Tescom TC-3000C - Step 3. Verification of Speech Loopback for Mono Headset

3.7 Operation Procedure (Audio Analyzer)
63
[ Profile Parameters ]
Parameters
Range
Default
Descriptions
Type of Profile
None
Headset
Hands free
HS-AG
HF-AG
Audio-SNK
Audio-SRC
Hands free
Type of Profiles
Defines the profile type of DUT
Send Ring
Unchecked
When it is “checked” TC-3000C transmits
RING with AT command.
Gain control
Unchecked
If the DUT support the microphone and
speaker gain controls, checking this option
enable TC-3000C to control the volume of
it. Checking this menu causes “Speaker
Volume” and “Mic Volume” menu to be
showed below.
Speaker Volume
0 ~ 15
15
Speaker Volume
Specifies the volume of DUT speaker.
Mic Volume
0 ~ 15
15
Microphone Volume
Specifies the volume of DUT microphone .
Transfer Type
Built-in
User File
Built-in
Select to transmit the internal audio tone
or the external source which user saved.
Copy Source
Copy an audio source file from USB
Memory to TC-3000C. The name of file
must be “tc3000.sbc” and only a file can
be saved.
Sample Frequency
16000
32000
44100
48000
32000
The sample frequency of the audio source
(SBC)
Subbands
4, 8
8
The Subband of the audio source (SBC)
Bitpool
2 ~ 250
32
The Bitpool of the audio source (SBC)
3.7.2 Step 3. Verification of Speech Loopback for Mono Headset
Pressing F5 enable TC-3000C to SCO loopback mode. In this test, TC-3000C loopback
all SCO Data received from DUT. You can listen to your voice from Headset speaker
after the delay time specified and verify the performance (howling, echo, noise) of
microphone and speaker simply.
To stop the SCO loopback, press F5 again.