API / mini Series API / 0x16/0x17 Set External Audio Vol
Line-in and MIC Audio Volume Setting
Applicable Devices : mini-pro, mini-pro V3, mini v3, mini-ISO
| Symbol | Definition | Remarks |
|---|---|---|
| Start bit | < | The command uses "<" as the start bit |
| Transmit | T | |
| ADDR | 0x00 | |
| SN | 0x00 | |
| CMD | 0x81 | |
| DAT1 | 0x16-0x17 | 0x16: set; 0x17: query |
| DAT2 | 0x00-0x01 | 0x00: Line-in; 0x01: Mic In |
| DAT3 | 0x00-0F | Line:00-1F(12 to -34.5db, 1.5db per step), MIC: 00-08(0-40db,5db per step) |
| DAT4 | 0x00 | Not used |
| CHKSUM | Check sum = ADDR + SN + CMD + DAT1 + DAT2 + DAT3 + DAT4 | |
| End bit | > | The command uses ">" as the end bit |
Command list
| Start bit | Instruction Type | Address | SN | Command | Data 1 | Data 2 | Data 3 | Data 4 | Checksum | End bit | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MIC input volume to 25 db | < | T | 00 | 00 | 81 | 16 | 01 | 05 | 00 | 9D | > |
| LINE input volume to -3 db | < | T | 00 | 00 | 81 | 16 | 00 | 0A | 00 | A1 | > |