Subject:Help please, Batch cvtr and mp3 spec

Posted by: jaydeeee

Date:11/29/2005 10:59:39 AM

Using sony batch converter (5.0b), when batching mp3's, how can one force the sample rate of 8khz 32kbps, mono .mp3?
Any way around this?
I need this for a client and would prefer to use sony Batch Converter.

The only option is 11,025khz, 32kbps, mono and I need 8000khz 32kbps, mono.

Are there any other batch converters out there that can output this if no joy?
Freeware?
Please let me know.

Subject:RE: Help please, Batch cvtr and mp3 spec

Reply by: rraud

Date:11/29/2005 4:51:39 PM

LAME can do this, on a single file or a batch. However many agree that the SF MP3 encodes a better quality MP3 in lower bps rates. But if SF can't do a certain rate, LAME offers almost any rate and other parameters as well, and even more if one wants to tweak the preset code file.
To get the free LAME search Source Forge or Google.

Subject:RE: Help please, Batch cvtr and mp3 spec

Reply by: jaydeeee

Date:11/29/2005 10:13:27 PM

Thanks I'll try it.

Yeah, it's just a particular spec for a client so i hope lame will do it.
It would be great if it were adjustable in the sfmp3.

Subject:RE: Help please, Batch cvtr and mp3 spec

Reply by: rraud

Date:11/30/2005 5:10:07 PM

Yes, LAME will do it.
I had a client that wanted mono 256kbs MP3s. No if's, and's or but's. Sound Forge couldn't do that either, which drove me to LAME.

FYI and amusement: "LAME" stands for: "LAME Ain't an MP3 Encoder"

Edit: oh yeah, make sure you download the "rc3" ver.


http://winlame.sourceforge.net/download.php

Subject:RE: Help please, Batch cvtr and mp3 spec

Reply by: jaydeeee

Date:11/30/2005 7:36:47 PM

Are you guys sure about this? How are you setting 32kbps , 8000khz?

I dwn the winLAME-rc3-full-noinst

Subject:RE: Help please, Batch cvtr and mp3 spec

Reply by: rraud

Date:12/1/2005 3:12:04 PM

Assuming your installed LAME.
- Open LAME
- Select your Input file(s) (the files you want to make MP3s) click Next
- Set "Output Module" to Lame MP3 Encoder and set other user choice parameters such as Output destination folder ect. click Next
- From the Preset list: Select Default (this is what you probably missed) click Next
- Select all your desired parameters ie: bitrate settings , output frequency, ect, click Next
- Select the "play" button on the Encode Control to start the encoding process.
- Read the Help files

Subject:RE: Help please, Batch cvtr and mp3 spec

Reply by: jaydeeee

Date:12/1/2005 9:09:04 PM

>>- From the Preset list: Select Default (this is what you probably missed) click Next
- Select all your desired parameters ie: bitrate settings , output frequency, ect, click Next<<<

I didn't miss the default , there's no way to edit JUST the output freq to 8khz (unless choosing mpeg 2.5 - 8000khz...when I chose that,it kicked out a bunch of short, empty files , and Wmedia player 9 and 10 couldn't recognize the format when I tried to play those).
I opened them in SF8, they were blank files.

The sys is tip-top, but I wonder if something isn't setup right.

Subject:RE: Help please, Batch cvtr and mp3 spec

Reply by: Chienworks

Date:12/2/2005 4:55:42 AM

It might help us if you could find out *why* your client wants that format. We might be able to give you some quick helpful answers for them and show them that other obtainable formats are acceptable.

We have many cases at $dayjob where clients will come in with specific and unrealistic demands, and most of the time our engineers can quickly and politely point out that something more realistic is not only better, but also cheaper and easier. In almost all cases this is due to the client not understanding what they are asking for.

Subject:RE: Help please, Batch cvtr and mp3 spec

Reply by: MarkWWW

Date:12/2/2005 6:21:27 AM

I don't know WinLAME (I always use RazorLAME when I want a GUI front end for LAME) so I don't know exactly how you would configure it to do what you want, but the option string you will need to get it to pass to the LAME encoder is "-b 32 --resample 8" whch will resample the audio to 8kHz (if it is originally at some other sample rate) and then encode it at 32kbps.

If the audio you are feeding it is in stereo then you will also need to include the option to force it to export in mono, so the string will be "-b 32 -m m --resample 8" instead.

This works fine using RazorLAME as a front end and also using LAME from the command line. I expect it should be possible to set up WinLAME to do the same though I will have to leave the details to you.

Mark

Subject:RE: Help please, Batch cvtr and mp3 spec

Reply by: jaydeeee

Date:12/2/2005 4:28:23 PM

>>>>It might help us if you could find out *why* your client wants that format. We might be able to give you some quick helpful answers for them and show them that other obtainable formats are acceptable.

We have many cases at $dayjob where clients will come in with specific and unrealistic demands, and most of the time our engineers can quickly and politely point out that something more realistic is not only better, but also cheaper and easier. In almost all cases this is due to the client not understanding what they are asking for.<<<<


I totally understand what you're saying as I've done the same in many situations, but in this case it's non-negotiable - the spec is quite specific (related to a hardware spec - most likely another mobile product).

Really though, for a professional audio editor, Bcvtr and SForge is showing it's deficiencies. One shouldn't have to settle for some 3rd party app, this should have been implemented.

Subject:RE: Help please, Batch cvtr and mp3 spec

Reply by: jaydeeee

Date:12/2/2005 4:29:23 PM

>>>I don't know WinLAME (I always use RazorLAME when I want a GUI front end for LAME) so I don't know exactly how you would configure it to do what you want, but the option string you will need to get it to pass to the LAME encoder is "-b 32 --resample 8" whch will resample the audio to 8kHz (if it is originally at some other sample rate) and then encode it at 32kbps.<<

I'll give razor a shot. thnx