Converting 32bit float/96khz to CD format

[Sune T. B. Nielsen]

Which is the best way if you want to convert a 32bit float (that is recorded
in 24bit) 96khz file to CDformat in Samplitude/Cool Edit/Sound Forge?

Or is there an even better way?

[Kurt Albershardt]

Sune T. B. Nielsen wrote:
> Which is the best way if you want to convert a 32bit float (that is recorded
> in 24bit) 96khz file to CDformat in Samplitude/Cool Edit/Sound Forge?

Which program are you using? Do you have a manual? Look up 'sample
rate conversion' and see what you find.

In short, you want to SRC the 24/96 file to 24/44.1, then dither to 16
bits and truncate the remaining 8 zeroes before burning.

[Sune T. B. Nielsen]

"Kurt Albershardt" > wrote in message
...
> Sune T. B. Nielsen wrote:
> > Which is the best way if you want to convert a 32bit float (that is
recorded
> > in 24bit) 96khz file to CDformat in Samplitude/Cool Edit/Sound Forge?
>
> Which program are you using? Do you have a manual? Look up 'sample
> rate conversion' and see what you find.
>
> In short, you want to SRC the 24/96 file to 24/44.1, then dither to 16
> bits and truncate the remaining 8 zeroes before burning.

OK I wasn't specific enough:

In the different programs there are several ways of doing it. E.g. in
Samplitude you can just export audio to a new file. This is very fast and it
is possible to burn the resulting file on an audio CD.

But i want to find the way where as little information (i.e. quality) as
possible is lost.

[John LeBlanc]

"Sune T. B. Nielsen" > wrote in message
...
>
> "Kurt Albershardt" > wrote in message
> ...
> > Sune T. B. Nielsen wrote:
> > > Which is the best way if you want to convert a 32bit float (that is
> recorded
> > > in 24bit) 96khz file to CDformat in Samplitude/Cool Edit/Sound Forge?
> >
> > Which program are you using? Do you have a manual? Look up 'sample
> > rate conversion' and see what you find.
> >
> > In short, you want to SRC the 24/96 file to 24/44.1, then dither to 16
> > bits and truncate the remaining 8 zeroes before burning.
>
> OK I wasn't specific enough:
>
> In the different programs there are several ways of doing it. E.g. in
> Samplitude you can just export audio to a new file. This is very fast and it
> is possible to burn the resulting file on an audio CD.
>
> But i want to find the way where as little information (i.e. quality) as
> possible is lost.


Kurt asked a question and pointed you in the direction of your answer. Didn't
you read what he said? Kurt and I use Samplitude. If we tell you how to do it in
Samplitude (and he did) but you use CEP or SF, what good is that to you?

If you want to know the general process, he answered that in the next paragraph.

In short, RTFM first.

John

[Kurt Albershardt]

Sune T. B. Nielsen wrote:
>
> i want to find the way where as little information (i.e. quality) as
> possible is lost.

Then set your SRC to maximum quality (which will take awhile, especially
on a slower machine.) After that, use the wordlength reduction
algorithm that suits your material best (e.g. pow-r 1 or 3 in Samplitude.)

[John L Rice]

"John LeBlanc" > wrote in message
...
>
> "Sune T. B. Nielsen" > wrote in message
> ...
> >
> > "Kurt Albershardt" > wrote in message
> > ...
> > > Sune T. B. Nielsen wrote:
> > > > Which is the best way if you want to convert a 32bit float (that is
> > recorded
> > > > in 24bit) 96khz file to CDformat in Samplitude/Cool Edit/Sound
Forge?
> > >
> > > Which program are you using? Do you have a manual? Look up 'sample
> > > rate conversion' and see what you find.
> > >
> > > In short, you want to SRC the 24/96 file to 24/44.1, then dither to 16
> > > bits and truncate the remaining 8 zeroes before burning.
> >
> > OK I wasn't specific enough:
> >
> > In the different programs there are several ways of doing it. E.g. in
> > Samplitude you can just export audio to a new file. This is very fast
and it
> > is possible to burn the resulting file on an audio CD.
> >
> > But i want to find the way where as little information (i.e. quality) as
> > possible is lost.
>
>
> Kurt asked a question and pointed you in the direction of your answer.
Didn't
> you read what he said? Kurt and I use Samplitude. If we tell you how to do
it in
> Samplitude (and he did) but you use CEP or SF, what good is that to you?
>
> If you want to know the general process, he answered that in the next
paragraph.
>
> In short, RTFM first.
>
> John
>


I 'think' Sune may be trying to ask which program and method will yield the
best sonic results. Sune, is the computer platform used important to you?
Either way, I wont have an answer for you, I've pretty much only used
WaveLab. Great program though.

Best of luck!

John L Rice

[Arny Krueger]

"Sune T. B. Nielsen" > wrote in message


> Which is the best way if you want to convert a 32bit float (that is
> recorded in 24bit) 96khz file to CDformat in Samplitude/Cool
> Edit/Sound Forge?

In Cool Edit use "Edit, Convert Sample Type". Read the online help for
guidance with setting the remaining parameters. You want to end up with a 16
bit sample, stereo file, sampled at 44100 Hz.

I agree that reading the manual or online help should have been your first
step.

[Sune T. B. Nielsen]

> Then set your SRC to maximum quality (which will take awhile, especially
> on a slower machine.) After that, use the wordlength reduction
> algorithm that suits your material best (e.g. pow-r 1 or 3 in Samplitude.)

Yes that was the kind of answer i was hoping for, thank you. I was too short
in my first question, sorry.

Are all programs using the same algorithms?

How do i decide which algorithm best fits my file? I will use pow-r in the
future, but i dont have a clue on what is the difference between 1, 2 and 3.
The thoroughness?

I dont know what happens behind the user interface, but i can see that
CoolEdit is much slower than the export from Samplitude, so i guess the
algorithm is better. But i do not know if that has to do with the
implementation of eg shortening the empty 8 bits or something like that...

Then i also wanted to know if there is a special converter program that all
pro PC users use?

Maybe i should explain what i do:
I use multitrack 24/96 recording a lot. I was advised to use 32 bit floating
point in stead of 24 bit - don't know why, but i do that.
Then i edit the recordings in Samplitude and when i am finished i bounce the
tracks to one stereo file in order to burn it to an audio CD.

Then i convert the mixdown file to 16/44.1 and wonder which is the best way.
I wouldn't mixdown to a 16/44.1 file directly since firstly i sometimes find
it necessary do some final mastering on this file and secondly because i am
not sure if those good filters and algorithms are applied when bouncing.

Best whishes
Sune

[Arny Krueger]

"Sune T. B. Nielsen" > wrote in message

>> Then set your SRC to maximum quality (which will take awhile,
>> especially on a slower machine.) After that, use the wordlength
>> reduction algorithm that suits your material best (e.g. pow-r 1 or 3
>> in Samplitude.)
>
> Yes that was the kind of answer i was hoping for, thank you. I was
> too short in my first question, sorry.
>
> Are all programs using the same algorithms?

Not at all.

> How do i decide which algorithm best fits my file?

Try stuff and see what gets the job done to your satisfaction.

> I will use pow-r
> in the future, but i dont have a clue on what is the difference
> between 1, 2 and 3. The thoroughness?

What do your ears tell you?

> I dont know what happens behind the user interface, but i can see that
> CoolEdit is much slower than the export from Samplitude, so i guess
> the algorithm is better. But i do not know if that has to do with the
> implementation of eg shortening the empty 8 bits or something like
> that...

Rule of thumb changing word length is fast, changing sample rates is slow.

One reason I rarely record at 24/96 any more. With 10+ GB per performance to
handle (at 24/96) just doing word length reduction on 5 GB is a very
practical alternative, especially given that the audible benefits of 96 KHz
are demonstrably zilch.

> Then i also wanted to know if there is a special converter program
> that all pro PC users use?

Another rule of thumb - nobody agrees that well about nuttin'.

> Maybe i should explain what i do:
> I use multitrack 24/96 recording a lot. I was advised to use 32 bit
> floating point in stead of 24 bit - don't know why, but i do that.
> Then i edit the recordings in Samplitude and when i am finished i
> bounce the tracks to one stereo file in order to burn it to an audio
> CD.

I think that even this little program will even do the job:

http://shibatch.sourceforge.net/ - SSRC

> Then i convert the mixdown file to 16/44.1 and wonder which is the
> best way. I wouldn't mixdown to a 16/44.1 file directly since firstly
> i sometimes find it necessary do some final mastering on this file
> and secondly because i am not sure if those good filters and
> algorithms are applied when bouncing.

I do that in CoolEdit. Quality 999, Noise shape E2, TPDF, and 2 bits of
dither in memory of crappy CD players.

[Roger W. Norman]

The obvious answer would be to try them all and find out what he likes the
best. Personally I just stick with Samplitude for everything.

--


Roger W. Norman
SirMusic Studio
Purchase your copy of the Fifth of RAP CD set at www.recaudiopro.net.
See how far $20 really goes.




"John L Rice" > wrote in message
...
>
> "John LeBlanc" > wrote in message
> ...
> >
> > "Sune T. B. Nielsen" > wrote in message
> > ...
> > >
> > > "Kurt Albershardt" > wrote in message
> > > ...
> > > > Sune T. B. Nielsen wrote:
> > > > > Which is the best way if you want to convert a 32bit float (that
is
> > > recorded
> > > > > in 24bit) 96khz file to CDformat in Samplitude/Cool Edit/Sound
> Forge?
> > > >
> > > > Which program are you using? Do you have a manual? Look up 'sample
> > > > rate conversion' and see what you find.
> > > >
> > > > In short, you want to SRC the 24/96 file to 24/44.1, then dither to
16
> > > > bits and truncate the remaining 8 zeroes before burning.
> > >
> > > OK I wasn't specific enough:
> > >
> > > In the different programs there are several ways of doing it. E.g. in
> > > Samplitude you can just export audio to a new file. This is very fast
> and it
> > > is possible to burn the resulting file on an audio CD.
> > >
> > > But i want to find the way where as little information (i.e. quality)
as
> > > possible is lost.
> >
> >
> > Kurt asked a question and pointed you in the direction of your answer.
> Didn't
> > you read what he said? Kurt and I use Samplitude. If we tell you how to
do
> it in
> > Samplitude (and he did) but you use CEP or SF, what good is that to you?
> >
> > If you want to know the general process, he answered that in the next
> paragraph.
> >
> > In short, RTFM first.
> >
> > John
> >
>
>
> I 'think' Sune may be trying to ask which program and method will yield
the
> best sonic results. Sune, is the computer platform used important to you?
> Either way, I wont have an answer for you, I've pretty much only used
> WaveLab. Great program though.
>
> Best of luck!
>
> John L Rice
>
>
>

[am]

> I think that even this little program will even do the job:
>
> http://shibatch.sourceforge.net/ - SSRC
>

I have used the shibatch SSRC to convert 48 kHz samples to 44.1kHz.
Using the high-quality mode, it did a better job than Samplitude 6 at its
highest setting, according to RMAA.

The Secret Rabbit Code (which needs to be compiled), at
http://www.mega-nerd.com/SRC/
claims to be even better than the Shibatch.

hth

[Sune T. B. Nielsen]

"am" > wrote in message
...
> > I think that even this little program will even do the job:
> >
> > http://shibatch.sourceforge.net/ - SSRC
> >
>
> I have used the shibatch SSRC to convert 48 kHz samples to 44.1kHz.
> Using the high-quality mode, it did a better job than Samplitude 6 at its
> highest setting, according to RMAA.
>
> The Secret Rabbit Code (which needs to be compiled), at
> http://www.mega-nerd.com/SRC/
> claims to be even better than the Shibatch.
>
> hth

Thank you very much
I'll go with that one.

/Sune