MP3 專利全數過期

看到有人提到,查了維基百科上面的 MP3 條目,看起來在 4/16 就全部都過期了:

The basic MP3 decoding and encoding technology is patent-free in the European Union, all patents having expired there by 2012 at the latest. In the United States, the technology became substantially patent-free on 16 April 2017 (see below).

If the longest-running patent mentioned in the aforementioned references is taken as a measure, then the MP3 technology became patent-free in the United States on 16 April 2017 when U.S. Patent 6,009,399, held by and administered by Technicolor, expired.

The three exceptions are: U.S. Patent 5,878,080, expired February 2017; U.S. Patent 5,850,456, expired February 2017; and U.S. Patent 5,960,037, expired 9 April 2017.


Nexmo 的 Voice API 可以吃 WAV 與 MP3 格式了...

剛剛才看到 Nexmo 的公告,Nexmo 的 Voice API 以往只能吃文字,然後程式會發音,但現在則可以吃 WAV 或 MP3 格式的檔案直接播放了:「Nexmo’s Voice API Now Supports .wav and .mp3 Format」。

連 API 的範例都直接給出來,好像很好玩的樣子... XD

然後仔細看文件才發現 Speech 的部份是支援中文的!代碼 zh-cn 的男/女聲發音!