Creating an 8-channel, 16-bit audio recorder with ESP32 -- possible?

1. wvr

   1 4 78 4.1 C

   Home of WVR, an open source, Arduino compatible, ESP32-based Sample Player and Audio Framework.

   

   I use klm8g1getf. It’s 8GB and about $5 from LCSC, easyEDA has the footprint and symbol. I run mine at 52mhz, 4-line mode. I’m able to playback 20 stereo wavs at once @44.1k 16bit. Writing is a lot slower but 8 should be possible. I wrote my own flat file system to prioritize speed, all the standard file systems will slow you down a lot, as far as I could find, sequential reads and writes are much faster, and most file systems don’t do that. https://github.com/marchingband/wvr/blob/main/src/emmc.c

2. Stream

   getstream.io featured

   Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.

   

3. gfx

   2 35 131 7.1 C++

   GFX is a device independent graphics library primarily intended for IoT MCUs but not limited to that. (by codewitch-honey-crisis)

   

   I do something similar to VSPI in my Arduino based drivers for my htcw_gfx library.

4. esp-adf

   3 19 1,957 8.3 C

   Espressif Advanced Development Framework

   

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