Merging Technologies

Hi, I've Pyramix Native 8.1. When I do a mixdown (from 96 khz 24 bit audio) to MP3 format it displays a failed message.
I read about a key, but I not understand what kind of key I need.

Thanks

Classic wrote:Hi, I've Pyramix Native 8.1. When I do a mixdown (from 96 khz 24 bit audio) to MP3 format it displays a failed message.

There was a bug, supposedly fixed in the version 8.0.10 release, where mixdown or publishing to MP3 at Sample Rates above 48 kHz. would fail if the MP3 Sample Rate conversion setting was set to "No Change". For what it's worth, I too was unable to mix to MP3 from a 96 kHz. session unless I enabled SRC to mix to 48 kHz. SR.

The work-around would be either to mix using Pyramix's SRC, or mix to a WAV file, and then use a third party converter to create an MP3 from that.

Classic wrote:I read about a key, but I not understand what kind of key I need.

You need the "Advanced Audio Codec Support" key to provide you with the capability of using/mixing/publishing to FLAC, Ogg Vorbis, AAC and MP3 files. Contact your dealer for details.

I own this key, but as noted before, I could not mix to MP3 at any SR over 48 kHz.

Hello Frank thanks for your help but:

- I have the "advanced Audio Codec Support"
- When I do a MIXDOWN Pyramix shows: "failed to create media" E:/XXX/XXX/XXX (directory)
- When I do a CONVERT (from BWF files to MP3) Pyramix shows: "Error when creating a media. Check for write protection and sufficient disk space." (But I've a lot of disk space and windows' folders aren't protected)

I've Pyramix Native Mastering Edition, last version 8.1.9 (Hotfix 2.21 build 1615)

You need to check the box labelled "unique filename extension". Since PMx doesnt overwrite files, it pops up with a generic Error message.
Or: you could delete the file prior to overwriting from within the Media Manager. right click - delete media.

The MP3 conversion work fine up to 48khz. Need to convert.

I've been uncertain about what Sample Rates are supported by the MP3 specification, so I did a little digging on Wikipedia: http://en.wikipedia.org/wiki/MP3.

According to the ISO/IEC standard quoted there: http://en.wikipedia.org/wiki/ISO/IEC_11172-3, MP3s only support sample rates up to 48 kHz. and no higher, so it stands to reason that any attempt to convert higher SR files directly to MP3 will result in an error. It's too bad that Pyramix doesn't give you a more informative error message.

I suspect that any third party program that converts high sample rate WAV files to MP3 will perform some Sample Rate Conversion down to 48 kHz., quite possibly in a way that is transparent to the user, so you wouldn't know necessarily.

I will post a link to this message as a reply to your post in the Suggestions. However, if I'm wrong about this limitation, please chime in and enlighten me.

Thank you Frank, I come from Samplitude/Sequoia that does it.

Classic wrote:Thank you Frank, I come from Samplitude/Sequoia that does it.

When you create an MP3 from a high sample rate WAV in Sequoia, and then open the MP3 in a player like QuickTime or Foobar - what sample rate does it show? I'm wondering whether Sequoia performs some SRC automatically in a way not immediately apparent to the user - or maybe the MP3 spec has evolved?

I don't know, and it would be nice to find out for sure. FWIW, I've found that AACs sound better and yield smaller file sizes for comparable bitrates, but are also limited to 48 kHz. At least lossless formats like FLAC and ALC allow higher rates, while giving some reduction in file size. Personally, I wish the lossy stuff would just go away, but that's not likely until the whole world has broadband.

fl wrote:

Classic wrote:Thank you Frank, I come from Samplitude/Sequoia that does it.

When you create an MP3 from a high sample rate WAV in Sequoia, and then open the MP3 in a player like QuickTime or Foobar - what sample rate does it show?

44.1 khz.