![]() stability DSD modulator issues (overload can cause break of work of DSD modulator),ĭifferent issues may be fixed/improved in latest versions of a software. I can’t disclose our internal research results about our competitors (including free) by ethical reasons.įor bit-perfect extraction may be lost last audio data blocks of extracted stuff (audible as clicks on borders of the songs) during extraction.ĭifferent converters (non-bit-perfect extraction) may have different: Information about optimized mode (there about PCM, for DSD also used 20 kHz filtering) in optimized mode Īs audio quality I consider as minimal distortions of original stuff after conversion. But not for all playback hardware and software. Reasons of non-linear distortions may be in software or/and hardware.Įxtracting DSF from ISO in AuI’s optimized mode may improve signal/noise ratio. Same things are happen with DXD records, that have significant non-filtered ultrasound noise derived from DSD. I suppose, that you hear this shifted ultrasound noise. It «kill» some part of dynamic range of audible signal only.īut in real apparatus due non-linear distortions this non-filtered ultrasound noise shifted to audible range. In ideal apparatus ultrasound noise is inaudible. For this case noise level will lower.įor other demodulators that have higher cutting frequency - DSD’s own noise passed by to output. These demodulators must have lower cutting frequency. With some DSD demodulators it can give noise decreasing. ![]() If ISO to DSF is converted (via AuI ConverteR) in optimized mode (with audio processing - not bit perfect), AuI filter high frequencies above 20 kHz. Processing that may be applied in AuI (for non-bit-perfect mode): resampling/filtering, clickless, gain, normalizing level. DSD demodulator may be used in playback software or DAC. Modulator may be used in conversion software (if extracted DSD is processed). Application is closed after conversion of one file.When we playback DSD, noise level depend on both DSD modulator and demodulator. Level of conversion noise equal -140 dB is reached at bit per sample not less than 24 bits, or 32 and 64-bit float.Ģ. Remarks: level noise of output file depends on bit per sample of input and output files. Level of conversion noise (artifacts) at 20.20500 Hz, better than: -140 dB. The amount of channels - as input file.ģ. Format of output files (not compressed WAV)Ģ.1. The support of multichannel audiofiles - yes.Ģ. ![]() Format of input files (FLAC, not compressed WAV, AIFF)ġ.1. Double precision (64-bit float) algorithms used for calculations.ġ. Signal level automatic scaling at reduction of bit per sample (as example, input=24 to output=16 bit per sample).ģ. That's below a theoretical limit of noises for 16-bit samples of compact disk (16 bits multiplied at minus 6 dB/bit = -96 dB) and below noises analog-digital convertors of 24-bit soundcards (above -120 dB).Ģ. Accurate algorithm of sampling rates conversion, used in AuI ConverteR 48x44, has allowed to reduce level of conversion noise (artifacts) to -140 dB (24-bit and more samples). ![]() Recommended for pro recording studios and exacting audiophiles.ġ. Professional high-precision sample rate converter for lossless audio files. ![]()
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