What is fast and what is slow?

[WKD]

I have read a number of threads on this topic but they all have different variables. Here is my setup:
P4 3.0 GHz
1GB ram
7200RPM HD
DBpoweramp ver 11.5r

Now I am in the process of backing up my CDs to lossless WMA and then I plan to convert them to whatever format I need. Right now I am testing WMA Lossless to MP3 VBR 112 - 160 bitrate conversion and I get between 5x and 7x realtime encoding. I know from ripping I get much higher speeds encoding to WMA from CD (typically 20x encoding speed, depends on the CD quality). I suspect this is normal when going from one format to another but looking for some confirmation here.

[Spoon]

Re: What is fast and what is slow?

Mp3 Lame is quite slow (depending upon the settings used).

[Deano]

Re: What is fast and what is slow?

I find LAME to be slow in general when ripping to VBR mp3's. It seems to go a whole lot faster on Constant Bit Rate files.

On average when ripping to :

alt-preset-standard > 10x Realtime Encoding
alt-preset-insane > 19x Realtime Encoding (bear in mind this is 320kbps CBR)

Almost twice the speed. I do have an Athlon FX-53 with 1gb RAM though. So my figures are probably not comparable to your general ripping speeds. These tests are also done directly from FLAC (that I rip from CD), to mp3's for my mp3 player.

[gameplaya15143]

Re: What is fast and what is slow?

vbr-new is about twice as fast as vbr-old (but i dont think you can change it with the 'built in' mp3 encoder)

i have a P4 2.4ghz and i get about the same speed with it (5-7x)

wma is faster... but wma seems tweaked for speed instead of quality
(all i am saying with that is i think wma could be much better if slowed down)

if you want to encode faster, use the lame cli plugin and use -q 9 or something (i can get like 37x with that, but quality sucks when encoding that fast)

[neilthecellist]

Re: What is fast and what is slow?

I have read a number of threads on this topic but they all have different variables. Here is my setup:
P4 3.0 GHz
1GB ram
7200RPM HD
DBpoweramp ver 11.5r

Now I am in the process of backing up my CDs to lossless WMA and then I plan to convert them to whatever format I need. Right now I am testing WMA Lossless to MP3 VBR 112 - 160 bitrate conversion and I get between 5x and 7x realtime encoding. I know from ripping I get much higher speeds encoding to WMA from CD (typically 20x encoding speed, depends on the CD quality). I suspect this is normal when going from one format to another but looking for some confirmation here.

Well, your processor beats mine. As with your RAM... If you've got 333 mhz RAM or faster, be happy with your current realtime encoding speed (5x - 7x).

In other words, I'm confirming your hypothesis that conversions from WMA Lossless to MP3 VBR 112 - 160 kbps is normal.

Have fun with dBpowerAMP.

[brian10161]

Re: What is fast and what is slow?

i know theres a lot of people out there that are against FastENC, but i use this encoder a lot. On my athlon 1800+ i get over 40X encoding speeds. just set it to aroun 150kbps, and that should be good. everyone says that they have a stereo colapse problem, but if your just going to be listening to it on a portable mp3 player, i really doubt you'll be able to tell. i realize its a command line encoder, but try using it with audiograbber. i swear by dbpoweramp, dont get me wrong, but i like audiograbber for ripping cd's and converting to mp3 with fastenc. its so easy. hope you have some luck with this.