WARNING - This video contains a very bright shirt and may be harmful to your eyes! I'll have to remember not to film wearing that one again, sorry, I didn't realize how intense the color was until UKposts rendered the video. Otherwise, I hope you enjoy the video! Bill

Your videos are so excellent! I tought stuff like this for 20years and was losing interest, but after seen the qualty and content of your videos and teaching methods I am back at experimenting. Love it! thanks!

You are setting the standard for excellence in tutorial videos; on UKposts and elsewhere! Well done! The content is very interesting and useful. Thank you so much!

I always wanted to learn about I2S and here is all in one theoretical / practical tutorial !!. Thank you for your awesome work.

This is an amazing channel. One of the few with thorough explanations for people like me with no background in electronics but eager to learn and hopefully complete some projects.

WOW! Sir, with this one you simply have over excelled yourself. I have been craving this tutorial. And it covers everything. Thank you and be blessed.

Thank you so much for this video, I just spent literally hours trying to navigate the world of I2S libraries to try and get a simple microphone + speaker to work. This video helped so much for the background knowledge and hopefully I'll be able to figure it out now 🙏

Cool tutorial. Great to hear someone knowledgeable on this weird protocol.

What a clear en extended explanation of this subject. Thanks !

Excellent video Bill! Didn’t notice the shirt until I read your comment ! Copy write does make it difficult to show how well audio projects work , I see a lot of it with vintage radio channels and they don’t seem to have a problem as long as it is very brief - less than 2 seconds and usually they try to stick to stations that only play instrumental stuff like classical .

You are very pedagogical and yet concise. Very good!

Thank you for more excellent content. I think this channel is amazing and you have quickly become my go to guy when researching my ideas. I'm currently trying to use both ESP32-CAM and Wrover boards to build CCTV cameras for my home and wondering how to record audio with the video. This tutorial though now has me thinking of how I can add some totally custom sound systems to both my bar and my camper van. Thank you so much.

Thank you, Bill! Very informative video, as always. 👍🙂

I really like how you present your projects, I know it's alot of passionate work.

You are awesome sir, i am truely honored to find you. Thank u for all of your perfect tutorials. Love from Iran

Excellent bundle of projects - much appreciated, plus thx for the latest newsletter! 👍 Also, testing internet radios is safer (from copyright hits) tuning into talk stations... but we trust you. 😀

Excellent explanation and demonstration on the I2S protocol with the esp32. I'm planning to make an Internet radio and this is exactly the detailed information I needed, thank you.

Thanks for your dedication to sharing your expertise. Really inspiring!

Thanks for a nice compact tutorial on i2s and internet radio.

Thank you very much!! You are a good teacher. Thank you for sharing your time and knowledge with everyone!!!

Great video. It covered a lot of what I was looking for! Thank you!

Awesome idea! As always a super described tutorial and nice explanation

My favorite area!. Thank you Bill.

Just a note: The wiring diagram for the INMP441 at 13:04 doesn't immediately match the code download on your page: Specifically, GPIO pins 32 and 33 are switched. Easy fix, thanks for the clear explanation.

This was an amazing video! I do have 2 ESP32 modules, each with different pin counts. I haven't even opened them up yet. LOL I will have to get my butt into gear and learn the ESP32. It is so much more powerful than any Arduino board and it seems to be just as easy to use... maybe even easier.

what I like about this channel is the very good explaination from theory to actual. Lot to learn from this channel

Now this is called quality content. Subscribed!

Thanks for letting me know about 0nradio. It was a very good project, thank you for making a decent video about it!

Thanks DroneBot Workshop for your tutorial

clear, concise, thank you!

Awesome work, thanks for sharing!

Bill, thanks for your hard working and good sharing, so many details

Very good tutorial, clear and extended explanation of this subject ! Respect !

Love the esp 32 content!

Your channel is a treasure for me Thank you

You are fantastic! You just opened the door to many ideas for me! Thank you very much!

Very very good video. Great job! Might try to build the internet audio for my grandson.

thank you very much

Very good guide for I2S Thank you

Great video Bill! Going to try an internet radio

Thanks for posting on this topic sir.... I was looking for it 😉😉

simply perfect! Tks

I love your work

Super helpful for my project, thank you!

Thank you too much! despite on my low level in English, i have understood nearly 100 percent, really useful video!

You create great videos. Thanks.

Excellent,as usual 😁👍🏻

Great video, thanks

Hi Bill. Thanks for the great video. You teach better than most people. with all due respect to Andreas, your videos are more comprehensive than his. I think his work should not stop you from doing what you do better. I need to learn how to send audio streaming from one ESP to another through Bluetooth. or ESP now, Would you shed some light on this, please? Thanks

Watching a few months late. Outstanding tutorial as usual!

There is a small mistake at 2:08, I2S works with PCM (pulse code modulation), not pulse width modulation. Love your videos! Thx for this great tutorial.

Thank you , great video

I learned a lot trough this video, thanks so much... You're amazing

Thanks!

Very informative and interesting video. Wonder if there are any good modules that output line level audio signal, to use with external amplifiers.

Thanks! This is perfect! Your videos are so helpful!

Thank you.

Very helpful video 👍

Fantastic!

Great video, ...as always.

Thank you very much I'm just trying it since 2 weeks ago

Very nice video, TNX.

Great tutorials, earned my Sub!

Hi, thank you so much for the excellent video. May you please help me by answering the question below. What are the most common real time examples in which SOC is used as Target ( i.e other peripheral is giving SCK and WS signals ). Would you also please mention the devices which can be used as master. Thank you

Thanks from 🇧🇷

It is absolutely maddening how little you discussed choosing the correct speaker.

Note that some SD card breakout boards do need to be powered with 5v, and have a built-in voltage regulator for 3.3v operation.

Wonderful tutorial. Exactly what I needed. Thank you so much. The only thing I don't understand is the fact that you only seem to own one Micro SD card. 🙂

great Tutorial!! 👍👍

Bill ur awsome .... very well presented....

Excellent explanation as expected. Thanks a lot. Can a robotic project be made using these devices to work on voice commands without depending upon Google home , Alexa and several other 3rd party applications?

Nice info, thanks for sharing :)

Nice video. I have a bunch of things to try now... 😀

Thanks Bill! Did you have a chance to do the experiments on PlatformIO? Just curious about the stability of the library.

very good lesson, God bless..........

Great video and useful for my next project. Although my first try failed due to missing PSRAM. My ESP may not have it . Can I tweak the sketch to use available flash for memory buffering?. Thanks

Thank you for your awesome work. What abour soundtransfer over WiFi, like remote microphone

Good Job, good job, good job...

Thanks for this video. It was helpful. One thing to consider: the Adafruit SD breakout contains a voltage regular to convert 5V to 3.3. You connected the input of this regulator to 3.3V instead of 5V. This (usually?) works because the regulator has a very low voltage drop, but it still has a drop. You will be running the SD card at 3.2 or 3.1V rather than 3.3V. Maybe it is better to connect the SD breakout 5V pin to the ESP32 VIN (5V) rather than the ESP32 3.3V. The SD breakout uses a 4050 hex buffer that is powered from the 3.3V rail. So, it causes the signal outputs to be 3.3V. regardless of the voltage supplied to the SD breakout via its 5V input. This works for 5V systems (e.g. Arduino boards, not ESP32s) because 3.3 is more than 2.5V, and the 4050 tolerates 5V inputs. If for some reason one must drive the SD breakout with 3.3V, I think it would be OK to connect a 3.3 supply to the SD breakout's 3.3V pin. This bypasses the regulator.

Awesome channel!

Thanks for this video. Very intriguing. Where do you get the URL's for the music sources? Thanks!

Legend 🙂👍👌

Hi, Bill great video for audio with ESP 32 as usual. How can I transmit the audio wirelessly to another ESP 32 through blue tooth or Wifi

Very neat video. Im thinning ill put one of these into an old vintage rca radio. Suggestions on power supply?

Merci.

Thanks for the great description of working with audio. It all looks pretty straightforward, but I haven't gotten around to getting any I2S peripherals yet. BTW, I like the looks of those jumper wires you use -- can you tell me where you got them? I also heard about a VS1053 MP3 decoder on another ESP32 channel -- is that similar to what you're using? What are the differences? (It would be handy to have links to the hardware you use accompanying the video.) Thanks!

Hey Nice explanation about I2S and many examples, I tried running in esp-idf, there are errors any changes needed and also I have a esp32 board where mic is embedded so I have to remove only the connections given in code or any other changes is needed

wonderful 10x

I think your SD card got a 5v shot. But thanks for teaching your know how’s about I2s. As always great Video. God Bless

My only complaint is your workshop is too neat and tidy and it puts mine to shame. Although, if mine was that tidy I'd never find anything! Keep up the good work.

Great video, Bill! I'm one of those myriad of other I2S users/makers. But, I chose the Teensy 4.1 for my project, because of it's great Audio library, which was forked by Adafruit on github. Thanks to your great explanation, now I understand why the 2 libraries are incompatible, because of different DIN pin assignments. I'm using the Teensy 4.1 as a waveform synthesizer, outputting 5 discrete signals (X, Y, red, green, & blue) to a laser projector. There is a total of 17 waveforms being generated, including 4 * X/Y pairs for the basic image, 2 pairs for AM pulsing, 2 triples for RGB color modulation, and one for intensity modulation. The waveform generators are pushing the galvos to their 1kHz limits and can be mixed between sine, square, or variable sawtooth waveforms. Each of the image generators have envelopes with commonly controlled ADSR to avoid snapping the galvos while changing preset frequencies and/or waveforms. All of these + mixing gains are controllable via usbMIDI from an Akai APC40 MIDI desk, Cakewalk's DAW, and/or Pure Data's GUI on a 22" touchscreen monitor, for additional controls. Speaking as an old Laserium laserist, I can vouch that the Teensy 4.1's audio library is rivaling the capabilities of their show system, for only ~$100 + ~$850 RGB laser projector + ~$250 MIDI controller. IOW, I have a laser show in my living room for ~ the same price as my 5.2 Polk/Denon sound system. That blows away my previous expectations for any MCU. Can't praise PJRC enough for producing such a great range of products, with great documentation, a node red-like GUI audio design tool, and welcoming support forums. Okay, I'm finished with gushing my joy all over everyone. Only wanted to share my I2S experience. If anyone is interested in the details, our pal Dave, on Notes and Volts has great step by step DIY synth tutorials on YT for both the Teensy and Arduino MCUs. ukposts.info/slow/PL4_gPbvyebyHi4VRZEOG9RKOYq5Hre3a1 😎

Super video lesson. Thank you so much. So for the next step, would you please try to transfer sound (i2s protocol) by radio? 4 different cases possible: 1)Esp32 has built-in wifi/bt module, so its possible to make kind of walkie-talkie through standard protocol. 2) esp-now 3) external radiomodule (barely lora modules fit for streaming signal, but maybe a short audio messages?) otherwise nrf24l01 are good. 4) through the internet server (existing or just a custom homemade server on orange-pi or etc) Would be very helpful. Thanks!

Hi, Good video, but I also know you could use the module's internal bluetooth to play audio?

Since you demonstrated microphone input, and speaker output, one assumes that creating something that will both record and play back sound is possible with an I2S device and the proper modifications, correct? I look forward to playing around with this at some point. It will make a nice addition to my tricorder project.

I love you man

Good video. I want to learn how to have an i2s source sending stereo sound to the esp32 and a decoder playing it back using DMA, at the same time.

I am somewhat sure that the size argument in i2s_read() function is the size in byte(how many bytes you wish to read) and as you are using 16bit samples the bufferLen should be multiplied by 2 or more correctly sizeof(sBuffer[0]). As you used only the bufferLen only half of sBuffer will be filled with samples.

Pls make complete videos on individual video on ,MP3 player with buttons and internet radio with tune option

Mr. Teo Swee Ann (founder and CEO of Espressif) has clarified that the ESP chips must be powered by 3.3v, but the GPIO is both 5v tolerant, and indeed 1.8v responsive!

thanks for your vedio