Is it possible to have a lossless conversion from a wav file
`Stream #0:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1 channels, s32, 1152 kb/s` to a wav file ?

I tried using ffmpeg :
`ffmpeg -y -i KEEP_01.wav -acodec flac output.flac`
but i get this warning :
`Conversion will not be lossless.
Incompatible sample format 's32' for codec 'flac', auto-selecting format 's16'`

I also used sox but i had no warning so i don't know if the conversion was lossless or not.

Also i don't really understand the difference between sample\_format and bits\_per\_sample in my ffprobe output :

`"streams": [
 {
 "index": 0,
 "codec_name": "pcm_s24le",
 "codec_long_name": "PCM signed 24-bit little-endian",
 "codec_type": "audio",
 "codec_time_base": "1/48000",
 "codec_tag_string": "[1][0][0][0]",
 "codec_tag": "0x0001",
 "sample_fmt": "s32",
 "sample_rate": "48000",
 "channels": 1,
 "bits_per_sample": 24,
 "r_frame_rate": "0/0",
 "avg_frame_rate": "0/0",
 "time_base": "1/48000",
 "duration": "0.810667",
 "bit_rate": "1152000"
 }
]`