When will SpeakGoodChinese run on mobile phones and tablets?

[Rob van Son]

When will SpeakGoodChinese run on mobile phones and tablets?

The Beta version is out: SpeakGoodChinese3

This version runs on Google Chrome, Firefox, Opera, likely on MS Edge and assorted other (Webkit) browsers. On Android, it works on the Google Android Browser. Firefox on Android behaves "weird" and might not be usable.

To use SGC3 on Android you must use an external microphone. Without a microphone, recording will most likely not work.

SGC3 can be used offline (without internet connection). Make it a bookmark and the browser will store the application locally.

Warning: This is a beta release. The recognizer is still fragile and might not work for everyone.

The short answer:
 With some luck, after this summer (2016). I am working on a Webapp now. You can follow our progress on GitHub at:

SpeakGoodChinese3

Note that there is no tone recognition yet. What you see are "test" responses.

The slightly longer answer:
Early this year (2016), I bit the bullet and started porting SpeakGoodChinese2 to a pure local webapp, SpeakGoodChinese3. The target platform is Google Chrome, but it should work on all browsers that support the WebRTC standard. I would like to stress the use of the word should in the previous sentence. It works on PCs (Mac, Windows, Linux) and recent Android devices (versions 5 and 6). Apple Safari and iOS browsers do not support WebRTC at the moment, so no SGC3.

The missing piece currently is tone recognition. Currently tone recognition does not work at all. David Weenink (of Praat) has started to work on tone detection (pitch tracking). For the technical inclined, we still need to port Praat autocorrelation pitch tracking and dynamic time warping to javascript.