1.3. Available encoding modes.
The encoding modes available will vary according to the communication interface or module
selected to establish the connection.
We recommend consulting ANNEXE A to see a detailed description, as well as additional
information on these encoding modes.
• OPUS
o Mode: Mono / Stereo
o Bit rate: 12Kbps / 20Kbps / 32Kbps / 64Kbps / 128Kbps /192Kbps
o Sampling rate: 48KHz
• G.711 A-Law or µ-Law mono
o Mode: Mono
o Bit rate: 64Kbps
• G.722
o Mode: Mono
o Bit rate: 64Kbps
• AEQ LD+ *
o Mode: Mono / Stereo
o Bit rate: 64Kbps / 128Kbps / 192Kbps / 256Kbps / 384Kbps
o Sampling rate: 16KHz / 32KHz / 48KHz
• MPEG-1/2 LII (MP2) ***
o Mode: Mono / Stereo / Dual / JStereo
o Bit rate: 64Kbps / 128Kbps /192Kbps / 256Kbps / 384Kbps
o Sampling rate: 16KHz / 24KHz / 32KHz / 48KHz
• AAC-LC ****
o Mode: Mono / Stereo / MS Stereo
o Bit rate: 32Kbps / 64Kbps / 96Kbps / 128Kbps / 192Kbps / 256Kbps
o Sampling rate: 24KHz / 32KHz / 48KHz
• AAC-LD ****
o Mode: Mono / Stereo / MS Stereo
o Bit rate: 32Kbps / 64Kbps / 96Kbps / 128Kbps / 192Kbps / 256Kbps
o Sampling rate: 48KHz
• PCM
o Mode: Mono / Stereo
o Bit rate: between 384 and 2304Kbps
o Sampling rate: 32KHz / 48KHz
o Bits per sample: 12 (DAT) / 16 / 20 / 24
• Hybrid mode 1
o TX: MPEGL2_64_48
o RX: G722
• Hybrid mode 2
o TX: G722
o RX: MPEG1-LII_64_48
• AUTOSYNC (only for ISDN and V35)
* Proprietary mode, exclusive for AEQ Phoenix, which combines very high quality and low
delay.
** Only the 64 and 128Kbps modes are available for ISDN communications and all the 64,
128 and 256Kbps modes for V35.
*** The 64 and 128Kbps modes over ISDN interface include the option of carrying a
continuous data channel at 9600 bps.
**** AAC-LC and AAC-LD are optional modes. For more information, please consult AEQ
Sales Department or authorized AEQ distributors.
Operation with two AAC simultaneously not supported.
NOTE: Other different encoding modes can be taken into account according to specific needs of
each client.
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