如何修改实时文件流 [英] How to modify a live file stream

问题描述

我有一个树莓派将音频发送到我的桌面，然后我在它上面运行了 Pocketsphinx.问题是文件很快就变得太大了.我想基本上清空文件，保持其格式，并让管道仍然写入它.这可能吗?

I have a raspberry pi sending audio to my desktop, I then run pocketsphinx on it. The problem is the file quickly becomes too big. I would like to basically empty the file, keep its formatting, and have the pipe still write to it. Is this possible?

我现在拥有的，

arecord -D plughw:1,0 -f S16_LE -r 16000 | ssh -C mingram@192.168.86.101 sox - pipe.wav

和间隔，

pocketsphinx_continuous -hmm /usr/local/share/pocketsphinx/model/en-us/en-us -dict ~/4568.dic -lm ~/4568.lm -infile ~/pipe.wav > ~/ButlerAssistant/newWords.log

我试着做一个 cat baseFormatFile.wav >>pipe.wav 在一个间隔上，但它似乎并没有真正覆盖它.

I tried to do a cat baseFormatFile.wav >> pipe.wav on an interval but it didn't appear to actually overwrite it.

我的意思是尝试做 cat baseFormatFile.wav >pipe.wav 我不想附加文件.

I meant tried to do cat baseFormatFile.wav > pipe.wav I don't want to append the file.

编辑 #2:我做了一个 sox pipe.wav pipe.wav trim 0 10 但随后管道停止写入.我也试过 sox baseFormatFile.wav pipe.wav trim 0 02 但除非管道停止，否则它不会改变它.

Edit #2: I did a sox pipe.wav pipe.wav trim 0 10 But then the pipe stops writing to it. I also tried sox baseFormatFile.wav pipe.wav trim 0 02 but it wouldn't change it unless the pipe was stopped.

最终我认为 cat baseFormatFile.wav >pipe.wav 实际上有效，只是没有出现在 ls -l 中.它减少了计算时间并且不显示旧结果，因此我将其标记为成功.

Final edit: I think cat baseFormatFile.wav > pipe.wav actually worked, it just wasn't showing up in ls -l. It is reducing computation time and not showing old results so I mark it a success.

推荐答案

我觉得 cat baseFormatFile.wav >pipe.wav 实际上有效，只是没有出现在 ls -l 中.它减少了计算时间并且不会显示旧的结果，所以我将其标记为成功.

I think cat baseFormatFile.wav > pipe.wav actually worked, it just wasn't showing up in ls -l. It is reducing computation time and not showing old results so I mark it a success.

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