The invention provides a method and device for assessing voice quality. The method comprises a step of calculating and obtaining a POLQA-MOS value corresponding to an effective voice segment in degraded voice information according to a POLQA algorithm according to original voice information and the corresponding degraded voice information after the test of the original voice information, a step ofextracting acoustic features in the effective voice segment, a step of establishing a voice quality assessment model according to the acoustic features of the effective voice segment and the POLQA-MOS value corresponding to the acoustic features by using a deep learning algorithm, a step of inputting the acoustic features of input voice data in the voice quality assessment model and obtaining voice data ePOLQA-MOS value. The accuracy of evaluating voice quality can be improved, and thus the quality of a call of a network user is truly reflected.

Method and device for assessing voice quality

The invention discloses a voice service quality evaluation method and a device After predetermined time length, a to-be-evaluated voice service employing an AMR coding mode is processed as follows: wireless network parameters generated within the predetermined time length are acquired; whether rate mode switching occurs within the predetermined time length is determined according to the wireless network parameters; if no, a voice service quality evaluation result within the predetermined time length is determined according to a fixed rate mode; otherwise, for each rate mode generated within the predetermined time length, the voice service quality evaluation results corresponding to each rate mode within the predetermined time length are determined respectively according to the fixed rate mode, weighting operation on the voice service quality evaluation results corresponding to each rate mode is carried out, and the voice service quality evaluation result within the predetermined time length is acquired The method is suitable for quality evaluation on the voice service employing the AMR coding mode, and the accurate evaluation result can be acquired

Voice service quality evaluation method and device

Although the pursuing of the data service diversity has become the mainstream, the speech quality is of vital importance for the network operator in the intensifying competition telecommunication market The Adaptive Multi-Rate (AMR) codec mode, which is one of the most significant techniques, is recommended by 3rd Generation Partnership Project (3GPP) for audio data compression Many studies relevant to AMR codec, including the parameter configuration, have been progressed However, most of them are studied by simulations In this paper, the study of the configuration of Threshold (THR), Hysteria (HYST) and Initial Codec Mode (ICM) for AMR-FR and AMR-HR are implemented in the commercial network Totally, 26 schemes are put forward and tested to obtain the optimization configuration, which will be used in the current network to improve the speech service quality

The optimization of parameters configuration for AMR codec in mobile networks

Recently, Quality of Experience (QoE) of voice service has been paid more attentions because it represents the performance of voice service subjectively perceived by the end users. And speech quality is commonly used to measure the QoE value. In this paper, a speech quality assessment algorithm is proposed for GSM network, aiming to predict and monitor QoE of voice service based on radio link parameters with low complexity for operators. Multiple Linear Regression (MLR) and Principal Component Analysis (PCA) are combined and used to establish the mapping model from radio link parameters to speech quality. Data set for model training and testing is obtained from real commercial network of China Mobile. The experimental results show that with sufficient training data, this algorithm can predict radio speech quality with high accuracy and could be used to monitor speech quality of mobile network in real time.

/pdf/radio-link-parameters-based-qoe-measurement-of-voice-service-5f5czjl6hk.pdf

Radio Link Parameters Based QoE Measurement of Voice Service in GSM Network

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Voice service quality evaluation method and device

The optimization of parameters configuration for AMR codec in mobile networks

Radio Link Parameters Based QoE Measurement of Voice Service in GSM Network