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# Source https://askubuntu.com/a/668329/646308
killall pulseaudio
rm -r ~/.config/pulse/*
rm -r ~/.pulse*

# IF NOT WORK: MAY BE A DAW IS TAKING OVER THE CONTROL OF THE OUTPUT
# INSTALL pavucontrol-module-jack. Check the link below
# SOURCE: https://askubuntu.com/a/681079/646308 ######################

# FINAL RESORT: WORKED WITH REAPER + SCARLETTE 2i2 + UBUNTU 20.04

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# edit ~/.inputrc

# want vi to be the default editor for readline                      
set editing-mode vi

# vi settings                                         
$if mode=vi
    # normal mode                           
    set keymap vi-command
    "j": previous-history

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/*
  Copyright @ nguyenvanhieu.vn
  Thằng code java này vẫn giữ được lower/upper case
  Code này ngon hơn, check đúng trường hợp cần thêm dấu thì mới thêm
  Tuy nhiên code python ở dưới không check nhưng vẫn chưa thấy bugs nào hết :v
*/
package utils;

import java.util.*;

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from __future__ import division
from numpy.fft import rfft
from numpy import argmax, mean, diff, log, nonzero
from scipy.signal import blackmanharris, correlate
from time import time
import sys
try:
    import soundfile as sf
except ImportError:
    from scikits.audiolab import flacread

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 #WINE with error (OLE error 80040154)

wget http://winetricks.org/winetricks 

chmod +x winetricks

winetricks -v vcrun6 winetricks -v msxml4

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nnoremap <S-Left> :action EditorLeftWithSelection<CR>
nnoremap <S-Right> :action EditorRightWithSelection<CR>
nnoremap <S-Up> :action EditorUpWithSelection<CR>
nnoremap <S-Down> :action EditorDownWithSelection<CR>

inoremap <S-Left> <C-O>:action EditorLeftWithSelection<CR>
inoremap <S-Right> <C-O>:action EditorRightWithSelection<CR>
inoremap <S-Up> <C-O>:action EditorUpWithSelection<CR>
inoremap <S-Down> <C-O>:action EditorDownWithSelection<CR>

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# copy a list of file (from file_id_list) from src to dest
cat file_id_list | awk '{system("cp " $1 " <dest_dir")}'

# total time of audio file within a directory
soxi -D *.wav | awk '{sum+=$1} END {print sum}'

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# This function is used to reduce memory of a pandas dataframe
# The idea is cast the numeric type to another more memory-effective type
# For ex: Features "age" should only need type='np.int8'
# Source: https://www.kaggle.com/gemartin/load-data-reduce-memory-usage
def reduce_mem_usage(df):
    """ iterate through all the columns of a dataframe and modify the data type
        to reduce memory usage.        
    """
    start_mem = df.memory_usage().sum() / 1024**2
    print('Memory usage of dataframe is {:.2f} MB'.format(start_mem))

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#!/usr/bin/env python
# coding: utf-8
""" This work is licensed under a Creative Commons Attribution 3.0 Unported License.
    Frank Zalkow, 2012-2013 """

# Source: http://www.frank-zalkow.de/en/code-snippets/create-audio-spectrograms-with-python.html?ckattempt=1&i=1

import numpy as np
from matplotlib import pyplot as plt
import scipy.io.wavfile as wav

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from google.colab import drive
drive.mount('/content/drive')

!rm *.json
from google.colab import files
files.upload() # upload kaggle.json

!pip install kaggle

!mkdir -p ~/.kaggle