Therefore before analog filtration, deep digital inline ("on fly") filtration is used. We can say, that analog filter connect "stairs" of digital samples via uninterrupted flexible line.īut for analog filter it is very hardly to achieve deep filtration of aliases (distortions) during digital-analog conversion. When digital signal is converted to analog into Digital Analog Converter ( DAC), usually, audio data from music file is upsampled to higher sample rate for digital filtration before analog filtration.Īnalog filtration restore analog signal from digital signal. Read details here How to improve sound quality > Resamplers' comparison hereīut for some cases resampling may be useful.ģ2 bit 384 kHz FLAC is maximal resolution of Free Lossless Audio Codec. Resampling quality depend on implementations.
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