我是信号处理的新手（对此事，还有numpy，scipy和matlab）。我正在尝试通过修改以下matlab代码来估计LPC中的元音共振峰：
http://www.mathworks.com/help/signal/ug/formant-estimation-with-lpc-coefficients.html
到目前为止，这是我的代码：
#!/usr/bin/env python
import sys
import numpy
import wave
import math
from scipy.signal import lfilter, hamming
from scikits.talkbox import lpc
"""
Estimate formants using LPC.
"""
def get_formants(file_path):
# Read from file.
spf = wave.open(file_path, 'r') # http://www.linguistics.ucla.edu/people/hayes/103/Charts/VChart/ae.wav
# Get file as numpy array.
x = spf.readframes(-1)
x = numpy.fromstring(x, 'Int16')
# Get Hamming window.
N = len(x)
w = numpy.hamming(N)
# Apply window and high pass filter.
x1 = x * w
x1 = lfilter([1., -0.63], 1, …我有一个.zip文件,想知道其中的文件名.这是代码:
zip_path = glob.glob(path + '/*.zip')[0]
file = open(zip_path, 'r') # opens without error
if zipfile.is_zipfile(file):
print str(file) # prints to console
my_zipfile = zipfile.ZipFile(zip_path) # throws IOError
这是追溯:
<open file u'/Users/me/Documents/project/uploads/assets/peter/offline_message/offline_imgs.zip', mode 'r' at 0x107b2a150>
Traceback (most recent call last):
File "/Users/me/Documents/project/admin_dev/proj_name/views.py", line 1680, in get_dps_app_builder_assets
link_to_assets_zip = zip_dps_app_builder_assets(server_url, app_slug, button_slugs)
File "/Users/me/Documents/project/admin_dev/proj_name/views.py", line 1724, in zip_dps_app_builder_assets
my_zipfile = zipfile.ZipFile(zip_path)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/zipfile.py", line 712, in __init__
self._GetContents()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/zipfile.py", line 746, in _GetContents
self._RealGetContents()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/zipfile.py", line 779, in …我是Django的新手,只是尝试使用ModelForms提交表单来创建一个新事件并将其保存到数据库中.
我试图将行插入三个表:Location,Event(具有location_id FK)和EventSchedule(作为event_id FK).
这是保存表单的方法.调用它时,不会返回任何错误,但新行不会插入到数据库中:
addNewEvent()(在views.py中)
def addNewEvent(self, event_form, location_form, event_sched_form, latitude, longitude):
new_event = event_form.save(commit=False)
new_location = location_form.save(commit=False)
new_event_sched = event_sched_form.save(commit=False)
# set any necessary values and save forms
new_location.latitude = latitude
new_location.longitude = longitude
new_location.save()
new_event.flagged = False
new_event.location = new_location
new_event.save()
new_event_sched.event = new_event
new_event_sched.save()
models.py
class Location(models.Model):
name = models.CharField(max_length=200)
#address = models.CharField(max_length=200)
city = models.CharField(max_length=200)
state_code = models.CharField(max_length=100)
zip = models.CharField(max_length=100, blank=True)
country = models.CharField(max_length=100)
latitude = models.DecimalField(max_digits=9, decimal_places=6)
longitude = models.DecimalField(max_digits=9, decimal_places=6)
class …