Audio enhancement communication techniques

In a communication system comprising a first telephone and a second telephone, apparatus arranged to enable communication between the first telephone and second telephone comprising:

• a first processor comprising signal enhancement apparatus arranged to enhance signals transmitted in a first direction and in a second direction opposite the first direction;
• a second processor comprising signal enhancement apparatus arranged to enhance signals transmitted in the first direction and the second direction;
• a first path connecting the first and second processors in tandem during a connection between the first and second telephones;
• and
• a switch arranged to disable the signal enhancement apparatus for one of the first and second processors for signals transmitted in the first direction during the connection and to disable the signal enhancement apparatus for one of the first and second processors for signals transmitted in the second direction during the connection.

In a communication system arranged to receive a communication signal comprising first data compressed at a compression level within a first range of compression levels and second data compressed at a compression level within a second range of compression levels, the first range of compression levels being greater than the second range of compression levels, a method of enhancing the quality of the communication signal comprising:

• generating a first mode signal in response to the first data;
• generating a second mode signal in response to the second data;
• generating decoded first data having a compression level less than the first range of compression levels in response to the first mode signal;
• generating a first analyzer signal in the event that the first data is deemed suitable for a first type of enhancement in response to the first mode signal and the decoded first data;
• generating a second analyzer signal in the event that the first data is deemed suitable for a second type of enhancement in response to the first mode signal and the decoded first data;
• generating a third analyzer signal in the event that the second data is deemed suitable for a third type of enhancement in response to the second mode signal and second data;
• generating a fourth analyzer signal in the event that the second data is deemed suitable for a fourth type of enhancement in response to the second mode signal and second data;
• generating enhanced decoded first data enhanced with the first type of enhancement in response to the first analyzer signal and the decoded first data;
• generating enhanced first data enhanced with the second type of enhancement in response to the second analyzer signal and the first data;
• generating enhanced second data enhanced with the third type of enhancement in response to the third analyzer signal and the second data;
• generating enhanced second data enhanced with the fourth type of enhancement in response to the fourth analyzer signal and the second data;
• and
• encoding the enhanced decoded first data to form encoded enhanced first data having a compression level within the first range of compression levels.

In a communication system arranged to receive a communication signal comprising first data compressed at a compression level within a first range of compression levels and second data compressed at a compression level within a second range of compression levels, the first range of compression levels being greater than the second range of compression levels, apparatus arranged to enhance the quality of the communication signal comprising:

• means for generating a first mode signal in response to the first data and for generating a second mode signal in response to the second data;
• means for generating decoded first data having a compression level less than the first range of compression levels in response to the first mode signal;
• means for generating a first analyzer signal in the event that the first data is deemed suitable for a first type of enhancement in response to the first mode signal and the decoded first data, for generating a second analyzer signal in the event that the first data is deemed suitable for a second type of enhancement in response to the first mode signal and the decoded first data, for generating a third analyzer signal in the event that the second data is deemed suitable for a third type of enhancement in response to the second mode signal and second data and for generating a fourth analyzer signal in the event that the second data is deemed suitable for a fourth type of enhancement in response to the second mode signal and second data;
• means for generating enhanced decoded first data enhanced with the first type of enhancement in response to the first analyzer signal and the decoded first data, for generating enhanced first data enhanced with the second type of enhancement in response to the second analyzer signal and the first data, for generating enhanced second data enhanced with the third type of enhancement in response to the third analyzer signal and the second data, for generating enhanced second data enhanced with the fourth type of enhancement in response to the fourth analyzer signal and the second data;
• and
• means for encoding the enhanced decoded first data to form encoded enhanced first data having a compression level within the first range of compression levels.

A computer readable medium encoded with a computer program executable to perform functionality comprising:

• generating a first mode signal in response to first data of a communication signal, the first data being compressed at a compression level within a first range of compression levels;
• generating a second mode signal in response to the second data of the communication signal, the second data being compressed at a compression level within a second range of compression levels, the first range of compression levels being greater than the second range of compression levels;
• generating decoded first data having a compression level less than the first range of compression levels in response to the first mode signal;
• generating a first analyzer signal in the event that the first data is deemed suitable for a first type of enhancement in response to the first mode signal and the decoded first data;
• generating a second analyzer signal in the event that the first data is deemed suitable for a second type of enhancement in response to the first mode signal and the decoded first data;
• generating a third analyzer signal in the event that the second data is deemed suitable for a third type of enhancement in response to the second mode signal and second data;
• generating a fourth analyzer signal in the event that the second data is deemed suitable for a fourth type of enhancement in response to the second mode signal and second data;
• generating enhanced decoded first data enhanced with the first type of enhancement in response to the first analyzer signal and the decoded first data;
• generating enhanced first data enhanced with the second type of enhancement in response to the second analyzer signal and the first data;
• generating enhanced second data enhanced with the third type of enhancement in response to the third analyzer signal and the second data;
• generating enhanced second data enhanced with the fourth type of enhancement in response to the fourth analyzer signal and the second data;
• and
• encoding the enhanced decoded first data to form encoded enhanced first data having a compression level within the first range of compression levels.