Aiming at problems of hiding capacity is not large and embedded point is fixed that many speech hiding algorithms have

propose a new speech hiding algorithm. Hidden information is mapped by Logistics

and the RS encoding is added to the hidden information. Lifting wavelet transform and singular value decomposition are applied to audio information hiding. Experiments show that the audio file after embedded in hidden information through this algorithm not only has a significant improvement in the capacity of hidden information

but also has good transparency

and it can also resist certain attacks. The algorithm reaches a higher balance in hidding capacity

transparency and robustness.