python-3.x - 有没有办法在 Azure Notebooks/Google Collab 上输入麦克风？

Question

我一直在尝试使用 Google Collab 和 Azure Notebook 上的 Python Notebooks 构建语音到文本的应用程序。我面临的问题是基于云的 VM 没有用于使用我的麦克风的音频端口。因此，我什至无法安装 PyAudio 包。有什么建议么？

Answer 1

这是在 Colab 中记录和保存文件的代码。

from IPython.display import Javascript
from google.colab import output
from base64 import b64decode

RECORD = """
const sleep  = time => new Promise(resolve => setTimeout(resolve, time))
const b2text = blob => new Promise(resolve => {
  const reader = new FileReader()
  reader.onloadend = e => resolve(e.srcElement.result)
  reader.readAsDataURL(blob)
})
var record = time => new Promise(async resolve => {
  stream = await navigator.mediaDevices.getUserMedia({ audio: true })
  recorder = new MediaRecorder(stream)
  chunks = []
  recorder.ondataavailable = e => chunks.push(e.data)
  recorder.start()
  await sleep(time)
  recorder.onstop = async ()=>{
    blob = new Blob(chunks)
    text = await b2text(blob)
    resolve(text)
  }
  recorder.stop()
})
"""

def record(sec=3):
  display(Javascript(RECORD))
  s = output.eval_js('record(%d)' % (sec*1000))
  b = b64decode(s.split(',')[1])
  with open('audio.wav','wb') as f:
    f.write(b)
  return 'audio.wav'