Prodys PortaNet Hardware And Reference Manual page 47

V.5.2.3. Screen 3: Audio output VU meters
The audio input levels are represented on-screen horizontally over 18 characters.
Each character represents 3dB. All characters showing will represent 0 dBFs.
When only one character is showing it therefore represents a value between –96
and –56 dBFs. The dBFs value is indicated on the right of the LCD screen. The
output is indicated by a > symbol following the L and R characters.
L : > > > > > > >
R : > > > > > >
V.5.2.4. Screen 4: Decoding algorithm
This window shows the algorithm that is selected and synchronised for Decoder
1 and 2 (number 2 is only relevant when PortaNet is working as a DUAL codec).
Here are some examples:
D 1 : M P L 2 - 0 6 4 - M N - 4 8
D 2 : G 7 2 2
D 1 : M P L 2 - 6 4 - S T - 4 8
D 2 : N O T A V A I L A B L E
If the Decoder is not synchronised it will show the text "SEARCHING"
The different algorithms are written in the following way:
PCM – Mode - Sample Rate – number of bits.
G711 – Law.
G722.
MPEG Layer II – Bit rate – Mode – Sample Rate – CRC.
MPEG Layer III – Bit rate – Mode – Sample Rate – CRC.
AAC MPEG2 LC – Mode – Sample Rate – CRC.
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