search

pschatzmann / arduino-audio-tools

Arduino Audio Tools (a powerful Audio library not only for Arduino)
GNU General Public License v3.0
1.46k stars 227 forks source link

I2SStream does not name a type. #1230

Closed poetaster closed 8 months ago

poetaster commented 8 months ago

Problem Description

The compiler is not including / seeing I2SStream ?

Device Description

Arduino Nano, PT8211, VS1053 (etc).

Sketch

streams-generator-i2s example sketch.

Other Steps to Reproduce

I also read through the AudioConfig.h file for hints and have the feeling you just don't support

What is your development environment

Arduino 1.8.12

I have checked existing issues, discussions and online documentation

pschatzmann commented 8 months ago

The Arduino Nano is not rally suited for audio processing

Your only chance is to use it together with VS1053, so that the only thing it needs to do is to copy data..

poetaster commented 8 months ago

Well, I use it all the time: https://github.com/poetaster/rampart but it certainly isn't ideal. I'm doing I2S via wire/spi using VS1003/VS1053 in DAC mode, which works quite well with the nano. But I wanted to try your library. I'm assuming it's not compiling because it detects 'no I2S'?

For high end stuff I use Ksoloti ( rebirth of Axoloti). There, I often find that I've underutilized which is expensive (I have two axolotis and two Ksolotis). https://github.com/ksoloti/ksoloti , perhaps it's of interest to you.

Which board ( < 20 Euros) would you recomend? Aside from the ones in the wiki? Thanks for your feedback!

poetaster commented 8 months ago

Oh, just found a NodeMCU ESP8266 in a box. Is that appropriate for testing your library?

pschatzmann commented 8 months ago

Not sure about the limitations: I did only some minimum testing with the ESP8266...

You can't use any examples which use classes that are not available for your processor. If you have an I2SStream using a nano, you will get compile errors, because the class does not exist but a PWMStream should work if you keep the sample rate low enough.

The VS1003 examples can be found here, but they will not work with the Nano because they will not fit into the memory. But they should work e.g. with a Uno R4.

I am usually working with an ESP32 based AudioKit. So any ESP32 based solution provides the maximum of functionality. A RP2040 should work for most of the cases as well....

poetaster commented 8 months ago

Thanks very much for the responses. The ESP8266 doesn't have enough ADC, so it's out. I found RP2040s are very affordable, so that may be my goto for 'simple things'.

I just noticed that I can get the VS1003 (not the 1053) into dac mode, but can not load mozzi, so, as you suggest, memory is too constrained. I noticed that your VS1053Stream.h class does not seem to rely on the dac mode user program. I think I need to read up on the 1053 some more.

Thanks again for your efforts.

pschatzmann commented 8 months ago

The VS1053Stream just automatically adds a wav header when you send pcm data. This was quite easy to implement with my available functionality.

The ESP32 supports up to 18 measurement channels which should be more then enough!

mkoenings commented 8 months ago

we are also testing the Pico, for Audio Input and output ( connected wirelessly, with nrf24). For the audio input, we are trying the WM8960 ( Just because I had one available) but I can't make it work, the I2S only returns random garbage values. If somebody wants to try: The I2C lines need pullup resistors ( and maybe also short wires as Phil mentioned in his blog post). It worked for me with 1.5k. Which ADC chip would you recommend instead? We need line-in, 32khz, 16bit Mono. I ordered the es8388 boards from India, because we had good results with the LyraT boards, that carry this chip. Any other recommendations ? I have a V1053, and also a teensy audio Board. The Teensy board (SGTL5000) works fine ( on a Teensy) but I dont know how to use it (witout the teensy audio lib) in this szenario: a Pico with my favorite audio library.. ;-) . Thanks.

poetaster commented 8 months ago

The VS1053Stream just automatically adds a wav header when you send pcm data. This was quite easy to implement with my available functionality.

Ah, duh! Why didn't I think of that :) The chip tends to be in mp3 decoder mode by default but supports a bunch of formats. Sigh. Thanks!

The ESP32 supports up to 18 measurement channels which should be more then enough!

Ok, I'll have to read the spec again, but the nodemcu I have only has one analog channel. I usually need at least four (potentiometers). It could work for other projects. Thanks again!