1.
downloaded many video photos of Gandhiji (.rm format, only VLC or real player able) from the following link. Its very good link.

http://www.mahatmagandhiji.com/ve.html

2. Few other audio speech is found but i am unable to download from this link:
https://www.gandhiheritageportal.org/mahatma-gandhi-speeches-audio


Courtesy:  http://www.mkgandhi.org/audio.htm