在 Raspberry Pi（Python 和套接字）上播放 .wav 文件时出现问题

Question

所以我的代码是通过引用 and this post 来构建的，用于 wave 文件发送，这似乎是关于该主题的最流行的 Whosebug 帖子，但我似乎无法解决问题。所以，我的代码可以发送音频文件，但在 Pi 上播放时只有一半时间有效。首先，一些细节：

我正在尝试将在我的笔记本电脑上生成的 .wav 音频文件发送到 Raspberry Pi 运行最新的默认设置 Raspberry Pi OS，然后通过连接的 USB 扬声器播放音频。

我发现它实际上是我用来播放音频的代码。有时它播放整个文件，但有时它只播放四分之一或最后几秒。我该如何解决这个问题？

我尝试了多种不同的音频播放器，例如 pygame、pyttsx3 和下面显示的播放器，这段代码在所有播放器中效果最好，即使有错误。

这是我的代码：

注意：服务器在树莓派上，我的电脑作为客户端发送.wav到服务器

服务器：

def audio_reciever(): # this is the audio receiver
port = 65432                  # Reserve a port for your service.
s = socket.socket()             # Create a socket object
host = 'this is the pi ip'
chunk = 1024
# Get local machine name
s.bind((host, port))
f = open('voice.wav', 'w+b')
# Bind to the port
s.listen()                     # Now wait for client connection.
while True:
    conn, addr = s.accept()     # Establish connection with client.
    l = conn.recv(1024)
    while (l):
       f.write(l)
       l = conn.recv(1024)
    f.close()
    conn.send(b'Audio_Recieved')
    break
conn.close()
return

Pi 的音频播放器：

def audio_player():
  chunk = 1024
  wf = wave.open('voice.wav', 'rb')
  # create an audio object
  p = pyaudio.PyAudio()
  # open stream based on the wave object which has been input.
  stream = p.open(format =
                  p.get_format_from_width(wf.getsampwidth()),
                  channels = wf.getnchannels(),
                  rate = wf.getframerate(),
                  output = True)
  # read data (based on the chunk size)
  data = wf.readframes(chunk)
  # play stream (looping from beginning of file to the end)
  while data != b'':
      # writing to the stream is what *actually* plays the sound.
      stream.write(data)
      data = wf.readframes(chunk)
  stream.stop_stream()    # "Stop Audio Recording
  stream.close()          # "Close Audio Recording
  p.terminate()           # "Audio System Close
  wf.close()
  return

客户：

def audio_sender(self,command):
command = "command goes here"
print(command)
engine.save_to_file(command, 'voice.wav')
engine.runAndWait()
engine.stop()

arr = array('B') # create binary array to hold the wave file
result = stat("voice.wav")  # sample file is in the same folder
f = open("voice.wav", 'rb')
arr.fromfile(f, result.st_size) # using file size as the array length
HOST = 'this is the pi ip'
PORT = 65432
print("actually sending")
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
    s.connect((HOST, PORT))
    s.send(arr)
    print('Finished sending...')
    s.close()
f.close()
os.remove('voice.wav')
print('done.')

如果您能帮助我弄清楚为什么它有时会中断，我将不胜感激，因为我需要这段代码每次都能按预期工作，因为需要为个人项目重复调用这段代码。还有，有什么办法可以让小派播放音频文件的速度稍微慢一点吗？

感谢您的宝贵时间。

Answer 1

我最终使用 PyGame 模块来播放音频。这是代码：

def playSound(filename):
  pygame.mixer.music.load(filename)
  pygame.mixer.music.play()
def audio_player():
  pygame.init()
  playSound('voice.wav')
  while pygame.mixer.music.get_busy() == True:
      continue
  return

在 Raspberry Pi（Python 和套接字）上播放 .wav 文件时出现问题

Having issues playing a .wav file on Raspberry Pi (Python & Socket)

python

sockets

audio

tcp

wav