commit d06329a7259f126987355045281cbdf292258710
Author: sigil-03 <sigil@glyphs.tech>
Date:   Sun Jul 27 10:52:45 2025 -0600

    repo initialization + commit notes

diff --git a/notes.md b/notes.md
new file mode 100644
index 0000000..61faa61
--- /dev/null
+++ b/notes.md
@@ -0,0 +1,8 @@
+# ADPCM CODEC
+ref: 1, 2
+
+
+# RESOURCES
+1. [wikipedia: adpcm](https://en.wikipedia.org/wiki/Adaptive_differential_pulse-code_modulation)
+2. [st-micro: an3413](https://www.st.com/resource/en/application_note/an3143-audio-software-codec-for-the-stm8s-stmicroelectronics.pdf)
+3. [st-micro: an4453](file:///home/lex/Downloads/an4453-implementing-the-adpcm-algorithm-in-stm32l1xx-microcontrollers-stmicroelectronics.pdf)