you have it on your table, and when there is no music playing, you dont hear anything, like a buzz, especially from right speaker.
Im not talking at volume. Im talking when there is NOTHING playing, but the device is on. It doesnt change with volume.
I hear it with USB (connected to PC) and Optical connection (using Chromecast Audio dongle)
As I mentioned earlier, I went with SMSL C100 and Fosi V3, and in exact same setup, there is ZERO noise coming out of speakers when nothing is playing.
Can you check EQ was on or in Direct mode? I tested my device this few days and found some noize on max volume (60) nothing playing and it depended from EQ preset. In Direct mode all is excellent)
WOW i made Firmware update
After update no click when power on\off, no bzz in speakers with "On when Needed" option in xmos driver (but still delay, u may change to Always on for avoid this)
Here is log^
Checking target MCU ...
MCU type: STC8C2K64S2
F/W version: 7.3.13U
Current H/W Option:
. ISP-IRC frequency: 23.772MHz
. IRC frequency: 24.010MHz
. Wakeup Timer frequency: 35.300KHz
. Oscillator gain is HIGH
. User EEPROM size is 3 K
. Do not detect the level of P3.2 and P3.3 next download
. Power-on reset, use the extra power-on delay
. RESET pin behaves as IO pin
. Reset while detect a Low-Voltage
. Thresh voltage level of the built-in LVD : 2.70 V
. Hardware do not enable Watch-Dog-Timer
. Watch-Dog-Timer pre-scalar : 256
. Watch-Dog-Timer stop count in idle mode
. Erase user EEPROM area at next download
. Do not control 485 at next download
. Do not check user password next download
. Reference voltage: 1185 mV (Range: 1100~1300mV)
. Testing time: 2023-4-3
MCU type: STC8C2K64S2
F/W version: 7.3.13U
Adjusting frequency ... [1.000"]
Adjusted frequency: 23.995MHz (-0.020%)
Re-handshaking ... Successful [0.125"]
Current Baudrate: 115200
Erasing MCU flash ... OK ! [0.641"]
Programming user code ... OK ! [9.313"]
Programming OPTIONS ... OK ! [0.016"]
H/W Option upgrade to:
. ISP-IRC frequency: 23.772MHz
. IRC frequency: 23.995MHz
. Wakeup Timer frequency: 35.300KHz
. Oscillator gain is HIGH
. User EEPROM size is 3 K
. Do not detect the level of P3.2 and P3.3 next download
. Power-on reset, use the extra power-on delay
. RESET pin behaves as IO pin
. Reset while detect a Low-Voltage
. Thresh voltage level of the built-in LVD : 2.70 V
. Hardware do not enable Watch-Dog-Timer
. Watch-Dog-Timer pre-scalar : 256
. Watch-Dog-Timer stop count in idle mode
. Erase user EEPROM area at next download
. Do not control 485 at next download
. Do not check user password next download
. Reference voltage: 1185 mV (Range: 1100~1300mV)
. Testing time: 2023-4-3
MCU ID : F7DCC9190232AE
MCU type: STC8C2K64S2
F/W version: 7.3.13U
. Set frequency: 24.000MHz
. Adjusted frequency: 23.995MHz ( clock divider = 1; )
. Trim error: -0.020%
Complete !(2023-11-27 16:25:26)