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audio classification

This directory provieds audio classification on CPU

conf

config is the input of engine

[CONF]
wav_normal=true
wav_normal_type=linear
wav_norm_mul_factor=1.0
model_path=./inference.onnx
param_path=
dict_path=./label_list
num_cpu_thread=1
samp_freq=32000
frame_length_ms=32
frame_shift_ms=10
num_bins=64
low_freq=50
high_freq=14000
dither=0.0

label_list

model output label

Dog
Rooster
Pig
Cow
Frog
Cat
Hen
Insects (flying)
Sheep
Crow
Rain
Sea waves
Crackling fire
.....

scp && test.wav

scp is the input of engine and each line in scp is wav

execute

../../build/Linux/x86_64/engine/audio_classification/nnet/panns_nnet_main --conf_path=./conf --scp_path=./scp --topk=1 usage: panns_nnet_main conf scp topk output such as:

wav_normal = true
wav_normal_type = linear
wav_norm_mul_factor = 1.0
model_path = ./inference.onnx
param_path = 
dict_path = ./label_list
num_cpu_thread = 1
samp_freq = 32000
frame_length_ms = 32
frame_shift_ms = 10
num_bins = 64
low_freq = 50
high_freq = 14000
dither = 0.0
[INFO] fastdeploy/runtime/runtime.cc(293)::CreateOrtBackend     Runtime initialized with Backend::ORT in Device::CPU.
--- Init FastDeploy Runitme Done! 
--- Model:  ./inference.onnx
test.wav{"Clock alarm":"16.5309"}

android demo

install

copy lib & interface

cd ../../ sh build_android.sh cp build/Android/arm64-v8a-api-21/cls-android-out/*.so examples/audio_classification/android_demo/app/src/main/cpp/jniLibs/arm64-v8a/ cp build/Android/arm64-v8a-api-21/cls-android-out/panns_interface.h examples/audio_classification/android_demo/app/src/main/cpp/ includes/

set path

push resource into android phone

change resource path in conf to gloabal path, such as:

[CONF] wav_normal=true wav_normal_type=linear wav_norm_mul_factor=1.0 model_path=/data/local/tmp/inference.onnx param_path= dict_path=/data/local/tmp/label_list num_cpu_thread=1 samp_freq=32000 frame_length_ms=32 frame_shift_ms=10 num_bins=64 low_freq=50 high_freq=14000 dither=0.0
adb push conf label_list scp test.wav /data/local/tmp/
set reource path in android demo(android_demo/app/src/main/cpp/native-lib.cpp) to actual path, such as:

std::string conf_path = "/data/local/tmp/conf"; std::string wav_path = "/data/local/tmp/test.wav";

excecute android_demo in android studio

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