python 2.7 - How to separate frequency of audiofile -


i want determine frequencies of .mp3 or .wav file , print it

import pyaudio import wave import numpy np  chunk = 2048 wf = wave.open('/home/pi/adhuri.wav', 'rb') swidth = wf.getsampwidth() rate = wf.getframerate() window = np.blackman(chunk) p = pyaudio.pyaudio() stream = p.open(format =             p.get_format_from_width(wf.getsampwidth()),             channels = wf.getnchannels(),             rate = rate,             output = true)  # read data data = wf.readframes(chunk) # play stream , find frequency of each chunk while len(data) == chunk*swidth:     print "ok"     stream.write(data)     indata = np.array(wave.struct.unpack("%dh"%(len(data)/swidth),\                                      data))*window     fftdata=abs(np.fft.rfft(indata))**2     = fftdata[1:].argmax() + 1     if != len(fftdata)-1:         y0,y1,y2 = np.log(fftdata[which-1:which+2:])         x1 = (y2 - y0) * .5 / (2 * y1 - y2 - y0)         thefreq = (which+x1)*rate/chunk         print "the freq %f hz." % (thefreq)     else:         thefreq = which*rate/chunk         print "the freq %f hz." % (thefreq)     # read more data     data = wf.readframes(chunk) if data:     stream.write(data) stream.close() p.terminate()

it not satisfy while len(data) == chunkswidth: , when writing while len(data) != chunkswidth: enters loop , shows error message valueerror: operands not broadcast shapes (4096)(2048) . how solve problem?


Comments

Post a Comment

Popular posts from this blog

Magento/PHP - Get phones on all members in a customer group -

i working on custom magento extension. working around adminhtml part , i've created custom form there. here form code: <?php class vivasindustries_smsnotification_block_adminhtml_sms_sendmass_edit_form extends mage_adminhtml_block_widget_form { public function _preparelayout() { $extensionpath = mage::getmoduledir('js', 'vivasindustries_smsnotification'); $head = $this->getlayout()->getblock('head'); $head->addjs('jquery.js'); $head->addjs('vivas.js'); return parent::_preparelayout(); } protected function _prepareform() { $form = new varien_data_form(array( 'id' => 'edit_form', 'action' => $this->geturl('*/*/save', array('id' => $this->getrequest()->get...
Read more

php - Bypass Geo Redirect for specific directories -

i'm trying bypass redirect specific url within site. wondering if might able help. the code below code use, original urls replaces example.com i'd able access http://example.com/admin without redirect occuring. is there way this, , there way using own ip? function country_geo_redirect() { $country = getenv('http_geoip_country_code'); if ($country == "us" ) { wp_redirect("http://usa.example.com/"); exit; } else if ($country == "gb" ) { wp_redirect("http://uk.example.com/"); exit; } } add_action('init', 'country_geo_redirect'); you can bypass redirection code if server found ip address. if ip address == <my ip address> ' nothing here else country_georedirect() end if
Read more

php - .htaccess mod_rewrite for dynamic url which has domain names -

i want convert url ex:( example.com/link.php?url=facebook.com ) ( example.com/facebook.com.php ) how can using .htaccess. or there other process make job easier ? i tried adding script .htaccess file options +followsymlinks rewriteengine on rewriterule url-(.*)\.htm$ link.php?url=$1 but converting url adding "url-" ( example.com/url-facebook.com.php ) i want remove "url-" , want make ( example.com/facebook.com.php ) rewriteengine on rewritecond %{the_request} ^get.*link\.php\?url\= [nc] rewritecond %{request_uri} !/system/.* [nc] rewriterule (.*?)link\.php\?url\=/*(.*) /$1$2 [r=301,ne,l] not sure how above work edit of used use remove index.php url
Read more