I am trying to perform STFT on a bunch of sound files and I get this error.
The path of the files which I am trying to perform STFT is correct but still, I get this error.
import librosa
import io
import numpy as np
import tensorflow as tf
import os
import glob
path_te = "C:\Users\aanum\OneDrive\Documents\Deep Learning\timit-homework\te"
files = os.listdir(path_te)
for file in sorted(files):
if file.startswith("tex"):
file_path = path_te2 + "/" + file
#file_path = 'r' + "'" + str(file_path) + "'"
print(file_path)
st, sr=librosa.load(file_path, sr=None)
Output:
C:/Users/aanum/OneDrive/Documents/Deep Learning/timit-homework/te/tex0000.wav
---------------------------------------------------------------------------
NoBackendError Traceback (most recent call last)
<ipython-input-54-4df25548d204> in <module>
7 #file_path = 'r' + "'" + str(file_path) + "'"
8 print(file_path)
----> 9 st, sr=librosa.load(file_path, sr=None)
10 X=librosa.stft(st, n_fft=1024, hop_length=512)
11 X_abs = abs(X)
~\Anaconda3\envs\DeepLearning\lib\site-packages\librosa\core\audio.py in load(path, sr, mono, offset, duration, dtype, res_type)
117
118 y = []
--> 119 with audioread.audio_open(os.path.realpath(path)) as input_file:
120 sr_native = input_file.samplerate
121 n_channels = input_file.channels
~\Anaconda3\envs\DeepLearning\lib\site-packages\audioread\__init__.py in audio_open(path, backends)
114
115 # All backends failed!
--> 116 raise NoBackendError()
NoBackendError
Can anyone tell me why I have this error?
Make sure that your .wav file is not corrupted. Can you open the file with an audio file reader (which can read wav files)? If not, your file is corrupted. If you downloaded the audio files from an opensource dataset, it is possible that they are corrupted while you are manually unzipping the folder. I'd recommend you download the dataset again and unzip it with a command-line tool.
This error can occur when Librosa cannot load the file, mainly because librosa cannot read the file format (for example mp3 format) and it tries to look for other backends like ffmpeg. So, installing ffmpeg may help in resolving this problem. Also, depending on the OS you use, you may have to add ffmpeg to the OS path in some cases. If the issue is in fact due to the file format, proper installation of ffmpeg may resolve the issue.
Right after you write the line:
import usb.core
you need to write
import usb.backend.libusb1
I hope this helped you, tell me if it doesn't work!
Related
I am getting my form data from frontend and reading it using fast api as shown below:
#app.post("/file_upload")
async def upload_file(pdf: UploadFile = File(...)):
print("Content = ",pdf.content_type,pdf.filename,pdf.spool_max_size)
return {"filename": "Succcess"}
Now what I need to do is extract hyperlinks from these spool Files with the help of pypdfextractor as shown below:
import pdfx
from os.path import exists
from config import availableUris
def getHrefsFromPDF(pdfPath:str)->dict:
if not(exists(pdfPath)):
raise FileNotFoundError("PDF File not Found")
pdf = pdfx.PDFx(pdfPath)
return pdf.get_references_as_dict().get('url',[])
But I am not sure how to convert spool file (Received from FAST API) to pdfx readable file format.
Additionally, I also tried to study the bytes that come out of the file. When I try to do this:
data = await pdf.read()
data type shows as : bytes when I try to convert it using str function it gives a unicoded encoded string which is totally a gibberish to me, I also tried to decode using "utf-8" which throws UnicodeDecodeError.
fastapi gives you a SpooledTemporaryFile. You may be able to use that file object directly if there is some api in pdfx which will work on a File() object rather than a str representing a path (!). Otherwise make a new temporary file on disk and work with that:
from tempfile import TemporaryDirectory
from pathlib import Path
import pdfx
#app.post("/file_upload")
async def upload_file(pdf: UploadFile = File(...)):
with TemporaryDirectory() as d: #Adding the file into a temporary storage for re-reading purposes
tmpf = Path(d) / "pdf.pdf"
with tmpf.open("wb") as f:
f.write(pdf.read())
p = pdfx.PDFX(str(tmpf))
...
It may be that pdfx.PDFX will take a Path object. I'll update this answer if so. I've kept the read-write loop synchronous for ease, but you can make it asynchronous if there is a reason to do so.
Note that it would be better to find a way of doing this with the SpooledTemporaryFile.
As to your data showing as bytes: well, pdfs are (basically) binary files: what did you expect?
I am on a Mac with OS 10.11.6, and I'm learning the notebook interface for Sage 7.2. As a start, in a Sage worksheet I created a .txt file containing the string [1, 2, 3] and saved it. I can open the text file directly and verify its contents just by clicking on it, but I can't yet do this in Sage.
I'd like to be able to open it and convert the string to a usable Sage object. I'd appreciate explicit instructions, assuming nothing at all about my Sage background. Thank you.
Note: The procedure to do what I just asked in the Sage documentation under "Saving and Loading Individual Objects" doesn't work in my environment (specs above.) I do A = [1, 2, 3]. Then I do save(A, 'A') and Sage returns a hot link for A.sobj. Then I hit the save-and-quit button. Then I hit "sign out." Then I sign back in and go to the worksheet where I did the steps I just described. I do A = load('A'). This is what Sage says:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "_sage_input_3.py", line 10, in <module>
exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8 -*-\\n" + _support_.preparse_worksheet_cell(base64.b64decode("QSA9IGxvYWQoJ0EnKQ=="),globals())+"\\n"); execfile(os.path.abspath("___code___.py"))
File "", line 1, in <module>
File "/private/var/folders/7n/t9k4hfyn44s2qp7wxt479kn80000gn/T/tmpEa1OkK/___code___.py", line 2, in <module>
exec compile(u"A = load('A')" + '\n', '', 'single')
File "", line 1, in <module>
File "sage/structure/sage_object.pyx", line 1032, in sage.structure.sage_object.load (build/cythonized/sage/structure/sage_object.c:11594)
IOError: [Errno 2] No such file or directory: 'A.sobj'`
I found an answer in Finch's book. First a quote:
“We used a module called os from the Python standard library module to help us write code that can run on multiple platforms. A text file must have a special character to denote the end of each line in the file. Unfortunately, for historical reasons, each family of operating systems (Mac, Windows, and UNIX) uses a different end-of-line character. The os module has a constant called linesep that contains the correct character for the platform that the code is run on. We used the statement import os to make the module available, and accessed the constant using the syntax os.linesep. We also used the function os.path.join to join the path to the file name with the correct character for the current operating system.”
Excerpt From: Craig Finch. “Sage Beginner's Guide.”
Example using a file named "File2.txt" containing a single text character, '1':
import os path='/Users/barrybrent/.sage/sage_notebook.sagenb/home/store/2/21/212/2123/admin/19/data/' fileName='File2.txt' times = [] text_file = open(os.path.join(path, fileName), 'r') line = text_file.readline()
(Comment: is just a character string. To convert it a Sage object useful in computations:)
elements=line.split(',') times.append(float(elements[0].strip()))
(Comment: evaluate:)
times[0]
(Comment: Sage says"1.0". Now can we do arithmetic with times[0]?)
times[0]+1
Sage says "2.0"
enter code here
# -*- coding: utf-8 -*-
import math
import matplotlib
matplotlib.use("Agg")
import matplotlib.pyplot as plt
import matplotlib.animation as animation
fig1=plt.figure()
ax=plt.axes(xlim=(-10,10), ylim=(-10,10))
line,=ax.plot([],[],lw=1)
"""def init ():
line.set_data([],[])
return line,"""
dt=0.001
X=[]
Y=[]
r=float(input("Enter the radius :: "))
w=float(input("Enter angular frequency :: "))
def run(data):
t=0
while w*t<=2*math.pi:
x=r*math.cos(w*t)
y=r*math.sin(w*t)
X.append(x)
Y.append(y)
t=t+dt
line.set_data(X,Y)
return line,
line,=ax.plot(X,Y,lw=2)
FFMpegWriter = animation.writers['ffmpeg']
writer = FFMpegWriter(fps=15, metadata=dict(artist='Me'), bitrate=1800)
anim=animation.FuncAnimation(fig1,run,frames=200,interval=20,blit=True)
anim.save('amim.mp4',writer=writer)
The error message shown is ::
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/tathagata/anaconda3/lib/python3.4/site- packages/spyderlib/widgets/externalshell/sitecustomize.py", line 685, in runfile
execfile(filename, namespace)
File "/home/tathagata/anaconda3/lib/python3.4/site- packages/spyderlib/widgets/externalshell/sitecustomize.py", line 85, in execfile
exec(compile(open(filename, 'rb').read(), filename, 'exec'), namespace)
File "/home/tathagata/Documents/Python scripts/circleamim.py", line 35, in <module>
FFMpegWriter = animation.writers['ffmpeg']
File "/home/tathagata/anaconda3/lib/python3.4/site-packages/matplotlib/animation.py", line 81, in __getitem__
return self.avail[name]
KeyError: 'ffmpeg'
I use anacoda distribution and SPYDER as my IDE. I have seen the many solutions related to key errors. But the movie wont run. How can I make the movie to run? I hope there are no other logical errors.
First install ffmpeg and add path to ffmpeg
# on windows
plt.rcParams['animation.ffmpeg_path'] = 'C:\\ffmpeg\\bin\\ffmpeg.exe'
# on linux
plt.rcParams['animation.ffmpeg_path'] = u'/home/username/anaconda/envs/env_name/bin/ffmpeg'
Note for linux users: The path for ffmpeg can be found by simply using which: which ffmpeg
Also instead of
FFMpegWriter = animation.writers['ffmpeg']
writer = FFMpegWriter(fps=15, metadata=dict(artist='Me'), bitrate=1800)
I just used writer = animation.FFMpegWriter()
It seems that ffmpegis not installed on your system. Try the following code:
import matplotlib.animation as animation
print(animation.writers.list())
It will print out a list of all available MovieWriters. If ffmpegis not among it, you need to install it first from the ffmpeg homepage.
If you have Homebrew, literally just run the command
brew install ffmpeg
And Homebrew will take care of the rest (dependencies, etc). If you don't, I would recommend getting Homebrew or something like it (apt-get on Linux is built in, or an alternative on OS X would be Macports)
I have also posed with same problem(keyError: 'ffmpeg') but instead of using anakonda, I used IDLE3. So, first i checked for 'ffmpeg' in terminal it wasn't installed so installed it.
Using: sudo apt install ffmpeg
and when I run my save_animation program, it worked generating animation files in '.mpeg' format.
I've got a file called hello.txt in the local directory along side the test.py, which contains this Python 3.4 code:
import easywebdav
webdav = easywebdav.connect('192.168.1.6', username='myUser', password='myPasswd', protocol='http', port=80)
srcDir = "myDir"
webdav.mkdir(srcDir)
webdav.upload("hello.txt", srcDir)
When I run this I get this:
Traceback (most recent call last):
File "./test.py", line 196, in <module>
webdav.upload("hello.txt", srcDir)
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/easywebdav/client.py", line 153, in upload
if isinstance(local_path_or_fileobj, basestring):
NameError: name 'basestring' is not defined
Googling this results in several hits, all of which point to the same fix which, in case the paths moved in future, is to include "right after import types":
try:
unicode = unicode
except NameError:
# 'unicode' is undefined, must be Python 3
str = str
unicode = str
bytes = bytes
basestring = (str,bytes)
else:
# 'unicode' exists, must be Python 2
str = str
unicode = unicode
bytes = str
basestring = basestring
I wasn't using import types, but to include it or not doesn't appear to make a difference in PyDev - I get an error either way. The line which causes an error is:
unicode = unicode
saying, 'undefined variable'.
OK my python knowledge falters at this point and I've looked for similar posts on this site and not found one specific enough to basestring that I understand to help. I know I need to specify basestring but I don't know how to. Would anyone be charitable enough to point me in the right direction?
You can change easywebdav's client.py file like the top two changes in this checkin: https://github.com/hhaderer/easywebdav/commit/983ced508751788434c97b43586a68101eaee67b
The changes consist in replacing basestring by str in client.py.
I came up with an elegant pattern that does not require modification of any source files. Please note it might be extended for other modules to keep all 'hacks' in one place:
# py3ports.py
import easywebdav.client
easywebdav.basestring = str
easywebdav.client.basestring = str
# mylib.py
from py3ports import easywebdav
I have a program (not mine - downloaded from i-net) made on ATI streams (more accurate - on brook lang - file is *.br). There is a python script (see below), that compiles it into *.il file using brook compiler, provided by ATI streams SDK. After it script zips it into *.Z file. C-program's Makefile contains this code
my_kernel_dp11.o: my_kernel_dp11.Z
ld -s -r -o my_kernel_dp11.o -b binary my_kernel_dp11.Z
and then it linked to main executed file.
Data from that obj-file read by C-program into some buffer and then called calclCompile function (as I understand it's OpenCL func).
It works fine at AMD HD 6970-series, but failed at AMD HD 7970-series with following error
Unsupported program construct detected in back-end
Here is a python script
#!/usr/bin/python
import sys
import zlib
import os
def makebrz(dp_bits):
try:
os.unlink("a_slice_dpX_a_slicer.il")
except OSError:
pass
dpdefs=""
for i in range(dp_bits-11):
dpdefs = dpdefs + " -D DP_BIT_%i" % (i+12,)
print "DP_DEFS: ", dpdefs
os.system("/usr/local/atibrook/sdk/bin/brcc -k -pp %s a_slice_dpX.br" % (dpdefs,) )
f = open("a_slice_dpX_a_slicer.il")
if f==None:
print "Could not read ", sys.argv[1]
sys.exit(-1)
data = f.read()
f.close()
oname = "../my_kernel_dp%i.Z" % (dp_bits,)
data2 = zlib.compress(data)
fo = open( oname, "wb" )
fo.write(data2)
fo.close()
#os.system("ld -s -r -o ../%s.o -b binary %s" % (oname[:-2],oname))
makebrz(11)
makebrz(12)
makebrz(13)
makebrz(14)
And here is a program http://dl.dropbox.com/u/46469564/a_slice_dpX.br
The question is: what should I do to make it program "supported" ?
P.S. There is one problem - I don't know this technology (brook, ATI streams, OpenCL) at all. That's why advice like "you should try this or that" are useless. I need particular action to do - change this and you'll have a success :)
Thank you.
AFAIK Radeon HD7970 is built on GCN architecture, so if you are using brook to generate IL code, JIT in southern island may not know how to generate proper ISA for the h/w you are using,so if you would like continue using brook+ then you need to wait till an updated version of Brook+ gets released on sourceforge which can generate an IL which gets converted to right ISA(GCN).
Other option is to use AMD APP SDK 2.6 and rewrite your code in OpenCL.