- Changed read ahead buffer sizes from 16960 kB to 17000 kB to reduce I/O jitter
- Adjusted NrRequests of I/O scheduling
- Adjusted "extras/jitter-reducer.sh" for Galaxy S4 (A12)
- Added mock equipment filters (in-DAC over-sampling filters and a mastering tool re-sampler) in "Usage Samples/Resampling"
Note: Those who are curious about in-DAC over-sampling filter distortion, please try mock series shell scripts in "Usage_samples/Resampling" folder after setting the input sample rate of your USB DAC to be 353kHz (8x over-sampling) or 705 kHz (16x over-sampling). You could know pre-echo, ringing, and intermodulation (an ultrasonic frequency effect) in USB DAC's by comparing to a mastering quality re-sampling. Don't forget to use "Audio Misc. Settings", "audio-jitter-silencer", and "extras/jitter-reducer.sh" for reducing audio jitter ultimately.
Edit:
- Adjusted mock DAC-C filter shell script for better spaciousness
Edit2:
- Recommended music streaming services (under ultimately reduced jitter circumstances): "Youtube Music" and "Spotify",
because of both not using a much worse internal re-sampler in their player and not adding considerable "post-echo" (ringing) into HD and AAC tracks by some production process, unlike other services