KUPEPO II

LICENSE INFORMATION — ライセンス情報
KUPEPO2.EXE — License Information
lamejsLGPL-3.0
https://github.com/zhuker/lamejs
MP3エンコードに使用しているJavaScriptライブラリです。LAME MP3エンコーダーのJavaScriptポートであり、ブラウザ上でのMP3ファイル生成を実現しています。
GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007

Copyright (C) 2007 Free Software Foundation, Inc. 

Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.

This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.

0. Additional Definitions.

As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the
GNU General Public License.

"The Library" refers to a covered work governed by this License, other
than an Application or a Combined Work as defined below.

A "Combined Work" is a work produced by combining or linking an
Application with the Library. The particular version of the Library
with which the Combined Work was made is also called the "Linked
Version".

The full text of LGPL-3.0 is available at:
https://www.gnu.org/licenses/lgpl-3.0.html
LAME MP3 EncoderLGPL
https://lame.sourceforge.io/
lamejsの元となったLAME MP3エンコーダーエンジンです。LGPLライセンスの下で配布されています。「LAME」はLAMEプロジェクトの商標です。
Web Audio APIW3C標準
https://www.w3.org/TR/webaudio/
音声処理(フィルタリング、ピッチシフト、リングモジュレーション等)にはブラウザ標準のWeb Audio APIを使用しています。