Abstract: Method and System for avoiding howling disturbance especially on conferences, wherein the method comprising the steps of using a howling detector unit implemented inside a multipoint control unit to receive an audio stream input from a client, analyzing the audio input with the howling detector in order to verify if howling noise is present, using at least two of a skewness analysis, a flatness analysis, a crest analysis, a rolloff analysis and preventing the audio stream input to be forwarded as an output to an audio mixer, if howling noise is present.

Abstract: Method and System for avoiding howling disturbance especially on conferences, wherein the method comprising the steps of using a howling detector unit implemented inside a multipoint control unit to receive an audio stream input from a client, analyzing the audio input with the howling detector in order to verify if howling noise is present, using at least two of a skewness analysis, a flatness analysis, a crest analysis, a rolloff analysis and preventing the audio stream input to be forwarded as an output to an audio mixer, if howling noise is present.

Abstract: A method of determining the quality of transmitted voice data can include: providing voice data at a transmitter side in a first data format, providing a first test signal in the first data format, combining the voice data and the test signal to form input data, transmitting the input data in a transmittal data format, receiving the transmitted input data at a receiver side to obtain output data, removing at least portions of a data packet in the output data or of a data packet derived therefrom in order to derive a second test signal, and analysing the derived second test signal by applying a predetermined analysis criterion in order to obtain at least one value for a quality indicator. An apparatus and system can also be configured to utilize embodiments of the method.

Abstract: A method of determining the quality of transmitted voice data can include: providing voice data at a transmitter side in a first data format, providing a first test signal in the first data format, combining the voice data and the test signal to form input data, transmitting the input data in a transmittal data format, receiving the transmitted input data at a receiver side to obtain output data, removing at least portions of a data packet in the output data or of a data packet derived therefrom in order to derive a second test signal, and analysing the derived second test signal by applying a predetermined analysis criterion in order to obtain at least one value for a quality indicator. An apparatus and system can also be configured to utilize embodiments of the method.

Abstract: A method for assessing quality of a video transmission over a network between a transmitting side and a receiving side can include receiving, at the receiving side, a video stream generated at the transmitting side and transmitted via the network to the receiving side including a plurality of frames. At least one of the frames can include synthetically created portions. At the receiving side, the video stream received from the transmitting side can be analyzed by comparing the video stream received with the video stream originally transmitted. The receiving side can also generate and output a quality score for the video stream received. The output score can be based on the performed analysis. A system and communication apparatus configured to utilize an embodiment of the method are also provided.

Abstract: A system and method for selecting a communication connection candidate for transmission of a media stream via a media connection over a communications network can include use of the ICE protocol for selecting a transmission communication connection candidate for transmitting the media stream from a local peer to a remote peer. During transmission of the media stream from the local peer to the remote peer via the selected transmission communication connection candidate, the communication connection candidates can be tested with respect to Quality of Service (QoS), in both communication directions. The QoS of at least one tested communication connection candidate can be compared to the QoS of the selected communication connection candidate transmitting the media stream. If a tested communication connection candidate provides a better QoS, then the transmission of the media stream can be switched to that communication connection candidate.

Abstract: A method for assessing quality of a video transmission over a network between a transmitting side and a receiving side can include receiving, at the receiving side, a video stream generated at the transmitting side and transmitted via the network to the receiving side including a plurality of frames. At least one of the frames can include synthetically created portions. At the receiving side, the video stream received from the transmitting side can be analyzed by comparing the video stream received with the video stream originally transmitted. The receiving side can also generate and output a quality score for the video stream received. The output score can be based on the performed analysis. A system and communication apparatus configured to utilize an embodiment of the method are also provided.

Abstract: A system and method for selecting a communication connection candidate for transmission of a media stream via a media connection over a communications network can include use of the ICE protocol for selecting a transmission communication connection candidate for transmitting the media stream from a local peer to a remote peer. During transmission of the media stream from the local peer to the remote peer via the selected transmission communication connection candidate, the communication connection candidates can be tested with respect to Quality of Service (QoS), in both communication directions. The QoS of at least one tested communication connection candidate can be compared to the QoS of the selected communication connection candidate transmitting the media stream. If a tested communication connection candidate provides a better QoS, then the transmission of the media stream can be switched to that communication connection candidate.