Frank Bösing
d7be8bea70
PROGMEM->FLASHMEM
vor 4 Jahren
Frank Bösing
33eece1548
add output_pt8211_2
vor 5 Jahren
Frank Bösing
ad7b4f1644
add output_pt8211
vor 5 Jahren
PaulStoffregen
07a305d8bc
Import all of Frank's T4 edits
vor 5 Jahren
PaulStoffregen
8fb976cf20
Include Arduino.h first in all cpp files, for precompiled header speedup
vor 6 Jahren
Frank
94f7f6fbe8
Add a comment for TDA1543
vor 7 Jahren
Frank
897e67228d
Bugfix re: noise when no blocks are available
vor 8 Jahren
Benjamin
246a7f6977
changed defines to be more specific
See conversation https://github.com/PaulStoffregen/Audio/pull/194
vor 8 Jahren
Benjamin
cf013ec88e
move OS-related #defines to .h file; speed improvements
Combine two loops in stereo CIC computation into one for-loop.
Add compiler optimization "unroll-loops" to isr if OS enabled. Speed
improved from 113µs to 65µs per isr call for CIC interpolation filtering
(Measured on Teensy 3.2 96MHz optimized).
vor 8 Jahren
Benjamin
913b4dcede
Remove LED blink in isr
vor 8 Jahren
Benjamin
0db2e23ba1
Add PT8211 w/ experimental 4x oversampling
PT8211 with oversampling and linear interpolation by Frank Bösing.
3 Stage CIC interpolation by Ben Rheinland
vor 8 Jahren