ESP32 Forum

Posted: **Fri Nov 30, 2018 2:23 am**

I'm working on a A2DP sink application modified from A2DP example, but the defult volume is too loud, even I turn down the volume on iphone to minimum level.

How to config the volume in bluedroid of esp-idf ?

Change these lines are useless.

Code: Untitled.c Select all

btc_rc_vb.rc_volume = MAX_VOLUME; //btc_avrc.c line 161

Code: Untitled.c Select all

UINT8_TO_BE_STREAM(p_data, (AVRC_MAX_VOLUME & p_cmd->volume)); //avrc_bld_ct.c line 86

Posted: **Wed Dec 12, 2018 5:31 am**

i have changed filter bank. seems solve that problem

Code: synthesis-8-generated.c Select all

#define MUL_16S_16S(_x, _y) ((_x)/16 * (_y))

Posted: **Wed Dec 12, 2018 5:32 am**

synthesis-8-generated.c line48

#define MUL_16S_16S(_x, _y) ((_x)/32 * (_y))

ESP32 Forum

Change volume or loudness for ESP32 A2DP sink

Change volume or loudness for ESP32 A2DP sink

Re: Change volume or loudness for ESP32 A2DP sink

Re: Change volume or loudness for ESP32 A2DP sink