No module named speexdsp

I am using ReSpeaker 6-Mic with Raspberrypi 4B,according to the WIKI,when I run "python "(~/voice-engine/examples/respeaker_6mic_array_for_pi/),the following problems arise:

Traceback (most recent call last):
File “”, line 11, in
from import EC
File “/home/pi/.local/lib/python2.7/site-packages/voice_engine/”, line 17, in
from speexdsp import EchoCanceller
File “build/bdist.linux-armv7l/egg/speexdsp/”, line 3, in
ImportError: No module named speexdsp

I try to re-install speexdsp module,but it doesn’t work,the above error still appears.
sudo apt install libspeexdsp-dev
git clone
cd speexdsp-python
python install

Does anyone encounter this problem?How to solve it?