These settings adjust the audio input and output.
Input source
Choose the desired input source.
On Detect Source the device chooses the input with higher audio level during start up.
Default setting is "Mic".
Microphone gain
Choose the desired gain ("21" - "43.5" dB) for the microphone.
Default setting is "21" dB.
A/D amplifier gain
Choose the desired gain ("-3" - "19.5" dB) for the A/D amplifier.
Default setting is "-3" dB.
Loop Input to Output (MP3 only)
Choose "Yes" to hear the attached input on the local Line Out (For testing only, feedback may occure when using a speaker).
Default setting is "No".
Encoding
Choose between different encoding types (audio compression) and sampling frequencies.
From "MPEG1 / 48 kHz" down to "MPEG2 / 16 kHz" and "uLaw", "aLaw" or "PCM" at 8 or 24 kHz.
Default setting is "MPEG2 / 22.5 kHz".
MPEG Encoding Quality (MP3 only)
Choose between "0 lowest" and "7 highest" in steps of 1.
The Encoder Quality table below shows the average bit rate in kbit/s for the quality settings and sampling frequencies in kHz.
Default setting is "0 lowest".
Qual. | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
44.1 | 65 | 68 | 73 | 80 | 90 | 105 | 125 | 140 |
22.05 | 35 | 38 | 40 | 45 | 50 | 60 | 75 | 90 |