 testing hello hello hello how are you i can't hear myself yet what's this weird still stuck on the e g 2 music generation want to probably start from scratch because what we currently have doesn't really work in case we have run bi we have load data let's run this quickly a play g music you have a little structure for now leave the requirements you want to convert frequencies to notes and convert the frequency into a specific note such as printing the musical notes what send to a test y instead of listening to the actual frequencies that can be pretty annoying we want to convert them into musical notes yeah interpolation function sounds legit install it globally as well yeah we don't we are not using any virtual environments so that error should go away replace that from to this era a couple of just a g frequency range send the musical note range isn't just example using option one yeah option one makes more sense if you don't want any super high frequency note scale the g frequencies normally it means that the pitch b doesn't have updated the documentation for the code i apologize for confusion in the previous example the music 21 library doesn't have a direct all pitch names attribute in the pitch block instead we can generate the note frequencies for the entire range of a piano or any other desired range using a different approach let's revise the code to correctly generate all note names within a specific range and perform the frequency mapping this script generates all the notes from a 0 to c8 and uses their frequencies for mapping it also includes scaling of the eeg frequencies to match the musical note frequency range the inter 1d function is set with bounds underscore error equals false and fill underscore value equals extrapolate the handle frequencies outside the predefined range that's avoiding the earlier error the code seemed to be running for a long time without producing anything the issue with the code taking a long time to run without producing output maybe due to the inefficiency in generating all the notes and handling a large array of frequencies to optimize this we can use a more direct approach to map eeg frequencies to musical notes this method involves directly calculating the frequency of each note in the desired range and then performing the mapping right so it produced the output so what if the first frequency say 200 it's a bit odd it's producing uh thought it would just change that one it's producing the same thing repeatedly why when i changed the first frequency in the eg example frequencies it changes all the subsequent noise notes as well not only the first one the behavior you're observing where changing the first frequency in the eg frequencies affects all subsequent notes is due to the scaling factor being recalculated based on the minimum value in the eg frequencies the scaling factor is applied to all eg frequencies so any change in the eg frequencies will influence the scaling and consequently the mapping to musical notes calculates the scaling factor based on the minimum value in eg underscore frequencies this minimum value changes the scaling factor changes affecting how all frequencies are scaled up to musical load range right so if i change something in between say this one to 20 should not change the mean marks and then yeah get them the same and this one changed from c sharp 3 to c sharp 4 and everything else is the remain the same which is great in this version the scaling factor is fixed based on scaling one hertz for frequency of the lowest note a o 27.5 hertz this way changes to individual eg frequencies well only their corresponding musical notes not the entire set now it's probably okay to to the entire set okay i want to apply this yeah let's do this big conversion to music yeah i want to put everything into one file so the loading data where is it a static templates utilities load that load this one because it also has seizures in it and it's that a new file call it api because that's what it should be called yeah one this two for sure a from load data we're using pandas okay that load data is actually working okay okay now this get the eg data it's from somewhere why is it doing that again it is load data convert eg to music let's write the code it's taking the code from avafile why haven't they mean utility we have the index html that looks more or less okay see what it says the script you've provided is part of a flask web application designed to load eg data converted into music and potentially serve it through a web interface your function convert underscore eg underscore underscore music is currently set up to convert a fixed array of eg frequencies into musical notes it looks like it's intended to work with dynamic eg data eventually yeah that's right complete your convert underscore eg underscore underscore music function and integrate it with the rest of your application you need to finish the midi file creation the function currently ends abruptly while setting up a midi file you need to complete the midi file creation by adding notes and then saving the file integrate eg data replace the example eg frequencies with actual data from eg underscore data this will likely involve processing the eg data to extract frequency information suitable for conversion to musical notes if output underscore file underscore path is not provided you might want to generate a default path or store the file in memory for immediate playback or download and so from this point bring musical notes let me just load music to anyone right let's get rid of this cutload copy actually get it from here or let's pop it into so we have two functions so far we have this log database here that looks the cheat channel index to at least turning that i want to take stuff from test midi util and we have music 21 we just install it but we're not using it anymore this function will now create a midi file with the converted musical notes and save it to the specified path if no path is provided it saves the default output dot mid file certainly let's create the complete convert underscore eg underscore underscore music function which will take eg data process it to convert the eg frequencies to musical notes and then create a midi file from these notes the function will utilize the music 21 library for music related operations in the midi util library for creating midi files before you use this function ensure that both music 21 and midi util are installed in your path environment you can install the music pip if they're not already installed it is meant to be a flask application why is it not a flask application okay we can get rid of the get rid of this that's the wrong folder is the main problem well it needs that code at the end it's code at the end what was the most recent flask application the spectrogram go up by if that code need to restructure the whole thing it's need to go at the end right now it runs as a flask application getting an error no such file director what directory issue and it's the index html not found is the just in the data folder and that's correct why do i need those okay where is the html static send templates all that was the problem and that should have worked working again takes forever to change this music doesn't do anything get that web midi deprecated echa used thing that echa to music to this something should happen yeah that's that's what we try to call the function from the root you can call this function from a flask root ideally the one where you handle the conversion process for example if you have a root convert to echa music you can call this function within the roots handler run your flask application run your flask application as you normally would get a 500 error uh to fix okay okay stop the whole thing what's the problem the error message note object has no attribute midi suggests that there's a mistake in our trying to use the music 21 library to convert node names to midi node numbers in music 21 the correct attribute to get the midi number of a node is pitch midi not just midi okay what was changed by generating nothing only one thing was changed just give me dead node labels scan factor in this corrected version the midi node number is obtained using pitch midi on the music 21 node object this should resolve the error you're encountering after making this change try running your flask application again and accessing a convert to music root is that the only change and then obviously we don't want to go to that url want to run everything from the front page the area encountering is related to the midi file add node method which indicates a missing argument the add node method of the midi file class from the midi util library requires specific arguments including the volume let's correct the function call to include all required arguments signature for the add node method is typically here's the corrected part of your convert underscore ega underscore underscore music function where add node is called already handle volume conversion success okay where was it saved right it isn't the main director of the whole project can't play midi files with vlc that's not cool could not decode the format midi file what and paste here that music output in output mid we're joining all those let's run this again and the button doesn't do anything conversion successful right we have the file surprised do we have anything to play with okay how do we guess that's working okay how to play the file in the browser ideally want to play it in the main page serve it by url and embed the player this player can be set up to load the midi file however it's important to note that not all browsers support playing midi files directly in the audio element you may need to convert the midi file to a more widely supported format like mp3 or wav3 embed the player in your main page auto option if you want the music to start playing automatically when the page loads you can add the auto-play tribute to less than audio greater than tag in mind that some browsers restrict auto-play to improve user experience might so turn it off of them if you find that the midi files and play due to browser compatibility issues you're making sure converting it to an mp3 here's a very high level view of how you might do this in python you would then use this mp3 file in the less than audio greater than element instead of the midi file this requires additional dependencies like pydub and might also require ffmpeg or similar tools integrating with flask finally integrate all these steps into your flask application ensuring that your html templates static files and roots are correctly set up to handle the midi file in audio playback in html there's a default it doesn't have an output file path that's okay question is what actually generates in the front midi file yeah kid apcopilot just wouldn't understand it because it doesn't have all the context it seems the html in it templates this one the pattern code you've provided for your flask application includes a back-end setup to process EEG data and convert it into a midi file however this code does not directly involve the front-end generation of a midi file instead the front-end in this case likely a web page rendered by flask would interact with the back-end to trigger the generation of the midi file and then provide a means to play it content interaction the user interacts with the front-end or web page by for example ticking a button or submitting a form this action sends a request to back-end back-end processing your flask back-end the pattern code receives this request it then processes the EEG data and converts it into a midi file as you set up in the convert underscore EEG underscore underscore music function this file is saved on the server in the directory specifying your code yes and yes this pointing to an mp3 we don't want to do a conversion because we might be generating lots of those files as the as we change the input on the front page url4 data file name cooperative path if you use this path it's almost correct it's not in a static folder data music output output mid okay there are a couple of issues first of all the output mid file is not being loaded into the player the player is still just grayed out second of all i want to be able to do everything from the front panel it's not clear when is the output mid is being regenerated addressing your issues requires a two-prong approach ensuring the midi file is loaded correctly into the player and enhancing user interaction to clearly indicate when the output mid file is being regenerated tackle these points separately correct file path and server configuration use flasks url underscore to generate the correct path if the file is located in a static directory example less than source src equals url underscore static file name equals music underscore output mid type equals audio midi greater than ensure the flask app is configured to serve files from a location where output mid is saved try accessing the midi file directly via its url in the browser to ensure it's being served correctly how do i do that okay it's downloading it vlc would not play it you can consider converting the midi file to a more universally supported audio format like mp3 for playback in the browser okay so the midi file is in the correct location i'm able to download it for whatever reason vlc would not play the file now ideally i would like to play the sounds directly in the html as the user changes input so perhaps i should be playing the notes midi notes directly in the browser that's why i don't want to convert it into another file format because the speed might be reduced if you're able to download the midi file correctly but vlc won't play it the issue might be with the file itself or vlc's midi playback capabilities however if your primary goal is to play the sound directly in the browser as the user changes inputs you have a few options since you're interested in playing notes dynamically in response to user input instead of using the web audio api a powerful tool for audio processing and synthesis in web applications this approach involves generating audio directly in the browser allowing for real-time interaction and avoiding the need to generate and download midi file so that sounds good here's a basic outline of how you could use the web audio api create an audio context initialize an audio context for audio processing generate oscillators for sound use oscillators to generate sound waves you can control properties like frequency wave form etc based on oeg data play poor sounds trigger these oscillators based on user interactions allowing you to play sounds corresponding to the eeg input data yet those oscillators are normally horrible they're just playing uh sinusoid frequency note actual notes musical notes if you want to stick with midi files due to their specific representation of oeg data consider using a javascript library that can handle midi playback in a browser libraries like midi player js or ten js can pass midi files and play them using either web audio api or oblin synths although you mentioned concerns about speed converting midi to mp3 or another widely supported audio format is a viable option especially if you pre-generate these files the conversion process might add some delay but it will significantly improve compatibility across all browsers and eliminate the need for external plugins or specific browser configurations frontend interaction adjust your javascript to handle user inputs like eeg data changes and trigger the appropriate audio response dynamic audio playback whether you use oscillators or a midi playback library bind these audio actions to the user interactions in your application you create the basic oscillators in the web audio api typically generate simple waveforms like sine square sort of or triangle waves which might not have the musical quality of instruments in a midi file however there are ways to enhance the sound to make it more musically appealing and nuanced one use advanced web audio api features envelopes apply adsr attack decay sustain release envelopes to your oscillator sounds this can greatly enhance the dynamics of the sound making it more natural and similar to how musical instruments behave filters use filters like low pass high pass etc to shape the sound this can help create more varied and interesting timbers in nodes control the volume of your sounds dynamically with gain nodes combining oscillators there are multiple oscillators with different frequencies waveforms and de-shinnings to create richer more complex sounds two use sample based synthesis audio samples instead of generating sounds purely with oscillators you can use pre-recorded audio samples of real instruments the web audio api allows you to play back these samples and manipulate them in real time sound funds there are libraries and tools that use sound funds elections of audio samples for different notes and instruments in a browser providing a way to have midi like instrument sounds three javascript libraries for more musical sounds tone js this library is built on top of the web audio api and provides more advanced features for music creation including instruments effects and sequencing it can help in creating more musical sounds it is easier to work with than the raw web audio api but sagado js another library that simplifies using the web audio api offering various effects sound synthesis methods and easy to use interfaces tone js this library is built on top of the web audio api and provides more advanced features for music creation including instruments effects and sequence it can help in creating more musical sounds it is easier to work with within the raw Web Audio API. Sounds like we need to use Tone.js instead. How difficult would it be to modify the code from Web MIDI to Tone.js? Switching from Web MIDI, JS to Tone. JS for more musical and nuanced sound generation is a significant shift, as these libraries serve different purposes. Web MIDI, JS is primarily used for sending and receiving MIDI messages to MIDI devices. Whereas Tone.js is an extensive library for creating, manipulating, and playing sounds and music directly in the browser using the Web Audio API. The complexity of transitioning to Tone.js will depend on how deeply integrated Web MIDI. JS is in your application and what features you are using. If you're starting from scratch with audio synthesis and having deeply embedded MIDI interactions in your app, the shift library will be straightforward. First, include Tone.js in your project. You can add a virus group tag in your HTML. With Tone.js, you can create synthesizers, load samples, and control audio player. Here's an example of creating a simple synthesizer on playing a note. Identify the parts of your code where you're using Web MIDI. JS and determine what the equivalence would be in Tone.js. Playing notes, replace MIDI note on, off-commands with Tone. JS synthesizer or sampler trigger, dynamic interaction. If you have dynamic MIDI interactions, like changing instruments or responding to MIDI input, consider how these will translate into Web Audio API actions using Tone.js. Four, mapping EEG data to musical parameters. With Tone.js, you have a wide range of musical parameters to map your EEG data to. You can control pitch, duration, timbre, dynamics, and apply effect. Decide how you will map your EEG data to these parameters. Five, advanced features, explore Tone. JS's advanced features like sequencing, effects, and more complex synthesizers if your application requires them. Example, dynamic sound generation based on EEG data. Here's a more specific example of how you might use Tone. JS degenerates sound based on EEG data. In this example, map EEG value to frequency as a placeholder for your logic to convert EEG data to a frequency value. Yes, I'm mostly having lots of trouble with MIDI files and won't load into this player first. If generation is okay, I won't be able, wasn't even able to listen to it in VLC, would not work as well. Pretty annoying. Getting this error message. Codec, not supported, could convert a MIDI into mp3. Okay, if we keep the current code, how to convert the MIDI file into mp3? Adding a MIDI file to an mp3 file involves a process that typically can be done directly in a browser or a simple Flask app as it requires synthesizing MIDI instructions into actual audio. This process is usually done on a server or with specialized software. Here's an overview of how you can achieve this. Yes, we would like to do it within Python. If you prefer to keep everything in Python, you might explore libraries like MIDI 2 Audio for MIDI to WavConversion and PyDub for Wav to mp3 conversion. However, we still rely on external dependencies like FluidSynth and FFMake. Yes, we would like to be using Python, how to change my code. To integrate MIDI to mp3 conversion into your Python Flask app, you need to use Python libraries that can handle the conversion. As mentioned earlier, MIDI to Audio is a good option for converting MIDI to Wav and PyDub can be used for converting Wav to mp3. First, ensure you have the necessary dependencies installed. Install FluidSynth. FluidSynth is a software synthesizer that converts MIDI to audio. It's used by MIDI to audio. Why can't I just use the Python packages alone? So Python can't do it then, so why are you? Isn't you need to install additional software like FluidSynth and FFMake alongside the Python packages is due to the nature of audio processing tasks they perform, which would be on the scope of simple Python package capabilities. Here's a breakdown of why these installations are necessary. Purpose, FluidSynth is a real-time software synthesizer based on sound font two specifications. It's used to convert MIDI files, which are essentially digital sheet music into audible sound, Wav files. Why Python alone isn't enough? The conversion of MIDI to Audio is a complex process that requires a sound synthesis engine, something that is not typically included in Python standard library or simple packages. FluidSynth is a specialized, optimized software for its purpose. Because that's also why VLC cannot play MIDI files? Yes, the reason VLC media player might struggle with playing MIDI files directly is related to the nature of MIDI files themselves and how media players interpret them. MIDI, musical instrument, digital interface, files don't contain actual audio data. Instead, they contain digital instructions for music creation, like which notes are played, with what instrument, for how long, and of what volume. To convert these instructions into audible sound, the software synthesizer or sound font is required. So I thought they built the browser. Yeah, I don't have a sound font. You just get a sound font from somewhere. That's what the original told me to do, but I was struggling to find one that will work. There are JavaScript libraries, such as MIDI Player.js and Tone.js that can pass MIDI files and play them in the browser using the Web Audio API. These libraries effectively add MIDI playback capability to web applications but requires some setup and programming. It's the one I was trying to use, but that also didn't work. That didn't work. Okay, I will continue this next time. Thank you for watching. I will be able to decode the algorithm. You know what to do. See you later. Bye.