Okay, thank you for the explanation.
So here I have my to batch-files. For CD to ALAC only, without resampling and for Vinyl 24 Bit to 16 Bit.
16 Bit:
FOR %%A IN (*.flac) DO ffmpeg -i "%%A" -map_metadata -1 -acodec alac "%%A.m4a" 2>> ffmpeg.log
24 Bit:
FOR %%A IN (*.flac) DO ffmpeg -i "%%A" -map_metadata -1 -af "aresample=44100:resampler=soxr:precision=33:osf=s16:dither_method=shibata" -acodec alac "%%A.m4a" 2>> ffmpeg.log
(-map_metadata -1 because I want to clean tags completly with TuneUp.)
16 Bit Input:
Audio: FLAC (framed) 44100Hz stereo 1411kbps [A: flac, 44100 Hz, stereo, s16]
16 Bit Output
Audio: ALAC 44100Hz stereo 1059kbps [A: SoundHandler (alac, 44100 Hz, stereo, s16, 1059 kb/s)]
24 Bit Input:
Audio: FLAC (framed) 96000Hz stereo 4608kbps [A: flac, 96000 Hz, stereo, s24]
24 Bit Output
Audio: ALAC 44100Hz stereo 811kbps [A: SoundHandler (alac, 44100 Hz, stereo, s16, 811 kb/s)]
Why are the 16 Bit Outputs always much higher bitrate than the 24 Bit Outputs?
From the log-file:
What does the 128 kb/s mean?
Stream #0:0: Audio: alac (alac / 0x63616C61), 44100 Hz, stereo, s16p, 128 kb/s
And what is that overhead?
overhead: 0.044341%
I will test the files for clicks.
Hopefully there are none.
Thank you for your help.