What do you use for downsampling wav

[lar1r]

Currently I use Cool Edit to load in a 44.1 wav and then downsample to 32K. Prob is, this process is cumbersome.

I was wondering what others were using to downsample their wav while maintaining high quality. (Virtual dub will do it but I suspect the quality isn't as great).

Thx

[PhAtfiSh]

BeSweet 1.11 + SSRC 1.28

[MaTTeR]

SSRC dll in HeadAC3he. Seems to work very well.

[tangent]

SSRC provides the best theoretical quality for sample rate changing. Most sample rate changer are good enough though, that means theoretically they are not doing it optimally, but you won't hear a difference anyway. There are some which are known to have audible problems (SoundForge at lowest quality, and SBLive's internal, for example). Lame's inbuilt one is amongst those which are "good enough to be imperceptible"

http://66.96.216.160/cgi-bin/YaBB.pl?board=c&action=display&num=1010178496 for some interesting details on a resampling test

[Slogra]

Originally posted by tangent
Lame's inbuilt one is amongst those which are "good enough to be imperceptible"


Is it possible to downsample, normalize and encode to mp3 with LAME with just one command line? What would the command line look like when i want to, let's say, encode to ABR 112kbps, normalize and downsample to 44.1khz?

edit: darn normalize is hard word to type :mad:

[lar1r]

Thx guys for the info.

I just made a .bat file for ssrc to convert the wav.
I am making ogg sound files so the other software is useless for me.

(note: should I just be capturing the wav at 32000 instead of 44100 - this is for capturing tv shows)


Thx


For the MP3 question, I took a look at the great Razorlame interface which looks like it doesn't have the normalize function so I would guess that this isn't built into LAME

[MaTTeR]

@lar1r

Why aren't you using HeadAC3he to create your Ogg files and have it downsample to 44k also? It's very easy and works flawlessly for me. The downsample is done by SSRC for you.

I think you might find it a little more useful then the method your using;)

[tangent]

Originally posted by Slogra


Is it possible to downsample, normalize and encode to mp3 with LAME with just one command line? What would the command line look like when i want to, let's say, encode to ABR 112kbps, normalize and downsample to 44.1khz?

edit: darn normalize is hard word to type :mad:

"--alt-preset 112 --resample 44.1"
Lame doesn't normalize, but allows you to scale. If your sound is already at max, the --alt-preset has a default --scale value to minimize clipping.

My prefered method is to use "--alt-preset 112 --scale 1 --resample 44.1" and then use mp3gain after that to do max noclip normalizing.