Sample command output

gistfile1.txt

(.venv) ravik@STING:~/src_git/karaoke_extractor$ karaoke-extract "superman.flac" --outdir outputs
Using device for Demucs: cpu
Temp workspace: /tmp/karaoke_extract_3um718ro
1) Converting input -> WAV via ffmpeg...
>> /usr/bin/ffmpeg -y -vn -i /home/ravik/src_git/karaoke_extractor/superman.flac -ac 2 -ar 44100 /tmp/karaoke_extract_3um718ro/superman.wav
ffmpeg version 7.1.2 Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 15 (GCC)
  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wno-error=incompatible-pointer-types -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer ' --extra-ldflags='-Wl,-z,relro -Wl,--as-needed -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-hardened-ld-errors -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes ' --disable-htmlpages --disable-static --disable-stripping --enable-pic --enable-shared --enable-gpl --enable-version3 --enable-amf --enable-avcodec --enable-avdevice --enable-avfilter --enable-avformat --enable-alsa --enable-bzlib --enable-chromaprint --disable-cuda-nvcc --enable-cuvid --disable-decklink --enable-frei0r --enable-gcrypt --enable-gmp --enable-gnutls --enable-gray --enable-iconv --enable-ladspa --enable-lcms2 --enable-libaom --enable-libaribb24 --enable-libaribcaption --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --disable-libdavs2 --enable-libdc1394 --enable-libdvdnav --enable-libdvdread --enable-libfdk-aac --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libharfbuzz --enable-libgsm --enable-libiec61883 --enable-libilbc --enable-libjack --enable-libjxl --enable-libklvanc --disable-liblensfun --disable-liblcevc-dec --enable-liblc3 --enable-libmodplug --enable-libmp3lame --enable-libmysofa --disable-libnpp --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-libopencv --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-libqrencode --disable-libquirc --enable-librabbitmq --enable-librav1e --enable-librist --enable-librsvg --enable-librubberband --enable-libshaderc --disable-libshine --enable-libsmbclient --enable-libsnappy --enable-libsvtav1 --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --disable-libtensorflow --enable-libtesseract --enable-libtheora --disable-libtorch --disable-libuavs3d --enable-libtwolame --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --disable-libxavs2 --disable-libxavs --enable-libxcb --enable-libxcb-shape --enable-libxcb-shm --enable-libxcb-xfixes --enable-libxeveb --enable-libxevdb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lto --enable-lv2 --enable-lzma --enable-manpages --enable-nvdec --enable-nvenc --enable-openal --disable-openssl --enable-postproc --enable-pthreads --enable-sdl2 --enable-shared --enable-swresample --enable-swscale --enable-v4l2-m2m --enable-vaapi --enable-vapoursynth --enable-vdpau --enable-vulkan --enable-xlib --enable-zlib --enable-muxers --enable-demuxers --enable-hwaccels --disable-encoders --disable-decoders --disable-decoder='h264,hevc,vc1,vvc' --enable-encoder=',a64multi,a64multi5,aac,libfdk_aac,ac3,adpcm_adx,adpcm_argo,adpcm_g722,adpcm_g726,adpcm_g726le,adpcm_ima_alp,adpcm_ima_amv,adpcm_ima_apm,adpcm_ima_qt,adpcm_ima_ssi,adpcm_ima_wav,adpcm_ima_ws,adpcm_ms,adpcm_swf,adpcm_yamaha,alac,alias_pix,amv,anull,apng,ass,asv1,asv2,av1_amf,av1_nvenc,av1_qsv,av1_vaapi,bitpacked,bmp,cinepak,cljr,dca,dfpwm,dnxhd,dnxhr,dpx,dvbsub,dvdsub,dvvideo,exr,ffv1,ffvhuff,flac,flashsv,flashsv2,flv,g723_1,gif,h261,h263,h263_v4l2m2m,h263p,h264_amf,h264_nvenc,h264_qsv,h264_v4l2m2m,h264_vaapi,hap,hdr,hevc_amf,hevc_nvenc,hevc_qsv,hevc_v4l2m2m,hevc_vaapi,huffyuv,ilbc,jpeg2000,jpegls,libaom,libaom_av1,libcodec2,libgsm,libgsm_ms,libilbc,libjxl,liblc3,libmp3lame,libopencore_amrnb,libopenh264,libopenjpeg,libopus,librav1e,libspeex,libsvtav1,libtheora,libtwolame,libvo_amrwbenc,libvorbis,libvpx_vp8,libvpx_vp9,libwebp,libwebp_anim,libxeve,libxvid,mjpeg,mjpeg_qsv,mjpeg_vaapi,mlp,mp2,mp2fixed,mpeg1video,mpeg2_qsv,mpeg2_vaapi,mpeg2video,mpeg4,mpeg4_v4l2m2m,msmpeg4v2,msmpeg4v3,msvideo1,nellymoser,opus,pam,pbm,pcm_alaw,pcm_f32be,pcm_f32le,pcm_f64be,pcm_f64le,pcm_mulaw,pcm_s16be,pcm_s16be_planar,pcm_s16le,pcm_s16le_planar,pcm_s24be,pcm_s24le,pcm_s24le_planar,pcm_s32be,pcm_s32le,pcm_s32le_planar,pcm_s8,pcm_s8_planar,pcm_u16be,pcm_u16le,pcm_u24be,pcm_u24le,pcm_u32be,pcm_u32le,pcm_u8,pcx,pgm,pgmyuv,phm,png,ppm,prores,prores_aw,prores_ks,qoi,qtrle,r10k,r210,ra_144,rawvideo,roq,roq_dpcm,rpza,rv10,rv20,s302m,sbc,sgi,smc,snow,sonic,sonic_ls,speedhq,srt,ssa,subrip,sunrast,svq1,targa,text,tiff,truehd,tta,ttml,utvideo,v210,v308,v408,v410,vc1_qsv,vc1_v4l2m2m,vc2,vnull,vorbis,vp8_qsv,vp8_v4l2m2m,vp8_vaapi,vp9_qsv,vp9_vaapi,wavpack,wbmp,webvtt,wmav1,wmav2,wmv1,wmv2,wrapped_avframe,xbm,xface,xsub,xwd,y41p,yuv4,zlib,zmbv,' --enable-decoder=',aac,aasc,libfdk_aac,ac3,acelp_kelvin,adpcm_4xm,adpcm_adx,adpcm_afc,adpcm_agm,adpcm_aica,adpcm_argo,adpcm_ct,adpcm_dtk,adpcm_ea,adpcm_ea_maxis_xa,adpcm_ea_r1,adpcm_ea_r2,adpcm_ea_r3,adpcm_ea_xas,adpcm_g722,adpcm_g726,adpcm_g726le,adpcm_ima_acorn,adpcm_ima_alp,adpcm_ima_amv,adpcm_ima_apc,adpcm_ima_apm,adpcm_ima_cunning,adpcm_ima_dat4,adpcm_ima_dk3,adpcm_ima_dk4,adpcm_ima_ea_eacs,adpcm_ima_ea_sead,adpcm_ima_iss,adpcm_ima_moflex,adpcm_ima_mtf,adpcm_ima_oki,adpcm_ima_qt,adpcm_ima_qt_at,adpcm_ima_rad,adpcm_ima_smjpeg,adpcm_ima_ssi,adpcm_ima_wav,adpcm_ima_ws,adpcm_ms,adpcm_mtaf,adpcm_psx,adpcm_sbpro_2,adpcm_sbpro_3,adpcm_sbpro_4,adpcm_swf,adpcm_thp,adpcm_thp_le,adpcm_vima,adpcm_xa,adpcm_xmd,adpcm_yamaha,adpcm_zork,aic,alac,alias_pix,amrnb,amrwb,amv,anm,ansi,anull,apac,ape,apng,arbc,argo,ass,asv1,asv2,atrac1,atrac3,atrac3al,atrac3p,atrac3pal,aura,aura2,av1,av1_qsv,bethsoftvid,bfi,bink,binkaudio_dct,binkaudio_rdft,bintext,bitpacked,bmp,bmv_audio,bmv_video,bonk,brender_pix,c93,cbd2_dpcm,ccaption,cdgraphics,cdtoons,cdxl,cinepak,clearvideo,cljr,cook,cpia,cscd,cyuv,dca,dds,derf_dpcm,dfa,dfpwm,dirac,dnxhd,dnxhr,dolby_e,dpx,dsd_lsbf,dsd_msbf,dsicinaudio,dsicinvideo,dss_sp,dvaudio,dvbsub,dvdsub,dvvideo,dxa,dxtory,eacmv,eamad,eatgq,eatgv,eatqi,eightbps,eightsvx_exp,eightsvx_fib,escape124,escape130,evrc,exr,ffv1,ffvhuff,ffwavesynth,fits,flac,flashsv,flashsv2,flic,flv,fmvc,fourxm,ftr,g723_1,g729,gdv,gem,gif,gremlin_dpcm,gsm,gsm_ms,gsm_ms_at,h261,h263,h263_v4l2m2m,h263i,h263p,hap,hca,hcom,hdr,hnm4_video,hq_hqa,hqx,huffyuv,hymt,iac,idcin,idf,iff_ilbm,ilbc,imc,indeo2,indeo3,indeo4,indeo5,interplay_acm,interplay_dpcm,interplay_video,ipu,jacosub,jpeg2000,jpegls,jv,kgv1,kmvc,lagarith,libaribb24,libaribcaption,libaom,libaom_av1,libcodec2,libdav1d,libgsm,libgsm_ms,libilbc,libjxl,liblc3,libopencore_amrnb,libopencore_amrwb,libopenh264,libopenjpeg,libopus,librsvg,libschroedinger,libspeex,libvorbis,libvpx_vp8,libvpx_vp9,libxevd,libzvbi_teletext,loco,lscr,m101,mace3,mace6,mdec,media100,metasound,microdvd,mimic,misc4,mjpeg,mjpeg_qsv,mjpegb,mlp,mmvideo,motionpixels,mp1,mp1float,mp2,mp2float,mp3,mp3adu,mp3adufloat,mp3float,mp3on4,mp3on4float,mpc7,mpc8,mpeg1_v4l2m2m,mpeg1video,mpeg2_qsv,mpeg2_v4l2m2m,mpeg2video,mpeg4,mpeg4_v4l2m2m,mpegvideo,mpl2,msa1,mscc,msmpeg4v1,msmpeg4v2,msmpeg4v3,msnsiren,msp2,msrle,mss1,mss2,msvideo1,mszh,mts2,mv30,mvc1,mvc2,mvdv,mvha,mwsc,mxpeg,nellymoser,nuv,on2avc,opus,paf_audio,paf_video,pam,pbm,pcm_alaw,pcm_bluray,pcm_dvd,pcm_f16le,pcm_f24le,pcm_f32be,pcm_f32le,pcm_f64be,pcm_f64le,pcm_lxf,pcm_mulaw,pcm_s16be,pcm_s16be_planar,pcm_s16le,pcm_s16le_planar,pcm_s24be,pcm_s24daud,pcm_s24le,pcm_s24le_planar,pcm_s32be,pcm_s32le,pcm_s32le_planar,pcm_s64be,pcm_s64le,pcm_s8,pcm_s8_planar,pcm_sga,pcm_u16be,pcm_u16le,pcm_u24be,pcm_u24le,pcm_u32be,pcm_u32le,pcm_u8,pcm_vidc,pcx,pfm,pgm,pgmyuv,pgssub,pgx,phm,photocd,pictor,pjs,png,ppm,prores,prosumer,psd,ptx,qcelp,qdm2,qdmc,qdraw,qoa,qoi,qpeg,qtrle,r10k,r210,ra_144,ra_288,rasc,rawvideo,realtext,rka,rl2,roq,roq_dpcm,rpza,rscc,rv10,rv20,s302m,sami,sanm,sbc,screenpresso,sdx2_dpcm,sgi,sgirle,shorten,simbiosis_imx,sipr,siren,smackaud,smacker,smc,smvjpeg,snow,sol_dpcm,sonic,sp5x,speedhq,speex,srgc,srt,ssa,stl,subrip,subviewer,subviewer1,sunrast,svq1,svq3,tak,targa,targa_y216,tdsc,text,theora,thp,tiertexseqvideo,tiff,tmv,truehd,truemotion1,truemotion2,truemotion2rt,truespeech,tscc,tscc2,tta,twinvq,txd,ulti,utvideo,v210,v210x,v308,v408,v410,vb,vble,vcr1,vmdaudio,vmdvideo,vmnc,vnull,vorbis,vp3,vp4,vp5,vp6,vp6a,vp6f,vp7,vp8,vp8_qsv,vp8_v4l2m2m,vp9,vp9_qsv,vp9_v4l2m2m,vplayer,vqa,vqc,wady_dpcm,wavarc,wavpack,wbmp,wcmv,webp,webvtt,wmav1,wmav2,wmavoice,wmv1,wmv2,wnv1,wrapped_avframe,ws_snd1,xan_dpcm,xan_wc3,xan_wc4,xbin,xbm,xface,xl,xpm,xsub,xwd,y41p,ylc,yop,yuv4,zero12v,zerocodec,zlib,zmbv,'
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.101 / 61. 19.101
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
Input #0, flac, from '/home/ravik/src_git/karaoke_extractor/superman.flac':
  Metadata:
    ALBUM           : The Eminem Show
    album_artist    : Eminem
    ARTIST          : Eminem
    BARCODE         : 606949329020
    CATALOGNUMBER   : 493 290-2
    DATE            : 2002
    disc            : 1
    GENRE           : Rap/Hip-Hop
    MUSICBRAINZ_ALBUMARTISTID: b95ce3ff-3d05-4e87-9e01-c97b66af13d4
    MUSICBRAINZ_ALBUMID: 40a7080b-40e4-3b24-847a-d21aaee5f414
    MUSICBRAINZ_ALBUMSTATUS: Official
    MUSICBRAINZ_ALBUMTYPE: Album
    MUSICBRAINZ_ARTISTID: b95ce3ff-3d05-4e87-9e01-c97b66af13d4;ccd46862-b51b-4872-8917-54a8baa7eea4
    MUSICBRAINZ_DISCID: 0B1iY_RY1N9CTTArijmmvCbcMaY-
    MUSICBRAINZ_RELEASEGROUPID: e9585ed4-d148-3711-bbee-55a97b58325a
    MUSICBRAINZ_TRACKID: 33caa39a-c637-407e-851a-df0d92e8821f
    ORIGINAL RELEASE DATE: 2002-05-27
    TITLE           : Superman
    TRACKTOTAL      : 20
    track           : 13
    replaygain_album_gain: -9.54 dB
    replaygain_album_peak: 1.000000
    replaygain_track_gain: -9.50 dB
    replaygain_track_peak: 0.988525
  Duration: 00:05:50.32, start: 0.000000, bitrate: 956 kb/s
  Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
      Side data:
        replaygain: track gain - -9.500000, track peak - 0.000023, album gain - -9.540000, album peak - 0.000023, 
  Stream #0:1: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 400x397 [SAR 72:72 DAR 400:397], 90k tbr, 90k tbn (attached pic)
      Metadata:
        comment         : Cover (front)
Stream mapping:
  Stream #0:0 -> #0:0 (flac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, wav, to '/tmp/karaoke_extract_3um718ro/superman.wav':
  Metadata:
    IPRD            : The Eminem Show
    album_artist    : Eminem
    IART            : Eminem
    BARCODE         : 606949329020
    CATALOGNUMBER   : 493 290-2
    ICRD            : 2002
    disc            : 1
    IGNR            : Rap/Hip-Hop
    MUSICBRAINZ_ALBUMARTISTID: b95ce3ff-3d05-4e87-9e01-c97b66af13d4
    MUSICBRAINZ_ALBUMID: 40a7080b-40e4-3b24-847a-d21aaee5f414
    MUSICBRAINZ_ALBUMSTATUS: Official
    MUSICBRAINZ_ALBUMTYPE: Album
    MUSICBRAINZ_ARTISTID: b95ce3ff-3d05-4e87-9e01-c97b66af13d4;ccd46862-b51b-4872-8917-54a8baa7eea4
    MUSICBRAINZ_DISCID: 0B1iY_RY1N9CTTArijmmvCbcMaY-
    MUSICBRAINZ_RELEASEGROUPID: e9585ed4-d148-3711-bbee-55a97b58325a
    MUSICBRAINZ_TRACKID: 33caa39a-c637-407e-851a-df0d92e8821f
    ORIGINAL RELEASE DATE: 2002-05-27
    INAM            : Superman
    TRACKTOTAL      : 20
    IPRT            : 13
    replaygain_album_gain: -9.54 dB
    replaygain_album_peak: 1.000000
    replaygain_track_gain: -9.50 dB
    replaygain_track_peak: 0.988525
    ISFT            : Lavf61.7.100
  Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
      Metadata:
        encoder         : Lavc61.19.101 pcm_s16le
      Side data:
        replaygain: track gain - -9.500000, track peak - 0.000023, album gain - -9.540000, album peak - 0.000023, 
[out#0/wav @ 0x555c9f1de340] video:0KiB audio:60348KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.000295%
size=   60348KiB time=00:05:50.32 bitrate=1411.2kbits/s speed=6.42e+03x    
2) Separating stems via Demucs (library mode)...
Downloading: "https://dl.fbaipublicfiles.com/demucs/hybrid_transformer/955717e8-8726e21a.th" to /home/ravik/.cache/torch/hub/checkpoints/955717e8-8726e21a.th
100%|██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 80.2M/80.2M [00:02<00:00, 31.9MB/s]
100%|████████████████████████████████████████████████████████████████████████| 351.0/351.0 [00:50<00:00,  6.98seconds/s]
3) Encoding stems to MP3...
>> /usr/bin/ffmpeg -y -i /tmp/karaoke_extract_3um718ro/stems/vocals.wav -vn -codec:a libmp3lame -b:a 192k /home/ravik/src_git/karaoke_extractor/outputs/superman_20260101_vocals.mp3
ffmpeg version 7.1.2 Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 15 (GCC)
  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wno-error=incompatible-pointer-types -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer ' --extra-ldflags='-Wl,-z,relro -Wl,--as-needed -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-hardened-ld-errors -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes ' --disable-htmlpages --disable-static --disable-stripping --enable-pic --enable-shared --enable-gpl --enable-version3 --enable-amf --enable-avcodec --enable-avdevice --enable-avfilter --enable-avformat --enable-alsa --enable-bzlib --enable-chromaprint --disable-cuda-nvcc --enable-cuvid --disable-decklink --enable-frei0r --enable-gcrypt --enable-gmp --enable-gnutls --enable-gray --enable-iconv --enable-ladspa --enable-lcms2 --enable-libaom --enable-libaribb24 --enable-libaribcaption --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --disable-libdavs2 --enable-libdc1394 --enable-libdvdnav --enable-libdvdread --enable-libfdk-aac --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libharfbuzz --enable-libgsm --enable-libiec61883 --enable-libilbc --enable-libjack --enable-libjxl --enable-libklvanc --disable-liblensfun --disable-liblcevc-dec --enable-liblc3 --enable-libmodplug --enable-libmp3lame --enable-libmysofa --disable-libnpp --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-libopencv --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-libqrencode --disable-libquirc --enable-librabbitmq --enable-librav1e --enable-librist --enable-librsvg --enable-librubberband --enable-libshaderc --disable-libshine --enable-libsmbclient --enable-libsnappy --enable-libsvtav1 --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --disable-libtensorflow --enable-libtesseract --enable-libtheora --disable-libtorch --disable-libuavs3d --enable-libtwolame --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --disable-libxavs2 --disable-libxavs --enable-libxcb --enable-libxcb-shape --enable-libxcb-shm --enable-libxcb-xfixes --enable-libxeveb --enable-libxevdb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lto --enable-lv2 --enable-lzma --enable-manpages --enable-nvdec --enable-nvenc --enable-openal --disable-openssl --enable-postproc --enable-pthreads --enable-sdl2 --enable-shared --enable-swresample --enable-swscale --enable-v4l2-m2m --enable-vaapi --enable-vapoursynth --enable-vdpau --enable-vulkan --enable-xlib --enable-zlib --enable-muxers --enable-demuxers --enable-hwaccels --disable-encoders --disable-decoders --disable-decoder='h264,hevc,vc1,vvc' --enable-encoder=',a64multi,a64multi5,aac,libfdk_aac,ac3,adpcm_adx,adpcm_argo,adpcm_g722,adpcm_g726,adpcm_g726le,adpcm_ima_alp,adpcm_ima_amv,adpcm_ima_apm,adpcm_ima_qt,adpcm_ima_ssi,adpcm_ima_wav,adpcm_ima_ws,adpcm_ms,adpcm_swf,adpcm_yamaha,alac,alias_pix,amv,anull,apng,ass,asv1,asv2,av1_amf,av1_nvenc,av1_qsv,av1_vaapi,bitpacked,bmp,cinepak,cljr,dca,dfpwm,dnxhd,dnxhr,dpx,dvbsub,dvdsub,dvvideo,exr,ffv1,ffvhuff,flac,flashsv,flashsv2,flv,g723_1,gif,h261,h263,h263_v4l2m2m,h263p,h264_amf,h264_nvenc,h264_qsv,h264_v4l2m2m,h264_vaapi,hap,hdr,hevc_amf,hevc_nvenc,hevc_qsv,hevc_v4l2m2m,hevc_vaapi,huffyuv,ilbc,jpeg2000,jpegls,libaom,libaom_av1,libcodec2,libgsm,libgsm_ms,libilbc,libjxl,liblc3,libmp3lame,libopencore_amrnb,libopenh264,libopenjpeg,libopus,librav1e,libspeex,libsvtav1,libtheora,libtwolame,libvo_amrwbenc,libvorbis,libvpx_vp8,libvpx_vp9,libwebp,libwebp_anim,libxeve,libxvid,mjpeg,mjpeg_qsv,mjpeg_vaapi,mlp,mp2,mp2fixed,mpeg1video,mpeg2_qsv,mpeg2_vaapi,mpeg2video,mpeg4,mpeg4_v4l2m2m,msmpeg4v2,msmpeg4v3,msvideo1,nellymoser,opus,pam,pbm,pcm_alaw,pcm_f32be,pcm_f32le,pcm_f64be,pcm_f64le,pcm_mulaw,pcm_s16be,pcm_s16be_planar,pcm_s16le,pcm_s16le_planar,pcm_s24be,pcm_s24le,pcm_s24le_planar,pcm_s32be,pcm_s32le,pcm_s32le_planar,pcm_s8,pcm_s8_planar,pcm_u16be,pcm_u16le,pcm_u24be,pcm_u24le,pcm_u32be,pcm_u32le,pcm_u8,pcx,pgm,pgmyuv,phm,png,ppm,prores,prores_aw,prores_ks,qoi,qtrle,r10k,r210,ra_144,rawvideo,roq,roq_dpcm,rpza,rv10,rv20,s302m,sbc,sgi,smc,snow,sonic,sonic_ls,speedhq,srt,ssa,subrip,sunrast,svq1,targa,text,tiff,truehd,tta,ttml,utvideo,v210,v308,v408,v410,vc1_qsv,vc1_v4l2m2m,vc2,vnull,vorbis,vp8_qsv,vp8_v4l2m2m,vp8_vaapi,vp9_qsv,vp9_vaapi,wavpack,wbmp,webvtt,wmav1,wmav2,wmv1,wmv2,wrapped_avframe,xbm,xface,xsub,xwd,y41p,yuv4,zlib,zmbv,' --enable-decoder=',aac,aasc,libfdk_aac,ac3,acelp_kelvin,adpcm_4xm,adpcm_adx,adpcm_afc,adpcm_agm,adpcm_aica,adpcm_argo,adpcm_ct,adpcm_dtk,adpcm_ea,adpcm_ea_maxis_xa,adpcm_ea_r1,adpcm_ea_r2,adpcm_ea_r3,adpcm_ea_xas,adpcm_g722,adpcm_g726,adpcm_g726le,adpcm_ima_acorn,adpcm_ima_alp,adpcm_ima_amv,adpcm_ima_apc,adpcm_ima_apm,adpcm_ima_cunning,adpcm_ima_dat4,adpcm_ima_dk3,adpcm_ima_dk4,adpcm_ima_ea_eacs,adpcm_ima_ea_sead,adpcm_ima_iss,adpcm_ima_moflex,adpcm_ima_mtf,adpcm_ima_oki,adpcm_ima_qt,adpcm_ima_qt_at,adpcm_ima_rad,adpcm_ima_smjpeg,adpcm_ima_ssi,adpcm_ima_wav,adpcm_ima_ws,adpcm_ms,adpcm_mtaf,adpcm_psx,adpcm_sbpro_2,adpcm_sbpro_3,adpcm_sbpro_4,adpcm_swf,adpcm_thp,adpcm_thp_le,adpcm_vima,adpcm_xa,adpcm_xmd,adpcm_yamaha,adpcm_zork,aic,alac,alias_pix,amrnb,amrwb,amv,anm,ansi,anull,apac,ape,apng,arbc,argo,ass,asv1,asv2,atrac1,atrac3,atrac3al,atrac3p,atrac3pal,aura,aura2,av1,av1_qsv,bethsoftvid,bfi,bink,binkaudio_dct,binkaudio_rdft,bintext,bitpacked,bmp,bmv_audio,bmv_video,bonk,brender_pix,c93,cbd2_dpcm,ccaption,cdgraphics,cdtoons,cdxl,cinepak,clearvideo,cljr,cook,cpia,cscd,cyuv,dca,dds,derf_dpcm,dfa,dfpwm,dirac,dnxhd,dnxhr,dolby_e,dpx,dsd_lsbf,dsd_msbf,dsicinaudio,dsicinvideo,dss_sp,dvaudio,dvbsub,dvdsub,dvvideo,dxa,dxtory,eacmv,eamad,eatgq,eatgv,eatqi,eightbps,eightsvx_exp,eightsvx_fib,escape124,escape130,evrc,exr,ffv1,ffvhuff,ffwavesynth,fits,flac,flashsv,flashsv2,flic,flv,fmvc,fourxm,ftr,g723_1,g729,gdv,gem,gif,gremlin_dpcm,gsm,gsm_ms,gsm_ms_at,h261,h263,h263_v4l2m2m,h263i,h263p,hap,hca,hcom,hdr,hnm4_video,hq_hqa,hqx,huffyuv,hymt,iac,idcin,idf,iff_ilbm,ilbc,imc,indeo2,indeo3,indeo4,indeo5,interplay_acm,interplay_dpcm,interplay_video,ipu,jacosub,jpeg2000,jpegls,jv,kgv1,kmvc,lagarith,libaribb24,libaribcaption,libaom,libaom_av1,libcodec2,libdav1d,libgsm,libgsm_ms,libilbc,libjxl,liblc3,libopencore_amrnb,libopencore_amrwb,libopenh264,libopenjpeg,libopus,librsvg,libschroedinger,libspeex,libvorbis,libvpx_vp8,libvpx_vp9,libxevd,libzvbi_teletext,loco,lscr,m101,mace3,mace6,mdec,media100,metasound,microdvd,mimic,misc4,mjpeg,mjpeg_qsv,mjpegb,mlp,mmvideo,motionpixels,mp1,mp1float,mp2,mp2float,mp3,mp3adu,mp3adufloat,mp3float,mp3on4,mp3on4float,mpc7,mpc8,mpeg1_v4l2m2m,mpeg1video,mpeg2_qsv,mpeg2_v4l2m2m,mpeg2video,mpeg4,mpeg4_v4l2m2m,mpegvideo,mpl2,msa1,mscc,msmpeg4v1,msmpeg4v2,msmpeg4v3,msnsiren,msp2,msrle,mss1,mss2,msvideo1,mszh,mts2,mv30,mvc1,mvc2,mvdv,mvha,mwsc,mxpeg,nellymoser,nuv,on2avc,opus,paf_audio,paf_video,pam,pbm,pcm_alaw,pcm_bluray,pcm_dvd,pcm_f16le,pcm_f24le,pcm_f32be,pcm_f32le,pcm_f64be,pcm_f64le,pcm_lxf,pcm_mulaw,pcm_s16be,pcm_s16be_planar,pcm_s16le,pcm_s16le_planar,pcm_s24be,pcm_s24daud,pcm_s24le,pcm_s24le_planar,pcm_s32be,pcm_s32le,pcm_s32le_planar,pcm_s64be,pcm_s64le,pcm_s8,pcm_s8_planar,pcm_sga,pcm_u16be,pcm_u16le,pcm_u24be,pcm_u24le,pcm_u32be,pcm_u32le,pcm_u8,pcm_vidc,pcx,pfm,pgm,pgmyuv,pgssub,pgx,phm,photocd,pictor,pjs,png,ppm,prores,prosumer,psd,ptx,qcelp,qdm2,qdmc,qdraw,qoa,qoi,qpeg,qtrle,r10k,r210,ra_144,ra_288,rasc,rawvideo,realtext,rka,rl2,roq,roq_dpcm,rpza,rscc,rv10,rv20,s302m,sami,sanm,sbc,screenpresso,sdx2_dpcm,sgi,sgirle,shorten,simbiosis_imx,sipr,siren,smackaud,smacker,smc,smvjpeg,snow,sol_dpcm,sonic,sp5x,speedhq,speex,srgc,srt,ssa,stl,subrip,subviewer,subviewer1,sunrast,svq1,svq3,tak,targa,targa_y216,tdsc,text,theora,thp,tiertexseqvideo,tiff,tmv,truehd,truemotion1,truemotion2,truemotion2rt,truespeech,tscc,tscc2,tta,twinvq,txd,ulti,utvideo,v210,v210x,v308,v408,v410,vb,vble,vcr1,vmdaudio,vmdvideo,vmnc,vnull,vorbis,vp3,vp4,vp5,vp6,vp6a,vp6f,vp7,vp8,vp8_qsv,vp8_v4l2m2m,vp9,vp9_qsv,vp9_v4l2m2m,vplayer,vqa,vqc,wady_dpcm,wavarc,wavpack,wbmp,wcmv,webp,webvtt,wmav1,wmav2,wmavoice,wmv1,wmv2,wnv1,wrapped_avframe,ws_snd1,xan_dpcm,xan_wc3,xan_wc4,xbin,xbm,xface,xl,xpm,xsub,xwd,y41p,ylc,yop,yuv4,zero12v,zerocodec,zlib,zmbv,'
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.101 / 61. 19.101
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
[aist#0:0/pcm_s16le @ 0x560093727280] Guessed Channel Layout: stereo
Input #0, wav, from '/tmp/karaoke_extract_3um718ro/stems/vocals.wav':
  Duration: 00:05:50.32, bitrate: 1411 kb/s
  Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp3 (libmp3lame))
Press [q] to stop, [?] for help
Output #0, mp3, to '/home/ravik/src_git/karaoke_extractor/outputs/superman_20260101_vocals.mp3':
  Metadata:
    TSSE            : Lavf61.7.100
  Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 192 kb/s
      Metadata:
        encoder         : Lavc61.19.101 libmp3lame
[out#0/mp3 @ 0x560093727480] video:0KiB audio:8211KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.007968%
size=    8212KiB time=00:05:50.32 bitrate= 192.0kbits/s speed= 139x    
>> /usr/bin/ffmpeg -y -i /tmp/karaoke_extract_3um718ro/stems/other.wav -vn -codec:a libmp3lame -b:a 192k /home/ravik/src_git/karaoke_extractor/outputs/superman_20260101_instrumental.mp3
ffmpeg version 7.1.2 Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 15 (GCC)
  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wno-error=incompatible-pointer-types -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer ' --extra-ldflags='-Wl,-z,relro -Wl,--as-needed -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-hardened-ld-errors -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes ' --disable-htmlpages --disable-static --disable-stripping --enable-pic --enable-shared --enable-gpl --enable-version3 --enable-amf --enable-avcodec --enable-avdevice --enable-avfilter --enable-avformat --enable-alsa --enable-bzlib --enable-chromaprint --disable-cuda-nvcc --enable-cuvid --disable-decklink --enable-frei0r --enable-gcrypt --enable-gmp --enable-gnutls --enable-gray --enable-iconv --enable-ladspa --enable-lcms2 --enable-libaom --enable-libaribb24 --enable-libaribcaption --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --disable-libdavs2 --enable-libdc1394 --enable-libdvdnav --enable-libdvdread --enable-libfdk-aac --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libharfbuzz --enable-libgsm --enable-libiec61883 --enable-libilbc --enable-libjack --enable-libjxl --enable-libklvanc --disable-liblensfun --disable-liblcevc-dec --enable-liblc3 --enable-libmodplug --enable-libmp3lame --enable-libmysofa --disable-libnpp --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-libopencv --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-libqrencode --disable-libquirc --enable-librabbitmq --enable-librav1e --enable-librist --enable-librsvg --enable-librubberband --enable-libshaderc --disable-libshine --enable-libsmbclient --enable-libsnappy --enable-libsvtav1 --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --disable-libtensorflow --enable-libtesseract --enable-libtheora --disable-libtorch --disable-libuavs3d --enable-libtwolame --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --disable-libxavs2 --disable-libxavs --enable-libxcb --enable-libxcb-shape --enable-libxcb-shm --enable-libxcb-xfixes --enable-libxeveb --enable-libxevdb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lto --enable-lv2 --enable-lzma --enable-manpages --enable-nvdec --enable-nvenc --enable-openal --disable-openssl --enable-postproc --enable-pthreads --enable-sdl2 --enable-shared --enable-swresample --enable-swscale --enable-v4l2-m2m --enable-vaapi --enable-vapoursynth --enable-vdpau --enable-vulkan --enable-xlib --enable-zlib --enable-muxers --enable-demuxers --enable-hwaccels --disable-encoders --disable-decoders --disable-decoder='h264,hevc,vc1,vvc' --enable-encoder=',a64multi,a64multi5,aac,libfdk_aac,ac3,adpcm_adx,adpcm_argo,adpcm_g722,adpcm_g726,adpcm_g726le,adpcm_ima_alp,adpcm_ima_amv,adpcm_ima_apm,adpcm_ima_qt,adpcm_ima_ssi,adpcm_ima_wav,adpcm_ima_ws,adpcm_ms,adpcm_swf,adpcm_yamaha,alac,alias_pix,amv,anull,apng,ass,asv1,asv2,av1_amf,av1_nvenc,av1_qsv,av1_vaapi,bitpacked,bmp,cinepak,cljr,dca,dfpwm,dnxhd,dnxhr,dpx,dvbsub,dvdsub,dvvideo,exr,ffv1,ffvhuff,flac,flashsv,flashsv2,flv,g723_1,gif,h261,h263,h263_v4l2m2m,h263p,h264_amf,h264_nvenc,h264_qsv,h264_v4l2m2m,h264_vaapi,hap,hdr,hevc_amf,hevc_nvenc,hevc_qsv,hevc_v4l2m2m,hevc_vaapi,huffyuv,ilbc,jpeg2000,jpegls,libaom,libaom_av1,libcodec2,libgsm,libgsm_ms,libilbc,libjxl,liblc3,libmp3lame,libopencore_amrnb,libopenh264,libopenjpeg,libopus,librav1e,libspeex,libsvtav1,libtheora,libtwolame,libvo_amrwbenc,libvorbis,libvpx_vp8,libvpx_vp9,libwebp,libwebp_anim,libxeve,libxvid,mjpeg,mjpeg_qsv,mjpeg_vaapi,mlp,mp2,mp2fixed,mpeg1video,mpeg2_qsv,mpeg2_vaapi,mpeg2video,mpeg4,mpeg4_v4l2m2m,msmpeg4v2,msmpeg4v3,msvideo1,nellymoser,opus,pam,pbm,pcm_alaw,pcm_f32be,pcm_f32le,pcm_f64be,pcm_f64le,pcm_mulaw,pcm_s16be,pcm_s16be_planar,pcm_s16le,pcm_s16le_planar,pcm_s24be,pcm_s24le,pcm_s24le_planar,pcm_s32be,pcm_s32le,pcm_s32le_planar,pcm_s8,pcm_s8_planar,pcm_u16be,pcm_u16le,pcm_u24be,pcm_u24le,pcm_u32be,pcm_u32le,pcm_u8,pcx,pgm,pgmyuv,phm,png,ppm,prores,prores_aw,prores_ks,qoi,qtrle,r10k,r210,ra_144,rawvideo,roq,roq_dpcm,rpza,rv10,rv20,s302m,sbc,sgi,smc,snow,sonic,sonic_ls,speedhq,srt,ssa,subrip,sunrast,svq1,targa,text,tiff,truehd,tta,ttml,utvideo,v210,v308,v408,v410,vc1_qsv,vc1_v4l2m2m,vc2,vnull,vorbis,vp8_qsv,vp8_v4l2m2m,vp8_vaapi,vp9_qsv,vp9_vaapi,wavpack,wbmp,webvtt,wmav1,wmav2,wmv1,wmv2,wrapped_avframe,xbm,xface,xsub,xwd,y41p,yuv4,zlib,zmbv,' --enable-decoder=',aac,aasc,libfdk_aac,ac3,acelp_kelvin,adpcm_4xm,adpcm_adx,adpcm_afc,adpcm_agm,adpcm_aica,adpcm_argo,adpcm_ct,adpcm_dtk,adpcm_ea,adpcm_ea_maxis_xa,adpcm_ea_r1,adpcm_ea_r2,adpcm_ea_r3,adpcm_ea_xas,adpcm_g722,adpcm_g726,adpcm_g726le,adpcm_ima_acorn,adpcm_ima_alp,adpcm_ima_amv,adpcm_ima_apc,adpcm_ima_apm,adpcm_ima_cunning,adpcm_ima_dat4,adpcm_ima_dk3,adpcm_ima_dk4,adpcm_ima_ea_eacs,adpcm_ima_ea_sead,adpcm_ima_iss,adpcm_ima_moflex,adpcm_ima_mtf,adpcm_ima_oki,adpcm_ima_qt,adpcm_ima_qt_at,adpcm_ima_rad,adpcm_ima_smjpeg,adpcm_ima_ssi,adpcm_ima_wav,adpcm_ima_ws,adpcm_ms,adpcm_mtaf,adpcm_psx,adpcm_sbpro_2,adpcm_sbpro_3,adpcm_sbpro_4,adpcm_swf,adpcm_thp,adpcm_thp_le,adpcm_vima,adpcm_xa,adpcm_xmd,adpcm_yamaha,adpcm_zork,aic,alac,alias_pix,amrnb,amrwb,amv,anm,ansi,anull,apac,ape,apng,arbc,argo,ass,asv1,asv2,atrac1,atrac3,atrac3al,atrac3p,atrac3pal,aura,aura2,av1,av1_qsv,bethsoftvid,bfi,bink,binkaudio_dct,binkaudio_rdft,bintext,bitpacked,bmp,bmv_audio,bmv_video,bonk,brender_pix,c93,cbd2_dpcm,ccaption,cdgraphics,cdtoons,cdxl,cinepak,clearvideo,cljr,cook,cpia,cscd,cyuv,dca,dds,derf_dpcm,dfa,dfpwm,dirac,dnxhd,dnxhr,dolby_e,dpx,dsd_lsbf,dsd_msbf,dsicinaudio,dsicinvideo,dss_sp,dvaudio,dvbsub,dvdsub,dvvideo,dxa,dxtory,eacmv,eamad,eatgq,eatgv,eatqi,eightbps,eightsvx_exp,eightsvx_fib,escape124,escape130,evrc,exr,ffv1,ffvhuff,ffwavesynth,fits,flac,flashsv,flashsv2,flic,flv,fmvc,fourxm,ftr,g723_1,g729,gdv,gem,gif,gremlin_dpcm,gsm,gsm_ms,gsm_ms_at,h261,h263,h263_v4l2m2m,h263i,h263p,hap,hca,hcom,hdr,hnm4_video,hq_hqa,hqx,huffyuv,hymt,iac,idcin,idf,iff_ilbm,ilbc,imc,indeo2,indeo3,indeo4,indeo5,interplay_acm,interplay_dpcm,interplay_video,ipu,jacosub,jpeg2000,jpegls,jv,kgv1,kmvc,lagarith,libaribb24,libaribcaption,libaom,libaom_av1,libcodec2,libdav1d,libgsm,libgsm_ms,libilbc,libjxl,liblc3,libopencore_amrnb,libopencore_amrwb,libopenh264,libopenjpeg,libopus,librsvg,libschroedinger,libspeex,libvorbis,libvpx_vp8,libvpx_vp9,libxevd,libzvbi_teletext,loco,lscr,m101,mace3,mace6,mdec,media100,metasound,microdvd,mimic,misc4,mjpeg,mjpeg_qsv,mjpegb,mlp,mmvideo,motionpixels,mp1,mp1float,mp2,mp2float,mp3,mp3adu,mp3adufloat,mp3float,mp3on4,mp3on4float,mpc7,mpc8,mpeg1_v4l2m2m,mpeg1video,mpeg2_qsv,mpeg2_v4l2m2m,mpeg2video,mpeg4,mpeg4_v4l2m2m,mpegvideo,mpl2,msa1,mscc,msmpeg4v1,msmpeg4v2,msmpeg4v3,msnsiren,msp2,msrle,mss1,mss2,msvideo1,mszh,mts2,mv30,mvc1,mvc2,mvdv,mvha,mwsc,mxpeg,nellymoser,nuv,on2avc,opus,paf_audio,paf_video,pam,pbm,pcm_alaw,pcm_bluray,pcm_dvd,pcm_f16le,pcm_f24le,pcm_f32be,pcm_f32le,pcm_f64be,pcm_f64le,pcm_lxf,pcm_mulaw,pcm_s16be,pcm_s16be_planar,pcm_s16le,pcm_s16le_planar,pcm_s24be,pcm_s24daud,pcm_s24le,pcm_s24le_planar,pcm_s32be,pcm_s32le,pcm_s32le_planar,pcm_s64be,pcm_s64le,pcm_s8,pcm_s8_planar,pcm_sga,pcm_u16be,pcm_u16le,pcm_u24be,pcm_u24le,pcm_u32be,pcm_u32le,pcm_u8,pcm_vidc,pcx,pfm,pgm,pgmyuv,pgssub,pgx,phm,photocd,pictor,pjs,png,ppm,prores,prosumer,psd,ptx,qcelp,qdm2,qdmc,qdraw,qoa,qoi,qpeg,qtrle,r10k,r210,ra_144,ra_288,rasc,rawvideo,realtext,rka,rl2,roq,roq_dpcm,rpza,rscc,rv10,rv20,s302m,sami,sanm,sbc,screenpresso,sdx2_dpcm,sgi,sgirle,shorten,simbiosis_imx,sipr,siren,smackaud,smacker,smc,smvjpeg,snow,sol_dpcm,sonic,sp5x,speedhq,speex,srgc,srt,ssa,stl,subrip,subviewer,subviewer1,sunrast,svq1,svq3,tak,targa,targa_y216,tdsc,text,theora,thp,tiertexseqvideo,tiff,tmv,truehd,truemotion1,truemotion2,truemotion2rt,truespeech,tscc,tscc2,tta,twinvq,txd,ulti,utvideo,v210,v210x,v308,v408,v410,vb,vble,vcr1,vmdaudio,vmdvideo,vmnc,vnull,vorbis,vp3,vp4,vp5,vp6,vp6a,vp6f,vp7,vp8,vp8_qsv,vp8_v4l2m2m,vp9,vp9_qsv,vp9_v4l2m2m,vplayer,vqa,vqc,wady_dpcm,wavarc,wavpack,wbmp,wcmv,webp,webvtt,wmav1,wmav2,wmavoice,wmv1,wmv2,wnv1,wrapped_avframe,ws_snd1,xan_dpcm,xan_wc3,xan_wc4,xbin,xbm,xface,xl,xpm,xsub,xwd,y41p,ylc,yop,yuv4,zero12v,zerocodec,zlib,zmbv,'
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.101 / 61. 19.101
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
[aist#0:0/pcm_s16le @ 0x559039dd6280] Guessed Channel Layout: stereo
Input #0, wav, from '/tmp/karaoke_extract_3um718ro/stems/other.wav':
  Duration: 00:05:50.32, bitrate: 1411 kb/s
  Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp3 (libmp3lame))
Press [q] to stop, [?] for help
Output #0, mp3, to '/home/ravik/src_git/karaoke_extractor/outputs/superman_20260101_instrumental.mp3':
  Metadata:
    TSSE            : Lavf61.7.100
  Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 192 kb/s
      Metadata:
        encoder         : Lavc61.19.101 libmp3lame
[out#0/mp3 @ 0x559039dd6480] video:0KiB audio:8211KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.007968%
size=    8212KiB time=00:05:50.32 bitrate= 192.0kbits/s speed= 130x    

✅ Done.
Vocals:       /home/ravik/src_git/karaoke_extractor/outputs/superman_20260101_vocals.mp3
Instrumental: /home/ravik/src_git/karaoke_extractor/outputs/superman_20260101_instrumental.mp3
(.venv) ravik@STING:~/src_git/karaoke_extractor$