Intelligent terminal finished product acoustic testing system
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- Commodity name: Intelligent terminal finished product acoustic testing system
- Commodity ID: ABT9802
The main control board usually supports multiple working modes such as WIFI and Bluetooth, and parses MIC voice commands; The power amplifier board realizes voice playback of Smart speaker; The MIC board realizes voice command recording, usually recording 6-8 microphones simultaneously; Other auxiliary function boards such as buttons, LEDs, etc.
First, intelligent terminals are mainly divided into main control board, power amplifier board, MIC board and other auxiliary function boards
1. The main control board usually supports WIFI, Bluetooth and other working modes to parse the voice commands of MIC
2. The power amplifier board realizes the voice playback of smart speakers
3. MIC board realizes voice command recording, usually 6~8 microphones record at the same time
4. Other auxiliary function boards such as buttons, LEDs and so on
Second, MIC board test items
serial number
Test project name
Lower and upper limits
unit
lower limit
Normal value
upper limit
1
MIC sensitivity
2
MIC signal-to-noise ratio
3
MIC distortion
4
MIC frequency response
5
Sound leakage test
3. Finished product test items
serial number
Test project name
Lower and upper limits
unit
lower limit
Normal value
upper limit
1
MIC frequency response
2
MIC sensitivity
3
MIC distortion
4
SPK frequency response
5
SPK distortion
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