[Performous-commit] Tapio Vierros : Added a paragraph of documentation about the additional music file feature .

[Tapio V. <aa...@us...>]

Author: Tapio Vierros <tap...@gm...>
Date:   Wed Oct  5 18:12:34 2011 +0300

Added a paragraph of documentation about the additional music file feature.

---

 docs/helpindex.html |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/docs/helpindex.html b/docs/helpindex.html
index fd67e6f..81f67bc 100644
--- a/docs/helpindex.html
+++ b/docs/helpindex.html
@@ -24,6 +24,7 @@
 
 <h3><a name="initialimport">Importing song and lyrics</a></h3>
 <p>The first step is to import a music file for analyzation and lyrics text for generating notes. This can be done e.g. through the import menu. Supported song file formats vary depending on the platform, but at least mp3 and ogg should be ok. Lyrics assume that each phrase is on a line of its own - when the text is imported, a note is generated for each word and a sentence marker is placed at the beginning of each line.</p>
+<p>You can also add an additional music file via the import menu. It will get analyzed and the results are displayed with different colors. The idea is that if you have a music file with both vocals and instruments, plus another karaoke version with just the instruments, you can use the analysis from the additional (karaoke) music to determine which tones belong to the background and are probably not singing.</p>
 
 <h3><a name="timing">Note timing</a></h3>
 <p>The easiest way to get the notes roughly timed is to switch to the <em>Tools</em> tab and start listening to the music. Each time you hear the phrase that is displayed in the tab, hit the <em>Time phrase</em> button (or its hotkey) and the start of the current phrase is placed to that position.</p>