updated readme

README.md

@@ -1,2 +1,24 @@
-# ComfyUI_SingalProcessing
-Signal Processing Nodes For ComfyUI
+# ComfyUI Signal Processing
+
+This repo contains 3 nodes for [ComfyUI](https://github.com/comfyanonymous/ComfyUI) that allows for audio filtering
+
+## Nodes
+
+### SignalProcessingPaulStretch :
+This node lets you stretch audio to about 100x it's original speed whil mainting pitch. it's great for making pad sounds. It's a port of 
+fantastic algorithm of by by Nasca Octavian PAUL, his repository here : https://github.com/paulnasca/paulstretch_python
+- **audio**: input audio
+- **stretch_factor**: the stretch factor from 0 to 100
+- **window_size_seconds**: window length ins seconds. higher value create smoother stretching effect.
+
+### SignalProcessingFilter :
+This node lets you stretch audio to about 100x it's original speed whil mainting pitch. it's great for making pad sounds:
+- **audio**: input audio
+- **cutoff**: filter cutoff
+- **filter_type**: filter type - "lowpass", "highpass", "bandpass", "bandstop"
+- **q_factor**: weidth of the filter
+
+### SignalProcessingLoadAudio :
+This node lets you stretch audio to about 100x it's original speed whil mainting pitch. it's great for making pad sounds:
+- **audio_file**: input audio file
+- **seek_seconds**: when to start audio from