Search found 3 matches

by hubert3x3
Mon Aug 16, 2021 9:54 pm
Forum: ESP-ADF
Topic: Using ringbuffer with PSRAM
Replies: 1
Views: 7594

Re: Using ringbuffer with PSRAM

Update on my issue. I added log that shows how much of i2s_stream output buffer is filles and its size. Testing with that logs confirmed that from time to time buffer is completely filled. Also I noticed that its size was set to 8192 bytes by default. After adding this to init issue seems to be reso...
by hubert3x3
Mon Aug 16, 2021 8:14 pm
Forum: ESP-ADF
Topic: Using ringbuffer with PSRAM
Replies: 1
Views: 7594

Using ringbuffer with PSRAM

I'm using ESP32 with PSRAM onboard to collect audio (44.1kHz@16b) from I2S and send it to PC using http_stream. As long as there is no problem with Wifi received audio is smooth but as I am moving further away from router some artifacts starts to occur. It seems that I lose some data. I've chosen ES...
by hubert3x3
Sun May 30, 2021 9:44 pm
Forum: ESP-ADF
Topic: 24bit ADC -> 16bit I2S
Replies: 0
Views: 5177

24bit ADC -> 16bit I2S

I'm using PCM1808 (24bit audio ADC) + ESP32 to sample audio and send it over http_stream. My problem is that PCM1808 is outputting 24bits per sample and I have to set I2S for 32bits for my code to work. With 32bits per sample I can only go as high as 32kHz sample rate. Above that the received audio ...