公开(公告)号：WO2017053057A1

公开(公告)日：2017-03-30

申请号：PCT/US2016/050408

申请日：2016-09-06

Applicant: IBIQUITY DIGITAL CORPORATION

Inventor： VINCELETTE, Scott

IPC: H04H20/22 ,  H04H60/58

CPC classification number: H04L7/0079 ,  G10L19/167 ,  H04B1/16 ,  H04H20/22 ,  H04H60/58 ,  H04H2201/18 ,  H04L7/0016

Abstract: A method for processing a radio signal includes producing first and second streams of audio samples; decimating the first and second streams of audio samples to produce first and second streams of decimated streams of audio samples; estimating a first offset value between corresponding samples in the first and second streams of decimated streams of audio samples; shifting one of the first and second streams of audio samples by a first shift value; decimating the first and second streams of audio samples to produce third and fourth streams of decimated audio samples; estimating a second offset value; determining a final offset value based on an intersection of ranges of valid results of the first and second offset values; and shifting one of the first and second streams of audio samples by the final offset value to align the first and second streams of audio samples.

Abstract translation: 一种用于处理无线电信号的方法包括产生第一和第二音频样本流; 抽取第一和第二音频样本流以产生抽取的音频样本流的第一和第二流; 估计所述第一和第二抽取流音频样本流中相应样本之间的第一偏移值; 将第一和第二音频样本流中的一个移位第一移位值; 抽取第一和第二音频样本流以产生第三和第四抽取的音频样本流; 估计第二偏移值; 基于所述第一和第二偏移值的有效结果的相交值来确定最终偏移值; 以及将所述第一和第二音频样本流中的一个移位最终偏移值以对准所述第一和第二音频样本流。

公开(公告)号：WO2017106612A1

公开(公告)日：2017-06-22

申请号：PCT/US2016/067118

申请日：2016-12-16

Applicant: IBIQUITY DIGITAL CORPORATION

Inventor： OLOCHWOSZCZ, Gabriel S. ,  PAHUJA, Ashwini ,  VINCELETTE, Scott

IPC: H04H20/22 ,  H04H60/12 ,  H04H20/26

CPC classification number: H03G3/3005 ,  G10L19/167 ,  H03G3/002 ,  H04H20/22 ,  H04H20/26 ,  H04H20/47 ,  H04H40/36 ,  H04H2201/18

Abstract: A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.

Abstract translation: 用于处理数字音频广播信号的方法包括：分离数字音频广播信号的模拟音频部分和数字音频部分; 在第一短时间间隔内确定模拟音频部分和数字音频部分的响度; 使用模拟和数字音频部分的响度来计算短期平均增益; 确定长期平均收益; 将长期平均增益或短期平均增益中的一个转换为dB; 如果输出已被混合为数字，则通过预选增量调整数字增益参数以产生数字增益参数; 如果输出未混合至数字，则将数字增益参数设置为短期平均增益; 将数字增益参数提供给音频处理器; 并使用第二短时间间隔重复上述步骤。