I’m creating an app and I need it to recognize the sound frequencies using the phone’s microphone, like a guitar tuner. Could someone help me solve this problem by creating an extension or letting me know if any kodular components can do this.
Thanks in advance for helping me 
NOTE: I need him to show the frequency of the sound in hertz (Hz), but if he also tells me what musical note that sound represents, it will also help me a lot.
See e.g. here:
Try this:
239C.- Obtener el nivel de sonido del micrófono. VUmeter.
239D.- Obtener la frecuencia de sonido del micrófono. Pitch.
Hi Juan, nice to see you here. I am a big fan of yours.
Thank you very much! You guys helped me a lot. 
Thanks Anke, I have also learned with the answers you give in the discussions.
This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.
Continuing the discussion from Sound Frequency (Hz):
I need an extension that returns the real-time value of the audio frequency received by the microphone… because I found one but it doesn’t seem to work… it doesn’t matter if I have to pay but I need that extension, it’s to do as a kind of tuner, thanks
The extensions are here. Please show your blocks if you find the extension not working, additionally post a link to the extension topic/website.
I already tried to use it in various ways… But even the test app on the extension page doesn’t work… I think the extension doesn’t start… In the sense that the block that starts it doesn’t works