsample. See bit depth and downconvert.
References in periodicals archive ?
Previously this algorithim designed with different subsampled (oversampled or downsample and upsample) factors like 4,8,12,24 and so on upto 33.
IIP eliminates the need to manually alter every image published since it can essentially downsample "on the fly" while allowing users to zoom in on the images they want to see in more detail.
The FC727 upsamples and downsamples, bi-directionally, ProTools' 24-bit/48 kHz tracks to 24-bit/96 kHz.