Process and arrangement for transmitting a voice message

A transmission arrangement for transmitting a voice message, the transmission arrangement comprising:

• a transmission device, the transmission device comprising:
• a sender-side voice input unit;
• a recipient-side voice output unit;
• and
• a transmission channel, the transmission channel comprising:
• a signal processing unit,
• a sender-side radio unit and
• a recipient-side radio unit;
• and
• a signal-processing measurement and adjustment unit,
• wherein the transmission device is configured
• to receive, at the sender-side voice input unit, an input voice message as the voice message to be transmitted and to convert the input voice message into an input voice message signal,
• to transmit the input voice message signal to the transmission channel,
• to transmit, with the transmission channel, the input voice message signal and to output an output voice message signal as a result of the transmission,
• to transmit the output voice message signal to the recipient-side voice output unit, and
• to receive, at the recipient-side voice output unit, the transmitted output voice message signal, to convert the transmitted output voice message signal into an output voice message, and to output the output voice message,
• to receive and process, with the signal processing unit, the input voice message signal, wherein the signal processing unit has at least one changeable parameter and uses a value for the changeable parameter to process the input voice message signal,
• to transmit the processed input voice message signal from the signal processing unit to a sender-side radio unit and via a radio link from the sender-side radio unit to the recipient-side radio unit, and
• to receive, with the recipient-side radio unit, the transmitted signal and to output the transmitted signal as the output voice message signal, and
• wherein the measurement and adjustment unit is configured to perform an adjustment procedure comprising the steps of:
• the measurement and adjustment unit generating an input test signal;
• transmitting the input test signal to the transmission channel;
• transmitting the input test signal through the transmission channel, such that an output test signal is generated from the input test signal by the transmission in the transmission channel;
• transmitting the output test signal back to the measurement and adjustment unit, the transmission being performed with a bypassing of the transmission channel;
• evaluating, with the measurement and adjustment unit, a quality of the transmission channel and using the received output test signal for the evaluation;
• calculating, with the measurement and adjustment unit, a value for the changeable parameter of the signal processing unit as a function of the evaluation of the transmission channel quality, and
• causing, with the measurement and adjustment unit, the calculated value for the parameter to be transmitted to the signal processing unit and to be used by the signal processing unit.