[FFmpeg-user] how to display metadata?

[sean darcy]

I've prepared a speech:

ffmpeg -i "speech_1.wav" -metadata track="1" -metadata title="My Speech" 
-acodec aac -ab 128000 -strict experimental speech_1.aac

which seems to work fine, the track and title show on the console output.

But:

  ffmpeg -i speech.aac
Input #0, aac, from 'speech_1.aac':
   Duration: 00:01:44.95, bitrate: 128 kb/s
     Stream #0.0: Audio: aac, 44100 Hz, stereo, s16, 128 kb/s


I'm having a problem since the speech is in 12 tracks. The player is 
playing 1,10,11,12,2,....

It's probably a player problem, but I'd like to check the metadata 
before bugging the player dev (AudioBook Player on Android).

I tried EasyTag, but got an "MP4 Format Invalid" error.

Thanks,

sean