Question

我正在尝试创建一个虚拟麦克风来馈送其他需要音频输入的程序。我正在使用cheerupcharlie在2017年4月提出的解决方案现在处理的方式是一旦写入管道，您必须打开另一个终端会话并从管道读取。然后它将再次写入管道（请参见脚本中的while循环）。我要做的是从主脚本执行python脚本（请参见循环中的注释）。然后返回再次写入管道。当前，它所做的只是在写入管道后挂起（仍在等待从另一个进程读取）

有什么建议吗？

这是脚本

#!/bin/bash

# This script will create a virtual microphone for PulseAudio to use and set it as the default device.

# Load the "module-pipe-source" module to read audio data from a FIFO special file.
rm /home/pi/audiofiles/virtmic
echo "Creating virtual microphone."
pactl load-module module-pipe-source source_name=virtmic file=/home/pi/audiofiles/virtmic format=s16le rate=44100 channels=2

# Set the virtmic as the default source device.
echo "Set the virtual microphone as the default device."
pactl set-default-source virtmic

# Create a file that will set the default source device to virtmic for all PulseAudio client applications.

echo "default-source = virtmic" > /home/pi/.config/pulse/client.conf

# Write the audio file to the named pipe virtmic. This will block until the named pipe is read.
echo "Writing audio file to virtual microphone."
n=1
while (( $n <= 3))
do      
   ffmpeg -re -i testout.wav -f s16le -ar 44100 -ac 2 - > /home/pi/audiofiles/virtmic
   echo "speechrec running"
#   python3 speechrec.py
   n=$(( n+1 ))
done

Linux通过管道将音频文件传输到麦克风输入-已修订

0 个答案: