android


NameError: name 'numpydata' is not defined


I'm trying to stream audio from an android application to a python server, I have both codes here.
The client:
public class MainActivity extends AppCompatActivity {
private Button startButton,stopButton;
public byte[] buffer;
public static DatagramSocket socket;
private int port=4100;
AudioRecord recorder;
private int sampleRate = 44100 ; // 44100 for music
private int channelConfig = AudioFormat.CHANNEL_IN_MONO;
private int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
int minBufSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat);
private boolean status = true;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startButton = (Button) findViewById (R.id.start_button);
stopButton = (Button) findViewById (R.id.stop_button);
startButton.setOnClickListener (startListener);
stopButton.setOnClickListener (stopListener);
}
private final OnClickListener stopListener = new OnClickListener() {
#Override
public void onClick(View arg0) {
status = false;
recorder.release();
Log.d("VS","Recorder released");
}
};
private final OnClickListener startListener = new OnClickListener() {
#Override
public void onClick(View arg0) {
status = true;
startStreaming();
}
};
public void startStreaming() {
Thread streamThread = new Thread(new Runnable() {
#Override
public void run() {
try {
DatagramSocket socket = new DatagramSocket();
Log.d("VS", "Socket Created");
byte[] buffer = new byte[minBufSize];
Log.d("VS","Buffer created of size " + minBufSize);
DatagramPacket packet;
Log.d("VS", "Address retrieved");
final InetAddress destination = InetAddress.getByName("192.168.43.71");
Log.d("VS", "Address retrieved");
recorder = new AudioRecord(MediaRecorder.AudioSource.MIC,sampleRate,channelConfig,audioFormat,minBufSize*10);
Log.d("VS", "Recorder initialized");
recorder.startRecording();
while(status == true) {
//reading data from MIC into buffer
minBufSize = recorder.read(buffer, 0, buffer.length);
//putting buffer in the packet
packet = new DatagramPacket (buffer,buffer.length,destination,port);
socket.send(packet);
System.out.println("MinBufferSize: " +minBufSize);
}
} catch(UnknownHostException e) {
Log.e("VS", "UnknownHostException",e);
} catch (IOException e) {
e.printStackTrace();
Log.e("VS", ""+ e);
}
}
});
streamThread.start();
}
}
The python server:
import pyaudio
import socket
from threading import Thread
import numpy as np
from matplotlib import pyplot as plt
frames = []
def udpStream(CHUNK):
udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
udp.bind(("192.165.43.72", 4100))
while True:
# soundData, addr = udp.recvfrom(CHUNK)
soundData, addr = udp.recvfrom(CHUNK * CHANNELS * 2)
frames.append(soundData)
print (numpydata)
plt.plot(numpydata)
plt.show()
udp.close()
def play(stream, CHUNK):
BUFFER = 10
while True:
if len(frames) == BUFFER:
while True:
try:
stream.write(frames.pop(0), CHUNK)
except:
pass
if __name__ == "__main__":
FORMAT = pyaudio.paInt16
CHUNK = 1024
CHANNELS = 2
RATE = 44100
p = pyaudio.PyAudio()
stream = p.open(format=FORMAT,
channels = CHANNELS,
rate = RATE,
output = True,
input=True,
frames_per_buffer = CHUNK,
)
Ts = Thread(target = udpStream, args=(CHUNK,))
Tp = Thread(target = play, args=(stream, CHUNK,))
Ts.setDaemon(True)
Tp.setDaemon(True)
Ts.start()
Tp.start()
Ts.join()
Tp.join()
This is not my code, I found it here Noise in Audio Streaming from Android to PC using UDP with Python Server.
I'm not getting any errors on the client, but when I try to run the python server (after installing pyaudio, numpy and matplotlib), I get this error and I don't know why.
Exception in thread Thread-1:
Traceback (most recent call last):
File "C:\Python34\lib\threading.py", line 920, in _bootstrap_inner
self.run()
File "C:\Python34\lib\threading.py", line 868, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\Eric\Desktop\Servidor\Servidor.py", line 18, in udpStream
print (numpydata)
NameError: name 'numpydata' is not defined
I don't know how to fix this, could you help me please?
Thank you all!

Related Links

Facebook SDK inside library project throws Dalvik error
GraphView not refreshing
Create txt file, write and read from it Android
Calling javascript function from android native code
ListFragment setOnItemClickListener not working
Exception while decompiling apk
Android ArrayAdapter, how to get the collection given to its constructor
ionic platform add android error in windows 7
Wrong warning in android studio
Android architecture - Where should a model live across activities?
How to pause and resume Chronometer in Notification Panel?
android how to using sweet-alert-dialog on Eclipse
how run Background Service after i destroy my application?
Dagger using dynamic data
How to solve dynamic Text view creation not visible in android activity?
adding multiple layouts to horizontal swipe view

Categories

HOME
google-app-engine
porting
deep-learning
interface
sh
pearson-correlation
jquery-ui
modal-dialog
computer-science
google-schemas
openbugs
video-editing
jquery-ias
interpreter
google-api-client
mount
definitelytyped
inversion-of-control
datastax-enterprise-graph
autodesk-designautomation
mobx
sql-server-2000
simplecv
sammy.js
sharepoint-workflow
apic
graphhopper
xdocreport
diacritics
cin
spring-mvc-test
watchface
vmware-fusion
postgresql-8.4
apollostack
avcapturedevice
uiimage
strftime
rfc3339
getchar
dotnet-httpclient
wcftestclient
user-defined-fields
manova
git-flow
flac
cpu-cache
cd-burning
branch-prediction
pure-css
redistributable
actor-platform
async.js
neon
ng-grid
hclust
qiime
freepbx
kango-framework
qbxml
maybe
phonertc
pax-exam
wso2greg
rdflib
canvg
entity-framework-4.3
angular-gettext
appserver
mdichild
file-not-found
fpdi
vbe
cfcache
gae-quotas
multiautocompletetextview
kogrid
cnf
merb
scmmanager
superscrollorama
windows-98
qi4j
pstack
lambdaj
fitbounds
floating-point-exceptions
convention
role
htdocs
mbeans
easyb
zend-rest
sifr
lalr
wordprocessingml
wysiwym
todos
linfu-dynamicproxy

Resources

Mobile Apps Dev
Database Users
javascript
java
csharp
php
android
MS Developer
developer works
python
ios
c
html
jquery
RDBMS discuss
Cloud Virtualization
Database Dev&Adm
javascript
java
csharp
php
python
android
jquery
ruby
ios
html
Mobile App
Mobile App
Mobile App