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* Lowered the cut-off freq. a little bit more to tune for recent custom ROM's

Author: yzyhk904

README.md

@@ -33,16 +33,18 @@ Notes:
     | 159 | 480 | 92 | | Old devices of A11 and earlier |
     | 165 | 360 | | 104 | Low performance devices of A12 and later with audio ones having small amp. non-linearity |
     | 179 | 408 | | 99 | General purpose on A12 and later for audio devices having small amp. non-linearity |
+    | 194 | 520 | | 98 | Ultra Hi-Fi for audio devices having small amp. non-linearity |
     | Parameters of this module: | - | - | - | - |
-    | 179 | 520 | 93,94,95 | | AAC or Flac 44.1kHz; for LDAC BT earphones and DAC's under $30 both having large amp. non-linearity |
-    | 194 | 520 | 85,86,87 | | Opus 48kHz; for LDAC BT earphones and DAC's under $30 both having large amp. non-linearity |
-    | 194 | 520 | 43,44 | | Hires. 96kHz; for LDAC BT earphones and DAC's under $30 both having large amp. non-linearity |
+    | 179 | 520 | 91 ~ 94 | | AAC or Flac 44.1kHz; for LDAC BT earphones and DAC's under $30 both having large amp. non-linearity |
+    | 194 | 520 | 83 ~ 86 | | Opus 48kHz; for LDAC BT earphones and DAC's under $30 both having large amp. non-linearity |
+    | 194 | 520 | 42,43 | | Hires. 96kHz; for LDAC BT earphones and DAC's under $30 both having large amp. non-linearity |
     | External examples: | - | - | - | - |
     | 100 | 29 | (91) | 109 | AK4493 (Sharp roll-off N-fold over-sampling) |
     | 150 | 42 | (91) | 109 | AK4191EQ (Sharp roll-off N-fold over-sampling) |
     | 120 | 35 | (97) | 110 | ES9038PRO (Fast roll-off N-fold over-sampling) |
     | vary 50 ~ 118 | 34 | 96 | (398) | ES9039PRO (Fast roll-off N-fold over-sampling) |
     | 110 | 40 | (96) | 109 | CS43131 (Fast roll-off N-fold over-sampling) |
+    | 110 | 40 | (96) | 109 | CS43198 (Fast roll-off N-fold over-sampling) |
     | 98 | 130 | 98.5 | | MacOS Leopard (guess) |
     | 159 | 240 | | 99 | iZotope, No-Alias (guess) |
     | 100 | 64 | | 99 | SoX HQ linear phase (guess) |
@@ -59,7 +61,7 @@ Notes:
     | DAC | light | heavy | heavy | AK4491EQ Sharp roll-off |
     | DAC | medium | medium | light | ES9039PRO Fast roll-off |
     | Mastering tool | slight | slight | light | iZotope, No Alias (guess) |
-    | Audio misc. settings | almost none | almost none | light | for general purpose |
+    | Audio misc. settings | almost none | almost none | light | Ultra Hi-Fi |
     | Audio misc. settings | very slight | very slight | medium | for low performance devices |
     | Audio misc. settings | slight | almost none | almost none | for old devices |
     | This module | almost none | almost none | very slight | for LDAC BT earphones and DAC's under $30 |

changelog.md

@@ -1,5 +1,8 @@
 ## Change logs
 
+# v2.0.1
+* Lowered the cut-off freq. a little bit more to tune for recent custom ROM's
+
 # v2.0.0
 * Changed the default target sampling rate from 44.1 kHz to 48 kHz because YTM recently changed its streaming format from AAC (141; 44.1 kHz & 256 kbps stereo) to Opus (774; 48 kHz & 256 kbps vbr stereo), Am@zon music had already changed its SD format from AAC (44.1 kHz & 256 kbps stereo) to Opus (48 kHz & 192 kbps vbr stereo) and YT had adopted Opus (251; 48 kHz & 160 kbps vbr stereo); Though this change affects very little for 44.1 kHz tracks (of which cut-off changes 20 kHz to 19 kHz)
 * Note that Opus encoders enforce low-pass filtering (cut-off: 20 kHz), but their decoders output ultra sonic noise by noise-shaping dithering when 16 bit depth outputting

module.prop

@@ -1,6 +1,6 @@
 id=resampling-for-cheapies
 name=Resampling for cheapies
-version=v2.0.0
-versionCode=2000
+version=v2.0.1
+versionCode=2001
 author=zyhk
 description=For avoiding "cheapie sound" distortion like a thin veiling smokescreen specific to LDAC Bluetooth earphones and DAC's under $30 (probably), this module sets near ideal re-sampling which involves special digital filtering at the system-wide mixer.

service.sh

@@ -58,23 +58,23 @@ function setResamplingParameters()
     resetprop ro.audio.resampler.psd.halflength 520
 
     #  If you feel your LDAC earphones or "cheapie" DAC wouldn't become to sound well or loses mellowness at all, 
-    #  try replacing "85" (below)  with "86" or "87" for appropriately cutting off ultrasonic noise causing intermodulation
+    #  try replacing "84" (below)  with "83", "85" or "86" for appropriately cutting off ultrasonic noise causing intermodulation
     #
-    resetprop ro.audio.resampler.psd.cutoff_percent 85
+    resetprop ro.audio.resampler.psd.cutoff_percent 84
 
     #  Uncomment the following resetprop lines if you intend to replay only 44.1 kHz & 16 and 24 bit tracks; 
     #  If you feel your LDAC earphones or "cheapie" DAC wouldn't become to sound well or loses mellowness at all, 
-    #  try replacing "93" (below)  with "94" or "95"  for appropriately cutting off ultrasonic noise causing intermodulation
+    #  try replacing "92" (below)  with "91", "93" or "94"  for appropriately cutting off ultrasonic noise causing intermodulation
     #
     #resetprop ro.audio.resampler.psd.stopband 179
-    #resetprop ro.audio.resampler.psd.cutoff_percent 93
+    #resetprop ro.audio.resampler.psd.cutoff_percent 92
 
     #  Uncomment the following resetprop lines if you intend to replay only 96 kHz & 24 bit Hires. tracks.
     #  If you feel your LDAC earphones or "cheapie" DAC wouldn't become to sound well, 
-    #  try replacing "43" (below)  with "44" for appropriately cutting off ultrasonic noise causing intermodulation
+    #  try replacing "42" (below)  with "43" for appropriately cutting off ultrasonic noise causing intermodulation
     #
     #resetprop ro.audio.resampler.psd.enable_at_samplerate 96000
-    #resetprop ro.audio.resampler.psd.cutoff_percent 43
+    #resetprop ro.audio.resampler.psd.cutoff_percent 42
 
     reloadAudioserver
 }