Search found 10 matches

by jeffdc1979
Mon Dec 02, 2019 3:56 pm
Forum: ESP32 MDF
Topic: Time Synchronization
Replies: 3
Views: 5244

Re: Time Synchronization

Was this ever posted to github? Can you provide a link to it please?
by jeffdc1979
Thu Oct 25, 2018 4:15 am
Forum: ESP32 ADF
Topic: Audio from play_mp3 example lags behind same mp3 played on PC
Replies: 9
Views: 3402

Re: Audio from play_mp3 example lags behind same mp3 played on PC

I have a recording of the output from the LyraT now and can send you both audio files to compare against in Audacity. You can easily see where the signal starts to diverge from the original mp3. By the end of the 5 minute mp3, the LyraT output is off by almost exactly 1 second when comparing wave pe...
by jeffdc1979
Thu Oct 25, 2018 3:08 am
Forum: ESP32 ADF
Topic: Audio from play_mp3 example lags behind same mp3 played on PC
Replies: 9
Views: 3402

Re: Audio from play_mp3 example lags behind same mp3 played on PC

I do not have a frequency counter or have access to one. Any other suggestions?
by jeffdc1979
Wed Oct 24, 2018 5:09 am
Forum: ESP32 ADF
Topic: Audio from play_mp3 example lags behind same mp3 played on PC
Replies: 9
Views: 3402

Re: Audio from play_mp3 example lags behind same mp3 played on PC

I am going to try your suggestion of recording the output from the lyraT into audacity and examine the wavefront to see when it diverges. It definitely gets worse over time so it's a slow constant desynch
by jeffdc1979
Wed Oct 24, 2018 5:07 am
Forum: ESP32 ADF
Topic: Audio from play_mp3 example lags behind same mp3 played on PC
Replies: 9
Views: 3402

Re: Audio from play_mp3 example lags behind same mp3 played on PC

I did indeed try other encodings and WAV file and they all had the exact same problem. This leads be to believe it's something in the ADF code base. I haven't tried bypassing ADF yet. How can I do that? I can send the mp3 privately if that helps. I am using audacity to test everything vs ADF playback
by jeffdc1979
Tue Oct 23, 2018 5:40 am
Forum: ESP32 ADF
Topic: Audio from play_mp3 example lags behind same mp3 played on PC
Replies: 9
Views: 3402

Re: Audio from play_mp3 example lags behind same mp3 played on PC

Are the clock cycles not running fast enough that the audio codec is unable to keep the correct time for the mp3 exactly as it was exported? I am confused ... I thought the clock on the lyraT was more than fast enough to keep up with streaming the mp3 correctly
by jeffdc1979
Tue Oct 23, 2018 5:29 am
Forum: ESP32 ADF
Topic: Audio from play_mp3 example lags behind same mp3 played on PC
Replies: 9
Views: 3402

Re: Audio from play_mp3 example lags behind same mp3 played on PC

Here it is below .. the only thing that looked suspect to me was the bits being 16 instead of 32 (like my PC tells me they are) ets Jun 8 2016 00:22:57 rst:0x1 (POWERON_RESET),boot:0x3f (SPI_FAST_FLASH_BOOT) flash read err, 1000 ets_main.c 371 ets Jun 8 2016 00:22:57 rst:0x10 (RTCWDT_RTC_RESET),boot...
by jeffdc1979
Mon Oct 22, 2018 2:30 am
Forum: ESP32 ADF
Topic: Audio from play_mp3 example lags behind same mp3 played on PC
Replies: 9
Views: 3402

Audio from play_mp3 example lags behind same mp3 played on PC

When running the play_mp3 example on my LyraT, I am using a 5 minute long mp3 encoded as constant 128kbps bitrate and I am noticing the audio lagging behind the same mp3 being played on my PC. I am running a time-sensitive program that needs the audio to match exactly to the time it was expected to ...
by jeffdc1979
Sat Sep 29, 2018 1:02 am
Forum: ESP32 MDF
Topic: Can we fake esp-mdf root to avoid using a router yet?
Replies: 7
Views: 4052

Re: Can we fake esp-mdf root to avoid using a router yet?

Only mesh devices can join mesh_ap,so there may be other difficulties when you try to do this.
Isn't there android code to interface with the mesh network??? I am confused why you don't think this is possible or difficult?
by jeffdc1979
Tue Sep 25, 2018 2:47 pm
Forum: ESP32 MDF
Topic: Can we fake esp-mdf root to avoid using a router yet?
Replies: 7
Views: 4052

Can we fake esp-mdf root to avoid using a router yet?

I am looking to create a multi-node mesh network that can interface with an android app only and not require the need of a router and IP address. I am hoping to be able to send data directly from the android device to the closest node in the mesh network that can act like a parent or root node to av...

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