For the moment, Squeezelite is very confidential in the project.
But here you know there is an ESP32 in the enclosure. And that it can do much more than Bluetooth :)
But here you know there is an ESP32 in the enclosure. And that it can do much more than Bluetooth :)
the board inside use a TAS5711. It's a 20W amplifier and 2.1
with a 3D printer you can really tweak this
I'm having a real hard time using the esp32 as a bluetooth source, it's not connecting to the BT speaker
you should think of buying a cheap DAC and go wired instead
that being said, you can activate telet under system/services
in the web config
then you can use putty or your favorite terminal to connect to the ESP32 - telnet not ssh
ah my syntax was wrong... that was driving my crazy. I'm in, thanks!
Yeah I have some cheap DACS, but I was more interested in the bluetooth sink aspects of this project.
I have two main issues right now - 1, even if the Bluetooth speaker connects, the script doesn't detect it and states "device discovery failed", and keeps looping. I'm assuming that's a quick fix that checks if something connected out of band somehow during the loop.
Two - When I do have it working, it's actually pretty reliable, but there seems to be a resampling issue, because if I sync it with a laptop squeezelite then the esp32 skips every 5-6 seconds. If I increase the sync delay windows flag to 1000ms, then it doesn't skip at all
My plan long term is to add a microphone to the end of the analog signal path to do dynamic delay and sync corrections
I'll have to defer to @philippe44 on the end to end signal path and timings, as he put a lot of efforts on fine tuning and optimizing it. As for the BT output, and if I remember correctly, we push packets to a DMA queue, and the DMA calls back when it needs data. But that's as far back as I remember, since I worked on the original BT output queue at the very beginning of the project when I didn't have a proper i2s DAC to work with
In sync, you're very much dependant on the clock that consumes data. We're lucky that in general, the esp32 have a relatively good clock that doesn't drift too much from the expected frequency
If you activate the debug logs on LMS sync, you will see how sync corrects various players
Some play too fast and will cause other players to skip frames forward
Good to know about the DMA queue, thanks. RE: clock dependence, i think my real question is what is the result of the "drift" from an audio signal POV?
IMO it would vary the pitch (minimally, but adding up over time)
And you can find some boards with DAC included (ai thinker esp32-a1s) for not a lot much
These boards also have microphones built in if I remember
As for drifting, it is all a matter of clock. Even small drifts can lead to playback speed difference at 44khz*2 (stereo)
Greetings any forum admin/mod here?
I have messud up my account regisration because I used a to long random password... after requesting a new one i am unable to access all
Could someone please take a look at my account (potter-91)
I have messud up my account regisration because I used a to long random password... after requesting a new one i am unable to access all
edit profile optionsCould someone please take a look at my account (potter-91)
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Do you mean the SqueezeAMP case? If yes then there are stl files at https://github.com/philippe44/SqueezeAMP/tree/3.x/case
i were able to build a firmware with master-cmake and esp-idf v4.0, i'm also able to flash squeezelite-esp32-master-cmake-I2S-4MFlash-32-1.1036.bin on the board
and I configured dac_config and dac_controlset by following instructions found in this issue : philippe44/squeezelite-esp32#28
ok, so i2c parameters are not the same, and the DAC is even not the same. Ok i will try again ;)
Hello everyone, I found this project （https://github.com/philippe44/SqueezeAMP ）by accident. The audio amplifier uses TAS57xx. Does it support TAS5760L? I noticed that TAS57xx is displayed in the bom.
Good day everybody! Could anyone imagine that a SqueezeAMP could get into a situation where a soft reboot would not return to stable playback, while a hard reboot (unplug power for a few seconds) would? My LMS system crashed because it run out of diskspace. I therefore took it offline to fix the issue, without rebooting SqueezeAMP. Upon return it would pick up the stream, play a second, re-buffer etc. for any kind of media (local mp3, Spotty, online radio). Soft-reboot wouldn't help. Only after really powering it down for a few seconds the playback returned to normal.
@wanzi - you would need to check pinout