Python 3.x 连续无限实时流式音频信号,Python
我有一个简单的问题,当在Python中从音频插孔传输音频信号时,使用pyaudio库如何在选择“停止”程序之前保持音频信号的传输 示例:我们在无限while循环下无限帧的方式 例如:在这个只记录流5秒钟的代码(取自)中,什么样的修改才能达到我的目的Python 3.x 连续无限实时流式音频信号,Python,python-3.x,audio,real-time,pyaudio,Python 3.x,Audio,Real Time,Pyaudio,我有一个简单的问题,当在Python中从音频插孔传输音频信号时,使用pyaudio库如何在选择“停止”程序之前保持音频信号的传输 示例:我们在无限while循环下无限帧的方式 例如:在这个只记录流5秒钟的代码(取自)中,什么样的修改才能达到我的目的 import pyaudio import wave import numpy as np CHUNK = 44100 FORMAT = pyaudio.paInt32 CHANNELS = 2 RATE = 44100 RECORD_SECONDS
import pyaudio
import wave
import numpy as np
CHUNK = 44100
FORMAT = pyaudio.paInt32
CHANNELS = 2
RATE = 44100
RECORD_SECONDS = 5
WAVE_OUTPUT_FILENAME = "output.wav"
p = pyaudio.PyAudio()
stream = p.open(format=FORMAT,
channels=CHANNELS,
rate=RATE,
input=True,
frames_per_buffer=CHUNK)
print("* recording")
frames = []
for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
data = stream.read(CHUNK)
audio_data = np.fromstring(data, dtype=np.int32)
print(data)
print(audio_data)
frames.append(data)
print("* done recording")
stream.stop_stream()
stream.close()
p.terminate()
另外,这个链接()上给出的代码会记录它4-5秒
如果有人能帮我,我会非常感激的 与此同时,我找到了解决办法
import pyaudio
import numpy as np
import pylab
import time
import sys
import matplotlib.pyplot as plt
RATE = 44100
CHUNK = int(RATE/20) # RATE / number of updates per second
def soundplot(stream):
t1=time.time()
data = np.fromstring(stream.read(CHUNK),dtype=np.int16)
print(data)
if __name__=="__main__":
p=pyaudio.PyAudio()
stream=p.open(format=pyaudio.paInt16,channels=1,rate=RATE,input=True,
frames_per_buffer=CHUNK)
for i in range(sys.maxsize**10):
soundplot(stream)
stream.stop_stream()
stream.close()
p.terminate()
这篇文章将以简单而具体的方式帮助你你好,这是我的代码,音频和视频是分开录制的,暂停音频和视频我希望它能帮助你
import cv2
import numpy as np
from datetime import datetime
import gtk
import keyboard
import pyaudio
import wave
import sys
flagrecord=True
#chunk = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 44100
ropen=True
chunk = int(RATE/20)
def show_webcam(flagrecord):
cam = cv2.VideoCapture(0)
fourcc = cv2.VideoWriter_fourcc(*'XVID')
frame_width = int(cam.get(3))
frame_height = int(cam.get(4))
FONT = cv2.FONT_HERSHEY_PLAIN
filename = datetime.now().strftime("%Y-%m-%d_%H.%M.%S") + ".avi"
filenamea = datetime.now().strftime("%Y-%m-%d_%H.%M.%S")
p = pyaudio.PyAudio()
stream = p.open(format = FORMAT,
channels = CHANNELS,
rate = RATE,
input = True,
frames_per_buffer = chunk)
out = cv2.VideoWriter(filename,fourcc, 20, (frame_width,frame_height))
all = []
aux = []
stream.start_stream()
flagaudio=False
while True:
ret_val, img = cam.read()
title = datetime.now().strftime("%Y-%m-%d*%H:%M:%S")
if flagrecord:
img = cv2.flip(img,1)
cv2.putText(img, "REC", (40,40), FONT, 3 , (0,0,255), 3)
cv2.circle(img, (20,20), 10 , (0,0,255), -1)
cv2.rectangle(img, (30,430),(600,480),(0,0,0), -1)
cv2.putText(img, title, (40,470), FONT, 3 , (255,255,255), 2)
cv2.imshow('Grabacion de Audiencias', img)
data = stream.read(chunk)
aux.append(data)
out.write(img)
else:
img = cv2.flip(img,1)
cv2.putText(img, "PAUSE", (40,40), FONT, 3 , (255,0,0), 3)
cv2.circle(img, (20,20), 10 , (255,0,0), -1)
cv2.rectangle(img, (50,430),(570,480),(0,0,0), -1)
cv2.putText(img, "Audiencias En Pausa", (60,470), FONT, 3 , (255,0,0), 2)
cv2.imshow('Grabacion de Audiencias', img)
if flagaudio:
all+=aux
del aux[:]
data= 0
stream.stop_stream()
else:
pass
q=cv2.waitKey(1)
if q == 27:
break
if q == ord('p'):
flagrecord=False
flagaudio = True
if q == ord('c'):
flagrecord=True
flagaudio=False
stream.start_stream()
if q == ord('q'):
break
cam.release()
out.release()
cv2.destroyAllWindows()
stream.close()
p.terminate()
all+=aux
data = ''.join(all)
wf = wave.open(filenamea, 'wb')
wf.setnchannels(CHANNELS)
wf.setsampwidth(p.get_sample_size(FORMAT))
wf.setframerate(RATE)
wf.writeframes(data)
wf.close()
def main():
show_webcam(mirror=True)
if __name__ == '__main__':
main()
你可以看看我的例子。它使用模块,但您可以对PyAudio执行相同的操作。