Update README.md

drone1 · Feb 19, 2017 · 5445d8a · 5445d8a
1 parent 282e539
commit 5445d8a
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -1,6 +1,7 @@
 # Node wave
 > Render audio waveform like SoundCloud on backend
-
+Now we have 2 version 0.0.4 and 0.0.3
+0.0.4:  I used `ffmpeg`, It take less cpu and memory than version 0.0.3 but you need to install `ffmpeg`
 ## Install
 
 ```
@@ -23,6 +24,7 @@ Waveform('< mp3 link >', options, function(err , buffer) {
 
 ## Requirement
  This module base on `web-audio-api` and `canvas` modules.
+ You need to install `Cairo`. Follow install `canvas` instructor https://www.npmjs.com/package/canvas
 
 ## Attribute