> For the complete documentation index, see [llms.txt](https://docs.acrcloud.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.acrcloud.com/tools/fingerprinting-tool.md).

# Audio File Fingerprinting Tool

## Downloads

{% embed url="<https://github.com/acrcloud/acrcloud_extr_tools>" %}

## Usage

```
Usage: ./acr_extr [options] [-i infile]
For Example:
    # ./acr_extr -i inputfile
    # ./acr_extr -i inputfile -o outputfile

Getting help:
   -h      -- print basic options
   -v      -- print vertion

Options:
   -i           input file. 
  
   -o           Output file. If do not have this option, dir of output file is the same with input file.

   -au          If you add this option, it will save the audio data as decoded from input file(formatter: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 8000 Hz). 

                 example: ./acrcloud_extr -au -i inputfile

   --debug      If you add this option, it will print all infomation.
```