rir

RIR simulation

Generation of the room impluse response (RIR) using image method. Now three optional backends are available:

1. rir-simulate (see setk/src/rir-simulate.cc)
2. pyrirgen
3. gpuRIR

Cmd options

See ./scripts/sptk/rir_generate_1d.py -h or ./scripts/sptk/rir_generate_2d.py -h. Using --gpu true to set gpuRIR as backend.

Usage

The following commands will generate Room{1,2}-{1..25}.wav, rir.json, Room{1,2}.jpg under directory rir_egs. See examples at asset.

1. 1D (linear) arrays

   dump_dir=rir_egs
   num_room=2
   num_rirs=25
   # CPU version is slow, use --gpu true or run.pl to make parallelization
   ../../scripts/sptk/rir_generate_1d.py \
       --num-rirs $num_rirs \
       --dump-dir $dump_dir \
       --array-height "1.2,1.8" \
       --array-topo "0,0.05,0.1,0.15" \
       --room-dim "4,7;4,7;2,3" \
       --rt60 "0.2,0.5" \
       --array-relx "0.4,0.6" \
       --array-rely "0.1,0.2" \
       --speaker-height "1,2" \
       --source-distance "1.5,3" \
       --rir-dur 0.5 \
       --vertical-oriented false \
       --dump-cfg true \
       --gpu false \
       $num_room

2. 2D (circular) arrays

   dump_dir=rir_egs
   num_room=2
   num_rirs=25
   
   ../../scripts/sptk/rir_generate_2d.py \
       --num-rirs $num_rirs \
       --dump-dir $dump_dir \
       --array-height "1.2,1.8" \
       --array-topo "0,0.05;0.05,0;0,-0.05;-0.05,0" \
       --room-dim "4,7;4,7;2,3" \
       --rt60 "0.2,0.5" \
       --array-relx "0.4,0.6" \
       --array-rely "0.1,0.2" \
       --speaker-height "1,2" \
       --source-distance "1.5,3" \
       --rir-dur 0.5 \
       --dump-cfg true \
       --gpu false \
       $num_room