User manual

19 / 36

DirectSDM setting disables all processing when source file is DSD content and output

format is SDM to a DSD-device.

DSDIFF or DSF file should typically have 6 dB of headroom on the signal level. By

selecting “6 dB gain” check box, 6 decibels of gain is applied, removing this headroom

from the converted signal. This way the normal playback level reaches that of CD,

FLAC, WAV or AIFF. However, this may cause digital clipping with some source

material and thus use of 6 dB gain is not recommended!

Type of conversion can be selected from the “Conversion type” drop list. Following

conversion types are supported.

Conversion type Description

traditional Traditional recursive conversion algorithm.

Minimizes amount of ringing by using slow

roll-off filters.

single-steep Single-pass conversion algorithm with steep

cut-off.

single-short Single-pass conversion algorithm with

normal cut-off. Optimized tradeoff between

ringing and wide frequency response.

poly-lin Linear-phase single-pass conversion

algorithm.

poly-mp Minimum-phase single-pass conversion

algorithm.

poly-short-lin Linear-phase slow roll-off single-pass

conversion algorithm. Recommended.

poly-short-mp Minimum-phase slow roll-off single-pass

conversion algorithm.

Different types of noise filters are provided. These reduce amount of ultrasonic noise

present in the source data. Standard filtering leaves low level of ultrasonic noise.

Some loudspeakers with tweeters of low power handling capability can be sensitive to

this noise, especially when higher listening volumes are used. Also some poorly

designed amplifiers can misbehave in presence of such ultrasonic content. Therefore

more aggressive noise filters can be selected by using “Noise filter” drop list. These

filters will also limit bandwidth available for the audio content. Following filters are

supported.

DSDIFF/DSF settings dialog