Toshiba A1 Manuale Utente

 Subtest 01 

Microphoned recording & play 

This subtest checks the function of the CODEC A/D D/A converter. Both the 
microphone and headphone terminals can be checked at the same time. 

Before executing this subtest, connect an external microphone to the 
computer. If necessary, connect a headphone to the computer to check 
whether the headphone jack of the computer is working properly. 

When the subtest is selected, the following message appears. 

....Press test number[1-4] ? pause 

Press any key to continue... 

Press any key, and the following message appear. 

Record from source name is MIC 

Requested Sampling Rate is 22025 Hz 

Volume requested is 0,000dB 

Record to buffer is BUFFER0 

Record Time requested is 5.000 seconds 

Actual record time will be 5.000 

When the above message is displayed, the screen is fixed for a while. Then 
record the sound with the microphone. 

When the following message appears, make sure the recorded sound is 
replayed. 

Play to destination is LINEOUT 

Volume requested is 0,000dB 

Play from buffer name is BUFFER0 

Requested play time is 5.000 seconds 

Actual play time will be 5.000 

Completing  SoundMAX/ICH play buffer0 to line out 

End time   XXX XXX XX  XX:XX:XX XXXX 

System Status 0X0 

Test completed at XXX XXX XX XX:XX:XX  XXXX 

System completion code was 0X0 

Subtest 02 

Sin Wave 

This subtest is executed by loading the COM file (ADSIN.COM). The 
program expands sin wave data table from 16KB to 64KB, and creates the 
play data. Then it transfers the data between the DMA and the CODEC to 
paly the sine wave. (It sounds like a continuous beep). By using wave 
measuring devices such as an oscilloscope, the data can be measured as a sine 
wave.