update the todo file with some messy french stuff

I found a tuto with the streaming way to performe cover song identification.
I also add a way to download some sound with youtube dl.
to download musique now just type:

youtube-dl --config-location config_youtube-dl

.gitignore

@@ -1 +1,2 @@
 *.sw*
+*.mp3

config_youtube-dl

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+--batch-file song_to_test
+--no-overwrites
+--continue
+--extract-audio
+--audio-format mp3
+-o ./audio/%(title)s.%(ext)s

cover_song_identification.py

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+## tutorial from: https://essentia.upf.edu/essentia_python_examples.html
+#
+##Cover song identification (CSI) in MIR is a task of identifying when two musical recordings are derived from the same music composition. The cover of a song can be drastically different from the original recording. It can change key, tempo, instrumentation, musical structure or order, etc.
+##
+##Essentia provides open-source implmentation of some state-of-the-art cover song identification algorithms. The following process-chain is required to use this CSI algorithms.
+##
+##    Tonal feature extraction. Mostly used by chroma features. Here we use HPCP.
+##
+##    Post-processing of the features to achieve invariance (eg. key) [3].
+##
+##    Cross similarity matrix computation ([1] or [2]).
+##
+##    Local sub-sequence alignment to compute the pairwise cover song similarity distance [1].
+##
+##In this tutorial, we use HPCP, ChromaCrossSimilarity and CoverSongSimilarity algorithms from essentia.
+
+import essentia.standard as estd
+from essentia.pytools.spectral import hpcpgram
+
+import IPython
+
+yesterday_original = 'audio/Yesterday (Remastered 2009).mp3'
+yesterday_cover_01 = 'audio/Yesterday - The Beatles - Connie Talbot (Cover).mp3'
+different_song = 'audio/Jacques Brel - Ne Me Quitte Pas.mp3'
+
+IPython.display.Audio(yesterday_original)
+IPython.display.Audio(yesterday_cover_01)
+IPython.display.Audio(different_song)
+
+# query cover song
+original_song = estd.MonoLoader(filename=yesterday_original, sampleRate=32000)()
+
+true_cover_01 = estd.MonoLoader(filename=yesterday_cover_01, sampleRate=32000)()
+
+# wrong match
+false_cover_1 = estd.MonoLoader(filename=different_song, sampleRate=32000)()
+
+## Now let’s compute Harmonic Pitch Class Profile (HPCP) chroma features of these audio signals.
+
+query_hpcp = hpcpgram(original_song, sampleRate=32000)
+
+true_cover_hpcp_1 = hpcpgram(true_cover_01, sampleRate=32000)
+
+false_cover_hpcp = hpcpgram(false_cover_1, sampleRate=32000)
+
+## plotting the hpcp features
+#%matplotlib inline
+import matplotlib.pyplot as plt
+
+fig = plt.gcf()
+fig.set_size_inches(14.5, 4.5)
+
+plt.title("Query song HPCP")
+plt.imshow(query_hpcp[:500].T, aspect='auto', origin='lower', interpolation='none')
+
+## Next steps are done using the essentia ChromaCrossSimilarity function,
+## 
+##     Stacking input features
+## 
+##     Key invariance using Optimal Transposition Index (OTI) [3].
+## 
+##     Compute binary chroma cross similarity using cross recurrent plot as described in [1] or using OTI-based chroma binary method as detailed in [3]
+
+crp = estd.ChromaCrossSimilarity(frameStackSize=9,
+                                 frameStackStride=1,
+                                 binarizePercentile=0.095,
+                                 oti=True)
+
+true_pair_crp_1 = crp(query_hpcp, true_cover_hpcp_1)
+
+fig = plt.gcf()
+fig.set_size_inches(15.5, 5.5)
+
+plt.title('Cross recurrent plot [1]')
+plt.xlabel('Yesterday accapella cover')
+plt.ylabel('Yesterday - The Beatles')
+plt.imshow(true_pair_crp_1, origin='lower')
+
+
+
+
+
+## Compute binary chroma cross similarity using cross recurrent plot of the non-cover pairs
+
+crp = estd.ChromaCrossSimilarity(frameStackSize=9,
+                                 frameStackStride=1,
+                                 binarizePercentile=0.095,
+                                 oti=True)
+
+false_pair_crp = crp(query_hpcp, false_cover_hpcp)
+
+fig = plt.gcf()
+fig.set_size_inches(15.5, 5.5)
+
+plt.title('Cross recurrent plot [1]')
+plt.xlabel('Come together cover - Aerosmith')
+plt.ylabel('Yesterday - The Beatles')
+plt.imshow(false_pair_crp, origin='lower')
+
+
+## Alternatively, you can also use the OTI-based binary similarity method as explained in [2] to compute the cross similarity of two given chroma features.
+
+csm = estd.ChromaCrossSimilarity(frameStackSize=9,
+                                 frameStackStride=1,
+                                 binarizePercentile=0.095,
+                                 oti=True,
+                                 otiBinary=True)
+
+oti_csm = csm(query_hpcp, false_cover_hpcp)
+
+fig = plt.gcf()
+fig.set_size_inches(15.5, 5.5)
+
+plt.title('Cross similarity matrix using OTI binary method [2]')
+plt.xlabel('Come together cover - Aerosmith')
+plt.ylabel('Yesterday - The Beatles')
+plt.imshow(oti_csm, origin='lower')
+
+
+
+
+##     Finally, we compute an asymmetric cover song similarity measure from the pre-computed binary cross simialrity matrix of cover/non-cover pairs using various contraints of smith-waterman sequence alignment algorithm (eg. serra09 or chen17).
+## 
+## Computing cover song similarity distance between ‘Yesterday - accapella cover’ and ‘Yesterday - The Beatles’
+
+score_matrix, distance = estd.CoverSongSimilarity(disOnset=0.5,
+                                                  disExtension=0.5,
+                                                  alignmentType='serra09',
+                                                  distanceType='asymmetric')(true_pair_crp_1)
+
+fig = plt.gcf()
+fig.set_size_inches(15.5, 5.5)
+
+plt.title('Cover song similarity distance: %s' % distance)
+plt.xlabel('Yesterday accapella cover')
+plt.ylabel('Yesterday - The Beatles')
+plt.imshow(score_matrix, origin='lower')
+
+print('Cover song similarity distance: %s' % distance)
+
+## Computing cover song similarity distance between Yesterday - accapella cover and Come Together cover - The Aerosmith.
+
+score_matrix, distance = estd.CoverSongSimilarity(disOnset=0.5,
+                                                  disExtension=0.5,
+                                                  alignmentType='serra09',
+                                                  distanceType='asymmetric')(false_pair_crp)
+
+fig = plt.gcf()
+fig.set_size_inches(15.5, 5.5)
+
+plt.title('Cover song similarity distance: %s' % distance)
+plt.xlabel('Yesterday accapella cover')
+plt.ylabel('Come together cover - Aerosmith')
+plt.imshow(score_matrix, origin='lower')
+
+print('Cover song similarity distance: %s' % distance)

cover_song_stream.py

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+## tutorial from: https://mtg.github.io/essentia-labs/news/2019/09/05/cover-song-similarity/
+
+#################
+# standard part #
+#################
+
+
+import essentia.standard as estd
+from essentia.pytools.spectral import hpcpgram
+
+yesterday_original = 'audio/Yesterday (Remastered 2009).mp3'
+yesterday_cover_01 = 'audio/Yesterday - The Beatles - Connie Talbot (Cover).mp3'
+wrong_song         = 'audio/Jacques Brel - Ne Me Quitte Pas.mp3'
+
+song_reference = yesterday_original	# the original song analysed in normal mode
+song_streaming = wrong_song		# the song get in stream mode to compare to reference
+
+# query cover song
+original_song = estd.MonoLoader(filename=song_reference, sampleRate=32000)()
+## Now let’s compute Harmonic Pitch Class Profile (HPCP) chroma features of these audio signals.
+true_cover_hpcp = hpcpgram(original_song, sampleRate=32000)
+
+
+#################
+# Straming part #
+#################
+
+import essentia.streaming as estr
+from essentia import array, run, Pool
+
+
+# Let's instantiate all the required essentia streaming algorithms
+
+audio = estr.MonoLoader(filename=song_streaming, sampleRate=32000)
+  
+frame_cutter = estr.FrameCutter(frameSize=4096, hopSize=2048)
+
+windowing = estr.Windowing(type="blackmanharris62")
+
+spectrum  = estr.Spectrum();
+
+peak = estr.SpectralPeaks(sampleRate=32000)
+
+whitening = estr.SpectralWhitening(maxFrequency=3500,
+                                sampleRate=32000);
+
+hpcp = estr.HPCP(sampleRate=32000,
+                 minFrequency=100,
+                 maxFrequency=3500,
+                 size=12);
+
+# Create an instance of streaming ChromaCrossSimilarity algorithm
+# With parameter `referenceFeature`, 
+# we can pass the pre-computed reference song chroma features.
+# In this case, we use the pre-computed HPCP feature 
+# of the 'true_cover_song'.
+# With parameter `oti`, we can tranpose the pitch 
+# of the reference song HPCP feature
+# to an given OTI [5] (if it's known before hand).
+# By default we set `oti=0`
+sim_matrix = estr.ChromaCrossSimilarity(
+                referenceFeature=true_cover_hpcp,
+                oti=0)
+
+# Create an instance of the cover song similarity alignment algorithm 
+# 'pipeDistance=True' stdout distance values for each input stream
+alignment = estr.CoverSongSimilarity(pipeDistance=True)
+
+# essentia Pool instance (python dict like object) to aggregrate the outputs  
+pool = Pool()
+
+# Connect all the required algorithms in a essentia streaming network
+# ie., connecting inputs and outputs of the algorithms 
+# in the required workflow and order
+audio.audio >> frame_cutter.signal
+frame_cutter.frame >> windowing.frame
+windowing.frame >> spectrum.frame
+spectrum.spectrum >> peak.spectrum
+spectrum.spectrum >> whitening.spectrum
+peak.magnitudes >> whitening.magnitudes
+peak.frequencies >> whitening.frequencies
+peak.frequencies >> hpcp.frequencies 
+whitening.magnitudes >> hpcp.magnitudes
+hpcp.hpcp >> sim_matrix.queryFeature
+sim_matrix.csm >> alignment.inputArray
+alignment.scoreMatrix >> (pool, 'scoreMatrix')
+alignment.distance >> (pool, 'distance')
+
+# Run the algorithm network
+run(audio)
+# This process will stdout the cover song similarity distance 
+# for every input stream in realtime.
+# It also aggregrates the Smith-Waterman alignment score matrix 
+# and cover song similarity distance for every accumulating 
+# input audio stream in an essentia pool instance (similar to a python dict) 
+# which can be accessed after the end of the stream.
+
+# Now, let's check the final cover song similarity distance value 
+# computed at the last input stream.
+print(pool['distance'][-1])
+

rm_mp3.sh

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+git filter-branch --force --index-filter 'git rm --cached --ignore-unmatch "*.mp3"' --prune-empty --tag-name-filter cat -- --all
+

song_to_test

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+https://www.youtube.com/watch?v=TQemQRL_YVQ # yesterday original
+https://www.youtube.com/watch?v=sGSZA6mYo4c # yesterday cover 1
+https://www.youtube.com/watch?v=Dyjrnxj70dU # yesterday cover 2
+
+https://youtu.be/EzRtlhjyNZM  # gangsta rap
+https://youtu.be/mm_PH5BadTk  # gangsta rap
+
+https://youtu.be/26Nuj6dhte8 # Georges Brassens - La Mauvaise Réputation
+
+https://youtu.be/i2wmKcBm4Ik # Jacques Brel - Ne Me Quitte Pas
+
+https://youtu.be/nUE80DTNxK4 # Barbara - Dis, quand reviendras-tu
+
+https://youtu.be/UGtKGX8B9hU # le cafe - oldelaf _ future shorts

todo

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+Le but c'est d'analyser un flux sonore en temps reel
+afin de determiner le son le plus proche.
+
+* installation
+* trouver les exemple utile
+* annalyser en temps reel sur un flux (micro)
+* distatance / similarite d'un son
+* meme operation sur des fichier fix
+* communication avec osc
+
+###################################################
+Python exemple:
+    * Computing features with MusicExtractor
+    * Beat detection and BPM histogram
+    * Onset detection
+    * Melody detection
+    * Tonality analysis (HPCP, key and scale)
+    * Fingerprinting
+    * Using chromaprints to identify segments in an audio track
+    * Cover Song Identification
+    * Inference with TensorFlow models
+    * Auto-tagging
+    * Transfer learning classifiers
+    * Tempo estimation
+    * Embedding extraction
+    * Extracting embeddings from other models
+
+##################################################
+
+Bon la j'ai choper un exemple qui marche en mode standar.
+Il faudrait que je refasse le meme truc en mode streaming.
+
+Pour ca il faudrait:
+    * une version simplifier du code en question (sans les plt et autre affichage)
+    * comprendre un peu la logique du streaming avec essentia
+    * refaire l'exemple em mode streaming
+
+?? Est-ce que ca va etre rapide a s'execute ??
+
+#################################################
+
+Bon en fait j'ai trouver le code d'exemple don j'ai besoin.
+Ca commence part recuperer en mode standar la description d'un fichier sonore.
+Puis avec un input en mode stream ca compart la distance avec la chansson.
+
+Ce qu'il reste a faire:
+    * avoir un script pour telecharger les musique a tester.
+    * avoir un input type micro
+    * avoir une entree avec jack (jackd)
+    * Faire tourner plusieur processus pour pouvoir annalyser plusieurs track en meme temps.
+    * ET VOILA CA DEVRAIT ETRE BON =)
+
+1) un scritp qui telecharge les son:
+
+J'ai besoin d'un fichier de config qui telecharge les musique en extrayan le son
+et les place dans le bon dossier. Et dans un format que je peut lire avec essentia.
+
+    * avoir un 
+    * 
+    * 
+    * 
+
+Les ellement pour la config:
+
+--config-location PATH               Location of the configuration file;
+                                     either the path to the config or its
+                                     containing directory.
+
+-a, --batch-file FILE                File containing URLs to download ('-'
+                                     for stdin), one URL per line. Lines
+                                     starting with '#', ';' or ']' are
+                                     considered as comments and ignored.
+
+-c, --continue                       Force resume of partially downloaded
+                                     files. By default, youtube-dl will
+  
+
+--encoding ENCODING                  Force the specified encoding
+                                     (experimental)                                   resume downloads if possible.
+
+-x, --extract-audio                  Convert video files to audio-only files
+                                     (requires ffmpeg/avconv and
+                                     ffprobe/avprobe)
+
+--audio-format FORMAT                Specify audio format: "best", "aac",
+                                     "flac", "mp3", "m4a", "opus", "vorbis",
+                                     or "wav"; "best" by default; No effect
+                                     without -x
+
+-w, --no-overwrites                  Do not overwrite files
+
+
+vv -E-X-M-P-L-E- -C-O-N-F-I-G- -F-I-L-E- vv
+
+# Lines starting with # are comments
+
+# Always extract audio
+-x
+
+# Do not copy the mtime
+--no-mtime
+
+# Use this proxy
+--proxy 127.0.0.1:3128
+
+# Save all videos under Movies directory in your home directory
+-o ~/Movies/%(title)s.%(ext)s
+^^ - - - - - - - - - - - - - - - - - - - ^^
+
+to run download:
+$> youtube-dl --config-location config_youtube-dl
+
+Dependance:
+youtube-dl: sudo apt-get install -y ffmpeg