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https://github.com/xiongyihui/speexdsp-python
Speex Echo Canceller Python Library
https://github.com/xiongyihui/speexdsp-python
aec echo-cancellation python speex
Last synced: 11 days ago
JSON representation
Speex Echo Canceller Python Library
- Host: GitHub
- URL: https://github.com/xiongyihui/speexdsp-python
- Owner: xiongyihui
- Created: 2017-04-21T10:42:05.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2018-07-17T05:55:48.000Z (over 6 years ago)
- Last Synced: 2024-10-16T02:24:37.290Z (23 days ago)
- Topics: aec, echo-cancellation, python, speex
- Language: Python
- Homepage:
- Size: 11.7 KB
- Stars: 114
- Watchers: 6
- Forks: 29
- Open Issues: 4
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
speexdsp for python
===================
[](https://travis-ci.org/xiongyihui/speexdsp-python)
## Requirements
+ swig
+ compile toolchain
+ python
+ libspeexdsp-dev
## Build
There are two ways to build the package.
1. using setup.py
```
sudo apt install libspeexdsp-dev
git clone https://github.com/xiongyihui/speexdsp-python.git
cd speexdsp-python
python setup.py install
```
2. using Makefile
```
git clone https://github.com/xiongyihui/speexdsp-python.git
cd speexdsp-python/src
make
```
## Get started
```python
"""Acoustic Echo Cancellation for wav files."""
import wave
import sys
from speexdsp import EchoCanceller
if len(sys.argv) < 4:
print('Usage: {} near.wav far.wav out.wav'.format(sys.argv[0]))
sys.exit(1)
frame_size = 256
near = wave.open(sys.argv[1], 'rb')
far = wave.open(sys.argv[2], 'rb')
if near.getnchannels() > 1 or far.getnchannels() > 1:
print('Only support mono channel')
sys.exit(2)
out = wave.open(sys.argv[3], 'wb')
out.setnchannels(near.getnchannels())
out.setsampwidth(near.getsampwidth())
out.setframerate(near.getframerate())
print('near - rate: {}, channels: {}, length: {}'.format(
near.getframerate(),
near.getnchannels(),
near.getnframes() / near.getframerate()))
print('far - rate: {}, channels: {}'.format(far.getframerate(), far.getnchannels()))
echo_canceller = EchoCanceller.create(frame_size, 2048, near.getframerate())
in_data_len = frame_size
in_data_bytes = frame_size * 2
out_data_len = frame_size
out_data_bytes = frame_size * 2
while True:
in_data = near.readframes(in_data_len)
out_data = far.readframes(out_data_len)
if len(in_data) != in_data_bytes or len(out_data) != out_data_bytes:
break
in_data = echo_canceller.process(in_data, out_data)
out.writeframes(in_data)
near.close()
far.close()
out.close()
```