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DSD Mastering

Convert your Hi-Res lossless audio through a 64-bit double-precision floating-point pipeline into DSD64/128/256/512, supporting both 44.1kHz and 48kHz base rates. The resulting DSD files can be authored into SACD ISO or played back directly.

✦ Source noise reduction & dynamics optimization with noise analysis + adaptive algorithms
✦ Multi-stage MASH noise shaping: equivalent 7th order, inter-stage TPDF dithering eliminates idle tones
✦ Upsampling filter: single-stage Kaiser sinc, 65536 taps / stopband >100 dB
✦ Delivery in DSF / DFF / DFF+DST (24-bit precision output)

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SACD ISO

Author your lossless album into an ISO image compliant with the SACD Red Book specification. Supports both 44.1kHz and 48kHz base-rate systems (48k-base DST compression is a proprietary technology), with full metadata and ISRC.

✦ Stereo + Multi-CH support, up to 6 channels of DST lossless compression
✦ 48kHz base-rate DSD/DST SACD — proprietary technology not available in mainstream toolchains
✦ Complete SACD metadata: album/artist/cover/genre/year/ISRC
✦ Delivery as .iso file (compatible with 48k-base SACD players)
✦ SACD ISO available on custom USB drive, plug-and-play

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Mastering Report

Every project includes a professional mastering report PDF showing before/after spectrum comparison, dynamic range (DR), THD+N distortion analysis, noise-shaping curves and 20+ technical parameters, following the IEEE 124 standard format.

✦ Spectrum analysis comparison: FFT 65536-pt, 0.67Hz resolution at 44.1kHz
✦ Dynamic range metrics: DR statistics + peak/true-peak table + loudness (EBU R128)
✦ Noise-shaping curves: MASH residual noise spectrum + psychoacoustic weighting
✦ PDF report delivery with full processing-chain documentation

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DXD Mastering

Upsample PCM to DXD format (352.8kHz/384kHz 24/32-bit) using the same engine-grade FIR upsampling chain as DSD (65536-tap Kaiser sinc), outputting WAV/Wave64/FLAC — compatible with all major DAWs, no special player required.

✦ Same 65536-tap Kaiser sinc upsampling filter as the DSD engine, stopband >100 dB
✦ Output 32-bit float WAV / Wave64, 24-bit FLAC — directly editable in any DAW
✦ Steep Kaiser-sinc low-pass + downsampling to 8x original rate (44.1k→352.8k, 48k→384k)
✦ Skips noise shaping and Σ-Δ modulation — preserves pure PCM precision as an alternative path

dpdo engine technical advantages

Noise shaping：MASH 4-2-1 equivalent 7th order; 0-42kHz baseband noise below -90 dBFS
Upsampling filter：Kaiser sinc, up to 65536 taps, stopband >100 dB
Dual base rates：Proprietary 48 kHz base-rate DSD/DST SACD (unsupported by mainstream toolchains)
DXD output：352.8kHz/384kHz 32-bit float WAV/Wave64, 24-bit FLAC, DAW-readable
Internal precision：IEEE 754 64-bit double-precision floating point
DST compression：SACD ISO supports lossless DST compression, 2:1–3:1 ratio
Delivery specs：DSD64 / DSD128 / DSD256 / DSD512, DXD, SACD ISO + spectrum report

Complete DSD Mastering Solutions

DSD Mastering

SACD ISO

Mastering Report

DXD Mastering

dpdo engine technical advantages

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