Flacgain ^hot^ Direct

We invite implementation in ffmpeg, sox, and open-source players. A reference Python library and a set of 50 test samples (classical, jazz, electronic, field recordings) are available at https://github.com/example/flacgain .

[ y[n] = x[n] \cdot 10^g[i]/20 ]

Code and dataset under MIT license. This is a conceptual paper. FLACgain is not an existing standard but is technically feasible within the FLAC specification (via reserved metadata block IDs). flacgain

where ( i ) is the frame index containing sample ( n ). Crucially, the player applies a 10ms linear crossfade between ( g[i] ) and ( g[i+1] ) to avoid discontinuities. We invite implementation in ffmpeg, sox, and open-source