Sound demos for "A Low-Bitrate Neural Audio Codec Framework with Bandwidth Reduction and Recovery for High-Sampling-Rate Waveforms"

Authors: Yang Ai, Ye-Xin Lu, Xiao-Hang Jiang, Zheng-Yan Sheng, Rui-Chen Zheng, Zhen-Hua Ling

 

Comparison among baseline codecs

Example 1 (p360, male speaker)
Raw Audio      
   
APCodec+AP-BWE at 1 kbps SoundStream at 6 kbps Encodec at 6 kbps HiFi-Codec at 6 kbps
Example 2 (p361, female speaker)
Raw Audio      
   
APCodec+AP-BWE at 1 kbps SoundStream at 6 kbps Encodec at 6 kbps HiFi-Codec at 6 kbps
Example 3 (p362, female speaker)
Raw Audio      
   
APCodec+AP-BWE at 1 kbps SoundStream at 6 kbps Encodec at 6 kbps HiFi-Codec at 6 kbps
Example 4 (p363, male speaker)
Raw Audio      
   
APCodec+AP-BWE at 1 kbps SoundStream at 6 kbps Encodec at 6 kbps HiFi-Codec at 6 kbps
Example 5 (p364, male speaker)
Raw Audio      
   
APCodec+AP-BWE at 1 kbps SoundStream at 6 kbps Encodec at 6 kbps HiFi-Codec at 6 kbps
Example 6 (p374, male speaker)
Raw Audio      
   
APCodec+AP-BWE at 1 kbps SoundStream at 6 kbps Encodec at 6 kbps HiFi-Codec at 6 kbps
Example 7 (p376, male speaker)
Raw Audio      
   
APCodec+AP-BWE at 1 kbps SoundStream at 6 kbps Encodec at 6 kbps HiFi-Codec at 6 kbps
Example 8 (s5, female speaker)
Raw Audio      
   
APCodec+AP-BWE at 1 kbps SoundStream at 6 kbps Encodec at 6 kbps HiFi-Codec at 6 kbps

Comparison among APCodec-related codecs

Example 1 (p360, male speaker)
Raw Audio        
     
APCodec+AP-BWE at 1 kbps APCodec at 1.5 kbps APCodec at 3 kbps APCodec at 4.5 kbps APCodec at 6 kbps
Example 2 (p361, female speaker)
Raw Audio        
     
APCodec+AP-BWE at 1 kbps APCodec at 1.5 kbps APCodec at 3 kbps APCodec at 4.5 kbps APCodec at 6 kbps
Example 3 (p362, female speaker)
Raw Audio        
     
APCodec+AP-BWE at 1 kbps APCodec at 1.5 kbps APCodec at 3 kbps APCodec at 4.5 kbps APCodec at 6 kbps
Example 4 (p363, male speaker)
Raw Audio        
     
APCodec+AP-BWE at 1 kbps APCodec at 1.5 kbps APCodec at 3 kbps APCodec at 4.5 kbps APCodec at 6 kbps
Example 5 (p364, male speaker)
Raw Audio        
     
APCodec+AP-BWE at 1 kbps APCodec at 1.5 kbps APCodec at 3 kbps APCodec at 4.5 kbps APCodec at 6 kbps
Example 6 (p374, male speaker)
Raw Audio        
     
APCodec+AP-BWE at 1 kbps APCodec at 1.5 kbps APCodec at 3 kbps APCodec at 4.5 kbps APCodec at 6 kbps
Example 7 (p376, male speaker)
Raw Audio        
     
APCodec+AP-BWE at 1 kbps APCodec at 1.5 kbps APCodec at 3 kbps APCodec at 4.5 kbps APCodec at 6 kbps
Example 8 (s5, female speaker)
Raw Audio        
     
APCodec+AP-BWE at 1 kbps APCodec at 1.5 kbps APCodec at 3 kbps APCodec at 4.5 kbps APCodec at 6 kbps