Panasonic 75/85/95 MXP User Manual

General Use 

155 

 

 

 
The system will automatically select the best audio algorithm based on the call rate and the 
capabilities of the remote system. Use this menu to disable audio algorithms in case you want to 
remove “low quality” audio, or if you have interoperability issues calling other systems. 
 

High quality audio (7 kHz at 48kbps, 56kbps or 64kbps) 
 

Compressed normal quality audio (telephone quality, 3.1 kHz at 16kbps) 
 

Normal quality audio (telephone quality 3.1kHz at 64kbps). This audio algorithm is 
mandatory for video meeting equipment and is impossible to uncheck. 
 

Compressed high quality audio (7 kHz at 24kbps, 32kbps and 48kbps). 
 

CD-quality audio, MPEG-4 Advanced Audio Coding Low Delay (20 kHz, stereo at 
128kbps, mono at 64kbps).  
 

 
Call Rate vs Audio algorithms selected 
Modify/remove algorithms used by uncheck the different audio algorithms. 
 
Automatically preferred audio algorithms on call rates up to and including 192kbps 
 
1. G.722.1 (24kbps or 32kbps) 
2. G.728 (16kbps) 
3. AAC-LD (64kbps or 56kbps) 
4. G.722 (56kbps, 64kbps or 48kbps)* 
5. G.711 (64kbps, 56kbps or 48kbps)** 
6. AAC-LD (48kbps or 128kbps) 
 
Automatically preferred audio algorithms on call rates above 192kbps 
 
1. AAC-LD (128kbps)*** 
2. AAC-LD (64kbps or 56kbps) 
3. G.722 (64kbps, 56kbps or 48kbps)* 
4. G.722.1 (32kbps or 24kbps) 
5. G.728 (16kbps) 
6. G.711 (64kbps, 56kbps, 48kbps)** 
7. AAC-LD (48kbps or 128kbps) 
 

*   G.722 at 64kbps is used in H.323 (IP) calls only. 
**  G.711 at 64kbps is used in SIP and H.323 (IP) calls only. 
*** Dependent on a call rate above the AAC-LD 128 threshold. Note that this is not available on all TANDBERG systems.