Transcriber configuration

Parameter Default value Notes
beam 13 Beam for decoding
max_active 7000 Max active for decoding
lattice_beam 6 Beam width for decoding lattices
acoustic_scale 0.083333 Multiplier to scale acoustic costs
silence_weight 0.01 Weight on silence in fMLLR estimation
fmllr true Flag for whether to perform speaker adaptation
first_beam 10.0 Beam for decoding in initial speaker-independent pass, only used if fmllr is true
first_max_active 2000 Max active for decoding in initial speaker-independent pass, only used if fmllr is true
fmllr_update_type full Type of fMLLR estimation

Default transcriber config

beam: 13
max_active: 7000
lattice_beam: 6
acoustic_scale: 0.083333
silence_weight: 0.01
fmllr: true
first_beam: 10.0 # Beam used in initial, speaker-indep. pass
first_max_active: 2000 # max-active used in initial pass.
fmllr_update_type: full