Aiseesoft WMA MP3 Converter is able to help you convert all popular video(3GP, 3G2, AVI, DV, DIF, FLV, SWF, F4V, MOD, MJPG, MJPEG, QT, MKV, MPG, MPEG, MPEG-2, MP4, VOB, DAT, M4V, MPV, MOV, RM, RMVB, TOD, TS, TRP, TP, WMV, ASF, HD video) and audio(AAC, AIF, CUE, AU, M4A, AIFF, FLAC, MP3, MP2, APE, OGG, AC3, RA, RAM, WAV, WMA) files to AAC, AC3, M4A, MP2, MP3, WMA audio formats. Moreover, it will bring you much faster converting speed and best output quality.
In order to edit your output video, you can combine and join multiple audio files together and output a single audio file by using "Merge". You can get any segment of video/audio by setting the "Start Time" and "End Time" of the clip or just dragging the slider bar with the "Trim" function.
Aiseesoft WMA MP3 Converter enables you to set details audio settings, including Audio Encoder, Sample Rate, Channels, and Audio Bitrate. And all these settings can be saved in the option list of "User-Defined".
What's more, it offers some other useful abilities to you such as inputing the same source video/audio files repeatedly and setting different output audio formats for each, and then you can get several output audios with only one conversion. With this WMA MP3 Converter, you would get the ability to select audio track and subtitle for output files.