我正在尝试将音频传输到 sox，但收到错误“sox 失败格式：‘-’的输入格式错误：未指定采样率”
parec -d alsa_output.pci-0000_00_1b.0.analog-stereo.monitor --rate=16000 --channels=1 | sox -t raw - output.wav silence 1 0.3 0.1% 1 0.3 0.1% : newfile : restart
这是命令的输出
sox FAIL formats: bad input format for `-': sampling rate was not specified
Opening a recording stream with sample specification 's16le 1ch 16000Hz' and channel map 'mono'.
Connection established.
Stream successfully created.
Buffer metrics: maxlength=4194304, fragsize=64000
Using sample spec 's16le 1ch 16000Hz', channel map 'mono'.
Connected to device alsa_output.pci-0000_00_1b.0.analog-stereo.monitor (index: 0, suspended: no).
write() failed: Broken pipe
答案1
原始流不包含任何有关其格式的元信息，因此您必须告诉 sox：
parec ... | sox -t raw -r 16k -e signed -b 16 -c 1 ...