KVR Audio

kmmcdonald · Post by **kmmcdonald** » Tue Sep 13, 2011 3:36 am

What is a good audio editor with which I can edit 64-bit .wav sample files?

I have Audacity, but that will not open a 64-bit sample file.

thanks

Keith

dalor · Post by **dalor** » Tue Sep 13, 2011 3:45 am

64 bit, wow. On PC, Sony SoundFart should do it.

randyandyvandaman · Post by **randyandyvandaman** » Tue Sep 13, 2011 5:24 am

Try Adobe Audition.

Cheers

kmmcdonald · Post by **kmmcdonald** » Fri Sep 16, 2011 12:21 am

Audacity didn't work.

Pyro Audio Creator didn't work.

Wavosaur worked great!

formlabs · Post by **formlabs** » Mon Sep 19, 2011 4:23 am

What makes 64bit audio files? And for what purpose? 32 bit is more than sufficient for anything I can imagine.

- 64 bit apps do NOT (edit, oops) make make 64 bit audio files...

_B

BertKoor · Post by **BertKoor** » Mon Sep 19, 2011 7:53 am

formlabs wrote:- 64 bit apps do make make 64 bit audio files...

No they don't. They usually make 24 or 32bits audio files, and can even do 16 or 8bit ones.

Where do these 64 files originate from? With 24 or 32bit files you already have a dynamic range of 144dB, which is more than any preamp or AD/DA converter can handle.

I see no use in 64 bit audio files at all. They just take extra useless space, and maybe that makes you sleep better

formlabs · Post by **formlabs** » Mon Sep 19, 2011 8:16 am

BertKoor wrote:
formlabs wrote:- 64 bit apps do make make 64 bit audio files...
No they don't. They usually make 24 or 32bits audio files, and can even do 16 or 8bit ones.

Where do these 64 files originate from? With 24 or 32bit files you already have a dynamic range of 144dB, which is more than any preamp or AD/DA converter can handle.

I see no use in 64 bit audio files at all. They just take extra useless space, and maybe that makes you sleep better

My bad, that was a typo. I meant to say that they DO NOT. We agree with each other : )
I was wondering if the OP thought because they had some 64 bit app that they had 64 bit audio.

Btw, 32 bit are usually floating point, so they actually handle much more than 144 dB of dynamic range.

_B

SonyPCH · Post by **SonyPCH** » Mon Sep 19, 2011 5:53 pm

formlabs wrote:What makes 64bit audio files? And for what purpose? 32 bit is more than sufficient for anything I can imagine.

- 64 bit apps do NOT (edit, oops) make make 64 bit audio files...

_B

We (Sonic Foundry/Sony) defined a 64 bit RIFF format so that very large files could be created. The content is any valid format. It basically allows for 64 bit offsets to be defined in the riff header.

It has been around for some time. Most of the major vendors have adopted it.

Peter

LawrenceF · Post by **LawrenceF** » Mon Sep 19, 2011 9:24 pm

formlabs wrote:What makes 64bit audio files?

I guess this will be another [Rea-dacted] thread on KVR ...

Holy crap! Somebody better get the Sony rep above a flak jacket. I smell multiple Acid questions coming.

formlabs · Post by **formlabs** » Mon Sep 19, 2011 10:18 pm

LawrenceF wrote:
formlabs wrote:What makes 64bit audio files?
I guess this will be another [Rea-dacted] thread on KVR ...

Holy crap! Somebody better get the Sony rep above a flak jacket. I smell multiple Acid questions coming.

Can you explain when that is useful, and why it would be needed?

Thanks,
Brian

UltraJv · Post by **UltraJv** » Mon Sep 19, 2011 10:22 pm

formlabs wrote:
LawrenceF wrote:
formlabs wrote:What makes 64bit audio files?
I guess this will be another [Rea-dacted] thread on KVR ...

Holy crap! Somebody better get the Sony rep above a flak jacket. I smell multiple Acid questions coming.
Can you explain when that is useful, and why it would be needed?

Thanks,
Brian

IIRC its to do with very long recordings. 3 hours or so +

LawrenceF · Post by **LawrenceF** » Mon Sep 19, 2011 10:33 pm

formlabs wrote: Can you explain when that is useful, and why it would be needed?

Thanks,
Brian

64-bit floating point files? Not really. I don't think I suggested they were useful (over 32-bit float files), just saying they do exist so if someone saves one someone else might have to actually open it.

Why anyone would save a mix in 64-bit float? Dunno. Maybe someone who has done that can answer that question.

filkertom · Post by **filkertom** » Mon Sep 19, 2011 10:40 pm

I can see uses for it in scientific recordings, or orchestral pieces where you really want to catch the nuance of that Stradivarius. Apart from that, though, I can't think of a thing. Certainly not popular music.

Ickky · Post by **Ickky** » Tue Sep 20, 2011 2:49 pm

As SonyPCH and UltraJv said, these files are for long recordings. It's got nothing to do with extreme dynamic range.

From the Cubase manual, Export Audio Mixdown section:

Wave 64 is a proprietary format developed by Sonic
Foundry Inc. In terms of audio quality, Wave 64 files are
identical to standard wave files, but in the file headers
Wave 64 files use 64-bit values for addressing where wave
files use 32-bit values. The consequence of this is that
Wave 64 files can be considerably larger than standard
Wave files. Wave 64 is therefore a good file format choice
for really long recordings (file sizes over 2GB), e.g. live surround
recordings. Wave 64 files have the extension ".w64".

LawrenceF · Post by **LawrenceF** » Tue Sep 20, 2011 5:31 pm

I actually wasn't talking about Wave64, which is just an option there in the graphic that happens to be checked. I was talking about rendering a 64-bit float file... even if the file is only 3 minutes (or 15 seconds) long.

One thing (afaik, at least there) really has nothing to do with the other.

In this case (I would assume) the actual file would be 64-bit float with no truncation or similar from the double precision internal processing... like 32-bit float renders are.

You guys do bounce (instruments and similar) to 32-bit float right?

audio editor for 64-bit .wav files