Search found 258 matches

by BuddyCasino
Thu Jun 13, 2019 1:19 pm
Forum: Showcase
Topic: ESP32 Webradio
Replies: 187
Views: 88951

Re: ESP32 Webradio

> But all at once in one project?

The BiQuad filter will use the most CPU, but its possible. Jakobsen knows about this. I'm not 100% knwoleadable here, but running a SPI display shouldn't use that many resources either. You can look at microwavemont's fork for that.
by BuddyCasino
Thu Jun 13, 2019 12:04 pm
Forum: Showcase
Topic: ESP32 Webradio
Replies: 187
Views: 88951

Re: ESP32 Webradio

All of those things have been done, so they are possible. With PSRAM you should have no issues with buffer underruns.
by BuddyCasino
Tue Mar 12, 2019 8:56 am
Forum: ESP32 IDF
Topic: I2S microphone (RX)
Replies: 52
Views: 30517

Re: I2S microphone (RX)

Sorry no, I don't have a Lyra.
by BuddyCasino
Fri Jul 20, 2018 11:39 am
Forum: ESP32 ADF
Topic: ESP-ADF Acoustic Echo Cancellation
Replies: 4
Views: 2092

Re: ESP-ADF Acoustic Echo Cancellation

Nice, this will be a useful component!
by BuddyCasino
Fri Jul 20, 2018 11:38 am
Forum: General Discussion
Topic: streaming music from an Android phone via ESP32 to AUX IN
Replies: 13
Views: 6706

Re: streaming music from an Android phone via ESP32 to AUX IN

This has a bluetooth mode out of the box, I'm having it hooked up to an amp right now: https://github.com/MrBuddyCasino/ESP32_MP3_Decoder
by BuddyCasino
Thu Jul 19, 2018 11:01 am
Forum: ESP32 ADF
Topic: ESP-ADF Acoustic Echo Cancellation
Replies: 4
Views: 2092

Re: ESP-ADF Acoustic Echo Cancellation

In case there will be nothing but crickets: the Chromium source contains a C++ echo canceller for WebRTC that is supposed to be good. I don't know if its suitable for embedded usage though.
by BuddyCasino
Tue Jun 26, 2018 1:55 pm
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 296
Views: 80928

Re: What would you like to see in The Next Chip? Rust!

I bet RAM usage would be significantly reduced when using the Rust programming language, combined with a run-to-completion scheduler. Such schedulers lead to significantly better code (no races guaranteed), less overhead and a single stack model (which much reduces RAM usage). Rust also brings bett...
by BuddyCasino
Sat Jun 23, 2018 10:44 am
Forum: ESP32 IDF
Topic: I2S microphone (RX)
Replies: 52
Views: 30517

Re: I2S microphone (RX)

I think the DAC takes unsigned samples, while regular I2S is signed. So you'll need to convert the samples from -32768-32767 to 0-65535. Adding 0x8000 per channel should accomplish that.
by BuddyCasino
Mon May 28, 2018 1:25 pm
Forum: ESP32 IDF
Topic: Description of DMA "sosf" field missing in technical reference manual
Replies: 2
Views: 734

Re: Description of DMA "sosf" field missing in technical reference manual

I don't know what that is, so I searched for "DMA subframe", yet couldn't find a decent explanation. Do you have a link or something?
by BuddyCasino
Thu May 17, 2018 12:38 pm
Forum: ESP32 IDF
Topic: RAM usage for mbedtls
Replies: 21
Views: 6897

Re: RAM usage for mbedtls

That depends on the server you use, of course - nginx, apache, whatever. But OpenSSL only recently added support for that extension, so its possible that yours doesn't support it yet.

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