el may depend on your demands,d the surrounding noise. For MP3snd 192 kb/s usually gives resultsng to pop music with your device.gives a similar result as MP3 with96-160 kb/s). Variations of AAC,nced AAC+ (eAAC+) provide CDas low as 48 kb/s. Classical musics usually require a higher bitrateces where the quality of the soundaving storage space, you can use64 kb/s. At low bitrates WMAetter results than MP3.ts variable bitrate (VBR). Variableit rate of the encoding varies withncoded material. When using VBR,ed to preserve a constant audiotrack, rather than losing qualityons as with constant bitrate
