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tierneytim / btAudio

Bluetooth Audio for Arduino
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Stream and record simultaneously #14

Closed bluecaratmoa closed 2 years ago

bluecaratmoa commented 3 years ago

Is it possible to record the data received while listening to the audio simultaneously?

I'm planning to apply your code with a Bluetooth microphone as a source, I tried using this, however, when I added the recording feature inside the callback function, the streaming stops.

Is there other way to retrieve the bt data that wont disturb the streaming of bt data?

tierneytim commented 3 years ago

It's really tough and depends how you want to record the data. If you want to use an sd card you'll need to guarantee you've got>>176.4 KB/s write speed. Then you need to allow for the i2s transmission as well. Not saying its impossible to do both but I haven't managed it.

bluecaratmoa commented 3 years ago

I see. I have an SD card with minimum write speed of 10 MB/s. I'm not sure if I understood the callback function right, upon calling audio.setSinkCallback(bt_data_cb1); and then calling audio.createFilter will not affect the data anymore? I asked this because I'm planning to filter the data before saving it.

Also, this might be out of the scope of this repository but I would like to ask also if you are familiar on how can I write the bt data into an audio file?

tierneytim commented 2 years ago

this feature will not be implmented