Search found 85 matches

by Jakobsen
Sat Apr 04, 2020 8:04 pm
Forum: Hardware
Topic: I2S DMA
Replies: 4
Views: 2919

Re: I2S DMA

Missing a lot ...

It is only a couple of lines from a signal generator component.

You can check out the full project from the repo :
https://github.com/jorgenkraghjakobsen/sig_gen.git

/j
by Jakobsen
Fri Apr 03, 2020 7:31 am
Forum: Hardware
Topic: I2S DMA
Replies: 4
Views: 2919

Re: I2S DMA

Hi Small Coke I've done that - It is quite easy just wait for i2s_evt.type == I2S_EVENT_TX_DONE using xQueueReceive(i2s_queue, &i2s_evt, portMAX_DELAY); The queue handle you will get from you driver install setup call i2s_driver_install(0, &i2s_config, 10, &i2s_queue); Let me know if you need more l...
by Jakobsen
Tue Mar 24, 2020 9:22 pm
Forum: ESP-IDF
Topic: Web Socket Server
Replies: 9
Views: 2227

Re: Web Socket Server

No - But
I use it for raw date - amplifier status, audio samples to be displayed on canvas etc. Do not see why it would not work for image data on a specific format as well.
/j
by Jakobsen
Mon Mar 16, 2020 9:32 am
Forum: ESP-IDF
Topic: Send other data during audio streaming
Replies: 1
Views: 703

Re: Send other data during audio streaming

Hi Cao I have successfully setup a SPP link between my phone an ESP32. On this link I do my normal control communication stuff. Volume, UV and amp power mode feedback, DSP control. It is a simple mixup of the A2DP and SPP examples from the Bluetooth classics repo. I have coded my stuff in ESP-IDF no...
by Jakobsen
Sun Mar 15, 2020 9:46 pm
Forum: Showcase
Topic: ESP32 Webradio
Replies: 185
Views: 158948

Re: ESP32 Webradio

Hi
Did you try /esp/esp-idf/examples/bluetooth/bluedroid/classic_bt/a2dp_sink
Very simple and works out of the box.
This project from Buddy works out of the box as well.
/j
by Jakobsen
Mon Mar 09, 2020 3:16 am
Forum: Showcase
Topic: ESP32 Webradio
Replies: 185
Views: 158948

Re: ESP32 Webradio

Hi Akmishra
It is an old project - Not sure it has been maintained vs the new IDFs that has been rolled out. Let me give it a shoot on my setup here - I will let you know. /J
by Jakobsen
Fri Mar 06, 2020 7:38 am
Forum: ESP-ADF
Topic: How to play a beep during MP3 playback?
Replies: 4
Views: 5225

Re: How to play a beep during MP3 playback?

HI Very interesting problem - and I expect that has been just done at application level in many ways. I think this all also call for a best practice one the IDF and the ADF. I my framework (build on IDF) I have inserted a DSP processing task at the last stage prior to sending audio sample off to the...
by Jakobsen
Tue Mar 03, 2020 4:45 pm
Forum: ESP32 Arduino
Topic: A few questions about DSP
Replies: 3
Views: 1861

Re: A few questions about DSP

Hi
Yes just study the Lyra sch - external ADC/DAC only requires 4 x io pins for I2S (Audio) and 2 x io pins for I2C lines (Control).
Rest is free for you
/j
by Jakobsen
Mon Mar 02, 2020 8:57 pm
Forum: ESP32 Arduino
Topic: A few questions about DSP
Replies: 3
Views: 1861

Re: A few questions about DSP

Hi Viomad Yes lots of questions - but with your enthusiastic drive - you just need to get your hands dirty. Get one of the lyra boards they all have external ADC/DAC and get going using one of the examples from the ESP-ADF framework. From there you can think about how to implement your application. ...
by Jakobsen
Mon Feb 24, 2020 9:06 pm
Forum: ESP-IDF
Topic: Using opus decoder with ESP-IDF 4.x
Replies: 7
Views: 2929

Re: Using opus decoder with ESP-IDF 4.x

Hi Dave
I have a working libopus component that I am using in a PoE streaming project running on the WESP32 PoE board.
Let me know if you want a link.
/J

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