def record_micro():
"""
产生流（mac上麦克风读取音频流，需要先brew install portaudio）
:return:
"""
client = AsrClient(url,
port,
None,
enable_flush_data,
log_level=log_level,
product_id=product_id,
sample_rate=sample_rate,
user_name=user_name,
password=password)
NUM_SAMPLES = 2560 # pyaudio内置缓冲大小
SAMPLING_RATE = 8000 # 取样频率
pa = PyAudio()
stream = pa.open(format=paInt16,
channels=1,
rate=SAMPLING_RATE,
input=True,
frames_per_buffer=NUM_SAMPLES)
# yield stream
while True:
yield client.generate_stream_request(stream.read(NUM_SAMPLES))
def read_streaming_from_url():
"""
读取url上的流
:return:
"""
client = AsrClient(url,
port,
product_id,
enable_flush_data,
log_level=log_level,
user_name=user_name,
password=password)
data = urllib2.urlopen(audio_url)
while True:
yield client.generate_stream_request(data.read(size=2560))
def general_fifo_stream():
"""
读取管道数据
1.新建管道：mkfifo pipe.wav
2.获取流存入管道：ffmpeg -i "http://path/of/video/stream" -vn -acodec pcm_s16le -ac 1 -ar 8000 -f wav pipe:1 > pipe.wav
:return:
"""
client = AsrClient(url,
port,
product_id,
enable_flush_data,
log_level=log_level,
send_per_seconds=0.16,
user_name=user_name,
password=password)
rf = os.open("/Users/xiashuai01/TranFile/tem/pipe.wav", os.O_RDONLY)
while True:
stream = os.read(rf, 320)
yield client.generate_stream_request(stream)
def generate_file_stream():
"""
产生流（本地音频流）
:return:
"""
client = AsrClient(url,
port,
product_id,
enable_flush_data,
log_level=log_level,
send_per_seconds=0.16,
user_name=user_name,
password=password)
file_path = "/Users/xiashuai01/TranFile/tem/3.wav"
if not os.path.exists(file_path):
logging.info("%s file is not exist, please check it!", file_path)
os._exit(-1)
file = open(file_path, "r")
content = file.read(320)
while True:
yield client.generate_stream_request(content)
content = file.read(320)
