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Liberté, Égalité, Beyoncé

Front-end: http://pzwart3.wdka.hro.nl/~acastro/radio/

Stream: http://pzwart1.wdka.hro.nl:8000/liberte_egalite_beyonce

OLD - needs updating

An interpretation of texts through sound, according to the archive's knowledge on the terms that constitutes the texts

I envision this project to develop into a continuous sound-stream, a sort of internet radio where each sound(-file) matches word from a text. The stream becomes an interpretation of texts through sound.

Map

[ text gathering ]-->(text pool)
		     /
		    /
		   /
[      sound scraping 	]--->(sound and playlist pool)
			           /
				  /
[ sound stream scheduling - liquidsoap] 
		|
		|
[ stream transmission - icecast2]
 |		|	|	
 |		|	|
 |		|	|
listeners listeners listeners

Front-end

http://pzwart3.wdka.hro.nl/~acastro/blind-archive/andre.html

http://pzwart3.wdka.hro.nl/~acastro/cgi-bin/playingnow.html

Currently

Using liquidsoap It plays the role of a radio station manager, deciding when playlists,jingles, etc... are played and send the stream to icecast2

Liquidsoap recipe - in process

Current Development 07/03/2012

At this point of its development the Blind Sound Archive is working by:

Collecting online texts from several sources (through rss-feed) and storing them into a xml file
- the texts sources are organized in several topics (eg: cooking, news, bible, code, science, etc)
- it runs hourly
- script: http://pzwart3.wdka.hro.nl/~acastro/blind-archive/blind-collect-text.py
- text sources database: http://pzwart3.wdka.hro.nl/~acastro/blind-archive/blind-text-sources-X.xml

When the previous process is finished another script begins querying archive.org for the sounds:
- each word from the collected text is subject to a search in the archive
- each of the text's topics has a specific search area in the archive (eg: cooking in 78rpm records, science in ambient music, poetry in spoken-word)
- soundfiles are downloaded and store in the server
- script: http://pzwart3.wdka.hro.nl/~acastro/blind-archive/blind-collect-text.py

Soundfiles are in (in pzwart3) /home/acastro/public_html/blind-archive/sf-archive

2DO:

check if sf are not too long
create a list of the url from which each file is downloaded

process files from 1 topic into a single file: ecasound

create player(html5) to play the soundfiles

The process step-by-step

						
[Player / Front End] < ---------
				\
 				 \
				  \
[Sound Scraper] ----->	{ Sound sequences pool }
	^-----------------
		          \
[Texts spider]	----> { Texts pool }
	^
	|
 topics	---> { topics pool }

1 - Text Search

gathering text sources on various topics

from a pool topics, one in chosen
a spider search for online texts on that topic (7: 1x per weekday) (or 1 per everyday - makes sence for news)
different sources: stackoverflow / stackexchange / news feeds / weather reports / blogs
the text are stored in the texts-pool (xml?)

Tech:
- Spider / rss-feed reader / api
- xml text pool:

<texts>
	<news>
		<day1 date="2012....">
                     <item>blahh blahhh balllahhh</item>
                     <item>blooo bluuu baaoooo</item>
                     <item>cooo cuuu caaoooo</item>  
                </day1>		
		...
	<news/>
</texts>

						


[word-sound search]
    ^
    |
[text feeding] 
    ^
    |
 (text-sources.xml)
    ^
    |
[Text Download]

¿ Scheduling of these cripts ?

Google API http://code.google.com/apis/customsearch/v1/overview.html

2 - Sound Search

finding sounds on archive.org that match the words from the text

for each word of a text a sound is downloaded from archive.org
- words are fed one by one to archive.org's search engine, asking it for audio items tagged under that given term
- search further limited by the collection, so that text/sound-sequences exhibit a more coherent identity and distinguishes themselves from other topics

TEST: 2 Topics: [source:poem collection:music ..:?? ] [source:weather forecast collection:field-recordings?? ] [source:news collectio:spoken word ]

sounds are downloaded and saved in a server directories (date-topic/)
sound directories from a day will deleted after that day

Frequency: the process takes place during the previous day. 1x per day

Tech:
- Python: Text sequencing
- Python: API queries + download - Done

3 - Player/stream

the resulting sound (files) sequences are player

sequences from soundfiles is create (1 topic=1sequence)
- x-fade/cat files http://eca.cx/ecasound/Documentation/examples.html
each sequence-topic last as long as its duration
then player move to next sequence-topic
if all sequences have been played, player goes through them again and again (different order ?) until the 24h of a day have been completed

Tech:
- Liquid Soap
- Icecast

4 - Front End=

Topic being played is displayed
Links to sound sources in archive.org
User can supply more topics
User can comment on the sound??

Tech:
- html
- ...

Searching soundfiles per term 17/02/2012

Feching sound files from archive.org based on search terms

In order to do that I am making 2 API requests:

1 - searching for a given term within mediaType:Audio
- getting the identifier of the first search occurance id_0

2 - requesting details on identifier (id_0)

I use the 2nd (details) API query to look for the containig files.

From this list I get the first ogg (in case ogg files are present)

Downloading soundfile In archive.org files are stored http://www.archive.org/download/ + identifier + filename

12/02/2012 - Latest script

#!/usr/bin/pyhton
import urllib2, urllib, json, re, shutil, datetime, os

#create directroy where sfoundfiles will be saved
dt_obj = datetime.datetime.now()
date_str = dt_obj.strftime("%Y%m%d-%H%M%S")
archive_dir = 'sf-archive-' + date_str
os.makedirs(archive_dir)

sentence = "US President Obama unveils a $3.8 trillion budget, with plans to raise taxes on the wealthy"
sentance_list=re.findall(r"[\w']+|[.,!?;]", sentence) # find words and puctuation and slipt themo list

search_list = []
info_list = [] # Structure: [term, url, num of results ]
download_urls = []

# Results of search tem + mediatype:Audio
for term in sentance_list:	# build info list [ [term, url, response,  num of results], [...], [...] ] 
	results = []
	results.append(term)
	if ('.'in term) or ('?' in term) or ('!' in term):
 		results.append("fullstop")
		results.append("No Url")
		results.append("No Respose")
		results.append("No Results")
		info_list.append(results) # push the results list into the info list
		print 'stop: ' + term		
	elif (','in term) or (';' in term):
		results.append("comma")
		results.append("No Url")
		results.append("No Respose")
		results.append("No Results")
		info_list.append(results) # push the results list into the info list
		print 'comma: '  + term	 
	else:
		print 'word: ' + term
		url = 'http://www.archive.org/advancedsearch.php?q=' + term + '+AND+mediatype:Audio&rows=300&output=json' #api query
		print 'url: '+ url
		results.append(url)
		search = urllib2.urlopen(url)
		search_result = json.load(search)
		response = search_result['response']
		num_results =	response['numFound']
		results.append(response)
		results.append(num_results)
		info_list.append(results) # push the results list into the info list



# go throught the info list, checking if its a punctuation mar, if there are more than 0 search results, and if the item contains ogg files
for info in info_list: # checks the number of results results_list
	url = info[1]
	
	print info[0]
	print info[1]
	print info[3]
	print

	if ('comma' in url):
		download_urls.append('comma')
		print 'comma found'
	elif ('fullstop' in url):
		download_urls.append('fullstop')
	elif num_results < 1:	
		print 'num_results is 0'
	 	print	
		download_urls.append(0)	
				
	else: 
 		done = False 	
 		for n in range(num_results): #loop through the results looking for .ogg and < size limit			
			identifier = info[2]['docs'][n]['identifier']
			print
			print identifier
			format = info[2]['docs'][n]['format'] 

			if "Ogg Vorbis" in format:
				# go to details url								
				details_url = 'http://www.archive.org/details/' + identifier + '&output=json' #details on identifier  http://www.archive.org/details/electroacoustic_music&output=json
				print details_url
				try:				
					details_search = urllib2.urlopen(details_url)
					details_result = json.load(details_search)
					files=details_result['files'].keys() #look at the containig files
									
					for ogg in files:
						#print str(o)			
						if re.search('.ogg$', ogg) or re.search('.OGG$', ogg): #if there are .ogg or .OGG 
							print "ogg found"
							print ogg							
							size =  details_result['files'][ogg]['size']
							print size		
							if int(size) > 1000000:	#check file size
								print "file TOO large"			
							else: 
								print "RIGHT SIZE"
								audio_url = 'http://www.archive.org/download/' + identifier + ogg	
								download_urls.append(audio_url)		
								done = True
								break
				except urllib2.HTTPError:
					print '404'+ details_url	

			if done: 
				break


print download_urls


#silence and punctuation soundfiles - WILL LEAVE THEM OUT FOR NOW - since you don't have it in your machine
#silence = "silences/silence.ogg"
#comma = "silences/comma.ogg"
#fullstop = "silences/fullstop.ogg"

for i, url in enumerate(download_urls): #Download files from url	
	num = '%02d' % (1+(i))
	if url == 0:
		#silence_file = archive_dir+"/"+str(num)+'silence.ogg'
		#shutil.copyfile(silence, silence_file)
	elif url == 'comma':
		#comma_file = archive_dir+"/"+str(num)+'comma.ogg'
		#shutil.copyfile(comma, comma_file)
	elif url == 'fullstop':
		#fullstop_file = archive_dir+"/"+str(num)+'fullstop.ogg'
		#shutil.copyfile(fullstop, fullstop_file)
	else:
		file_name = str(num) + sentance_list[i] + '.ogg'
		print file_name + ' ' + url
		urllib.urlretrieve(url, archive_dir + "/" + file_name)

User:Andre Castro/prototyping/1.2/Archiveorg-seachTerm

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