[MEncoder-users] Bug: Mono show 2 channels????

[GeBu]

Mike, thank you very much. Your information are very very interesting, 
practical and useful.
Jirka (GeBu)
> Well, coming from a DV camera, you will always have 48000Hz for audio. 
> I wouldn't suggest changing this because resampling can cause noise 
> and distortion if the resample filter isn't having a good day; and in 
> reality there won't be much difference.  Bitrate vs. samplerate is 
> another matter; the higher the frequencies are that the encoder is 
> encoding, the more bitrate will be used at any given quality.  lame 
> usually does a good job of using a low-pass filter to compensate for 
> this, effectively reducing if not completely elimintating higher 
> frequencies, without distorting the rest of the spectrum like 
> resampling can.
>
> For your audio source, I would say 80 is good for mono, while stereo 
> can make use of channel-coupling so 128kbit sounds ok for most things. 
> You may also be asking why "stereo" can be effectively less bitrate 
> than 2xMono: this is because MP3 makes use of "mid/side" stereo, 
> encoding the 'middle' and the 'side' sounds seperately. Most things 
> are fairly 'centered' within the audio space so they will sound much 
> better than if you had 2 completely separate channels.
>
> Mike