我想使用pyaudio和wave lib录制和播放我的声音,但我不知道怎么做,因为wave lib需要一个文件的路径,即使我试图将它设置为带有列表的变量几秒前记录的字节,仍然无法工作因为我不能使用'read'作为列表。有人有点想法吗?我想做一个像KORG一样的looper等等
我希望在停止录制后立即播放,就像真正的looper一样,不会将记录保存为文件。
有我的代码(Python 3.4):
def record(self): #recording a voice
#var for bytes from recording
self.stream = self.player.open(format = self.FORMAT,
channels = self.CHANNELS,
rate = self.RATE,
input = True,
frames_per_buffer = self.CHUNK)
print("Recording")
self.frames = [] #byte list
#recoring for a few seconds (5sec at this moment)
for i in range(0, int(self.RATE / self.CHUNK * self.RECORD_SECONDS)):
self.data = self.stream.read(self.CHUNK) #sing stream do data var
self.frames.append(self.data) #add bytes to the end of a list
print("Stop recording")
self.stopRecording()
def stopRecording(self):
self.stream.stop_stream()
self.stream.close()
print("Recording has been stopped")
self.play()
def play(self): #playing a record
print("Playing")
f = wave.open(self.frames,"rb")
#read data
data = f.readframes(CHUNK)
#play stream
while data != '':
self.stream.write(data)
data = f.readframes(CHUNK)
self.stopPlaying()
答案 0 :(得分:1)
停止记录后,您需要加入附加的数据,使用data = ''.join(self.frames)
,最后构建一个循环(for,while)来流式传输所有字节列表,以下是我的做法:
import pyaudio
chunk = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 41000
RECORD_SECONDS = 5
p = pyaudio.PyAudio()
stream = p.open(format = FORMAT,
channels = CHANNELS,
rate = RATE,
input = True,
output = True,
frames_per_buffer = chunk)
print ("***Recording***")
all = []
for i in range(0, RATE / chunk * RECORD_SECONDS):
data = stream.read(chunk)
all.append(data)
print("***Stop recording***")
print ("***START PLAY***")
data = ''.join(all)
for i in range(0, len(data), chunk):
stream.write(data[i:i+chunk])