コード例 #1
0
def gen_augmented(original, sample_rate):
    # list of augmentors available from the nlpaug library
    augment_list = [
        #naa.CropAug(sampling_rate=sample_rate)
        naa.NoiseAug(),
        naa.SpeedAug(),
        naa.LoudnessAug(factor=(0.5, 2)),
        naa.VtlpAug(sampling_rate=sample_rate, zone=(0.0, 1.0)),
        naa.PitchAug(sampling_rate=sample_rate, factor=(-1, 3))
    ]
    # sample augmentation randomly
    aug_idx = random.randint(0, len(augment_list) - 1)
    augmented_data = augment_list[aug_idx].augment(original)
    return augmented_data
コード例 #2
0
ファイル: test_vtlp.py プロジェクト: zoeyhub/nlpaug
    def test_zone(self):
        zone = (0, 1)
        coverage = 1.

        for _ in range(10):
            aug = naa.VtlpAug(sampling_rate=self.sampling_rate,
                              zone=zone,
                              coverage=coverage)
            aug.model.stateless = False
            aug.augment(self.audio)

            self.assertGreater(
                len(self.audio[aug.model.start_pos:aug.model.end_pos]),
                len(aug.model.aug_data))
コード例 #3
0
ファイル: test_audio.py プロジェクト: xiaosongyuan/nlpaug
    def test_coverage_and_zone(self):
        params = [
            ((0.3, 0.7), 1),
            ((0, 1), 1)
        ]

        for zone, coverage in params:
            augs = [
                naa.LoudnessAug(zone=zone, coverage=coverage, stateless=False),
                naa.MaskAug(zone=zone, coverage=coverage, stateless=False),
                naa.NoiseAug(zone=zone, coverage=coverage, stateless=False),
                naa.PitchAug(zone=zone, coverage=coverage, stateless=False, sampling_rate=self.sampling_rate),
                naa.SpeedAug(zone=zone, coverage=coverage, stateless=False),
                naa.VtlpAug(zone=zone, coverage=coverage, stateless=False, sampling_rate=self.sampling_rate),
                naa.NormalizeAug(zone=zone, coverage=coverage, stateless=False),
                naa.PolarityInverseAug(zone=zone, coverage=coverage, stateless=False)
            ]

            for aug in augs:
                aug_data = aug.augment(self.audio)
                self.assertTrue(len(aug_data[aug.start_pos:aug.end_pos]), int(len(self.audio) * (zone[1] - zone[0]) * coverage))
コード例 #4
0
ファイル: test_vtlp.py プロジェクト: xingbow/nlpaug
 def test_substitute(self):
     for _ in range(10):
         aug = naa.VtlpAug(sampling_rate=self.sampling_rate,
                           stateless=False)
         augmented_audio = aug.augment(self.audio)
         self.assertGreater(len(self.audio), len(augmented_audio))
コード例 #5
0
import nlpaug.augmenter.audio as naa
import librosa
import glob
from tqdm import tqdm
import os
wlist=glob.glob(r'../IEMOCAP/*.wav')
targetDir='../IEMOCAP/'
aug = naa.VtlpAug(16000, zone=(0.0, 1.0), coverage=1, duration=None, fhi=4800, factor=(0.8, 1.2))
for w in tqdm(wlist):
    for i in range(7):
        wav,_=librosa.load(w,16000)
        wavAug=aug.augment(wav)
        wavName=os.path.basename(w)
        librosa.output.write_wav(targetDir+wavName+'.'+str(i+1),wavAug,16000)
コード例 #6
0
def vtlp(data, sampling_rate):
    aug = naa.VtlpAug(sampling_rate=sampling_rate)
    return aug.augment(data)
コード例 #7
0
def add_vltk(data, sr):
    aug = naa.VtlpAug(sampling_rate=sr)
    return aug.augment(data)