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Transform coding of audio

Original audio: Mono, 16 bits/sample, 44100 sample/s, 705.6 kbps


Zonal coding. Lloyd-Max quantization. 2 bits/sample (88.2 kbit/s)


Uniform quantization (same stepsize for all transform components). Huffman coding. 2 bits/sample (88.2 kbit/s).


JPEG coding of still image

Original image: 768x512 pixels, 24 bits/pixel (RGB)


JPEG, 25 times compression, 0.96 bits/pixel


JPEG, 50 times compression, 0.48 bits/pixel


JPEG, 100 times compression, 0.24 bits/pixel


JPEG, 200 times compression, 0.12 bits/pixel


JPEG, 400 times compression, 0.06 bits/pixel