We are pleased to announce availability of AQuA version 7!
AQuA is capable to work with audio files represented in WAV format. Audio files should have the following parameters depending on the version one uses:
|AQuA||Sample rate||Bits per sample||Compressions||Channels|
|Voice||8kHz||8, 16, 24, 32||Uncompressed, a-law, u-law||Mono|
|WB||8kHz – 192kHz||8, 16, 24, 32||Uncompressed, a-law, u-law||Not limited (16 channels max)|
Main advantages of AQuA perceptual model are:
This version has extended report on reasons for voice quality degradation providing additional metrics, which you can find in bold in sample report below:
Audio stretching corresponds to 1.41 percent.
Delay of audio signal activity.
Signal delayed by 100 ms.
Corrupted signal spectrum.
Overall spectral energy distortion approaches 61.58 %
Vibration along the whole spectrum [-14.31, 47.27] %
Significant distortion in low frequencies band.
Energy distortion approaches 31.47 %
Spectrum vibration in low frequency band [-12.52, 18.95] %
Significant distortion in medium frequencies band.
Energy distortion approaches 27.22 %
Amplification approaches 25.42 %
Value Name Source Degraded Units
SNR : 63.16 69.59 dB
Average pitch : 145.12 155.59 Hz
Pitch delta : 2.44 2.99 Hz
ASR : 44.27 42.22 %
RMS classic : 0.0010 0.0015
RMS bounded : 0.0040 0.0068
Is RMSbounded valid: true true
AvgEnergy : 31.08 26.82 dB
MinEnergy : 6.94 1.02 dB
MaxEnergy : 70.10 70.60 dB
AvgSample : 83 10
MinSample : -11460 -10216
MaxSample : 11253 10981
Ampltude Clipping : 0.04 0.23 %
Pitch frequencies distribution distortion : 19.85.
Samples values distribution distortion : 16.82.
Quantization steps distribution distortion : 56.66.
Most of AQuA customers represent the following business segments:
AQuA helps telecom business to solve a wide range of tasks:
Among AQuA benefits one will definitely appreciate: