Anyone interested in playing Dr Rex or Acid Loops with Csound?

By which, of course, I don't just mean playing the loops but also taking
advantage of their time-stretching abilities to be able to change the tempo,
etc.

Has it already been done in Csound?
Is the topic of interest to anyone in the community?

I'm not familiar with Dr Rex loops, but I would have thought that any
time-stretching capability would be provided by the sample player.
Csound can time-stretch audio in several different ways. Playing loops
is really easy too. Beatslicing can be done using tables or by using
the bbcut opcodes. I don't write dance music but my students do, and
in our classes we've seen that for the most part Csound can replicate
any of the techniques found in commercial software.

Rory.




On 6 February 2011 17:54, Samuel Sagan  wrote:
>
> Anyone interested in playing Dr Rex or Acid Loops with Csound?
>
> By which, of course, I don't just mean playing the loops but also taking
> advantage of their time-stretching abilities to be able to change the tempo,
> etc.
>
> Has it already been done in Csound?
> Is the topic of interest to anyone in the community?
>
> --
> View this message in context: http://csound.1045644.n5.nabble.com/Playing-Dr-Rex-Loops-with-Csound-tp3373430p3373430.html
> Sent from the Csound - General mailing list archive at Nabble.com.
>
>
> Send bugs reports to the Sourceforge bug tracker
>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>
>


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Just did a search there fore Rex. It's a proprietary file format. I
don't know any way of opening Rex loops in Csound unless someone
writes an opcode for it. Failing that you can probably find a way of
extracting the audio as wave or aiff?

On 6 February 2011 18:13, Rory Walsh  wrote:
> I'm not familiar with Dr Rex loops, but I would have thought that any
> time-stretching capability would be provided by the sample player.
> Csound can time-stretch audio in several different ways. Playing loops
> is really easy too. Beatslicing can be done using tables or by using
> the bbcut opcodes. I don't write dance music but my students do, and
> in our classes we've seen that for the most part Csound can replicate
> any of the techniques found in commercial software.
>
> Rory.
>
>
>
>
> On 6 February 2011 17:54, Samuel Sagan  wrote:
>>
>> Anyone interested in playing Dr Rex or Acid Loops with Csound?
>>
>> By which, of course, I don't just mean playing the loops but also taking
>> advantage of their time-stretching abilities to be able to change the tempo,
>> etc.
>>
>> Has it already been done in Csound?
>> Is the topic of interest to anyone in the community?
>>
>> --
>> View this message in context: http://csound.1045644.n5.nabble.com/Playing-Dr-Rex-Loops-with-Csound-tp3373430p3373430.html
>> Sent from the Csound - General mailing list archive at Nabble.com.
>>
>>
>> Send bugs reports to the Sourceforge bug tracker
>>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>> Discussions of bugs and features can be posted here
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>>
>>
>


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Yeah, I find it easier to just render samples in Renoise from REX
files and cut them up that way.

On Sun, Feb 6, 2011 at 10:13 AM, Rory Walsh  wrote:
> I'm not familiar with Dr Rex loops, but I would have thought that any
> time-stretching capability would be provided by the sample player.
> Csound can time-stretch audio in several different ways. Playing loops
> is really easy too. Beatslicing can be done using tables or by using
> the bbcut opcodes. I don't write dance music but my students do, and
> in our classes we've seen that for the most part Csound can replicate
> any of the techniques found in commercial software.
>
> Rory.
>
>
>
>
> On 6 February 2011 17:54, Samuel Sagan  wrote:
>>
>> Anyone interested in playing Dr Rex or Acid Loops with Csound?
>>
>> By which, of course, I don't just mean playing the loops but also taking
>> advantage of their time-stretching abilities to be able to change the tempo,
>> etc.
>>
>> Has it already been done in Csound?
>> Is the topic of interest to anyone in the community?
>>
>> --
>> View this message in context: http://csound.1045644.n5.nabble.com/Playing-Dr-Rex-Loops-with-Csound-tp3373430p3373430.html
>> Sent from the Csound - General mailing list archive at Nabble.com.
>>
>>
>> Send bugs reports to the Sourceforge bug tracker
>>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>> Discussions of bugs and features can be posted here
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>>
>>
>
>
> Send bugs reports to the Sourceforge bug tracker
>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>
>


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Also, REX is a proprietary format owned by propellerheads and they're
pretty strict about who they license their engine to. that's why It's
only in a few pieces of software. PCM with markers are a whole
different story, but you can't support REX out of the box, especially
not anything open source.

On Sun, Feb 6, 2011 at 10:33 AM, Josh Moore  wrote:
> Yeah, I find it easier to just render samples in Renoise from REX
> files and cut them up that way.
>
> On Sun, Feb 6, 2011 at 10:13 AM, Rory Walsh  wrote:
>> I'm not familiar with Dr Rex loops, but I would have thought that any
>> time-stretching capability would be provided by the sample player.
>> Csound can time-stretch audio in several different ways. Playing loops
>> is really easy too. Beatslicing can be done using tables or by using
>> the bbcut opcodes. I don't write dance music but my students do, and
>> in our classes we've seen that for the most part Csound can replicate
>> any of the techniques found in commercial software.
>>
>> Rory.
>>
>>
>>
>>
>> On 6 February 2011 17:54, Samuel Sagan  wrote:
>>>
>>> Anyone interested in playing Dr Rex or Acid Loops with Csound?
>>>
>>> By which, of course, I don't just mean playing the loops but also taking
>>> advantage of their time-stretching abilities to be able to change the tempo,
>>> etc.
>>>
>>> Has it already been done in Csound?
>>> Is the topic of interest to anyone in the community?
>>>
>>> --
>>> View this message in context: http://csound.1045644.n5.nabble.com/Playing-Dr-Rex-Loops-with-Csound-tp3373430p3373430.html
>>> Sent from the Csound - General mailing list archive at Nabble.com.
>>>
>>>
>>> Send bugs reports to the Sourceforge bug tracker
>>>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>>> Discussions of bugs and features can be posted here
>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>>>
>>>
>>
>>
>> Send bugs reports to the Sourceforge bug tracker
>>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>> Discussions of bugs and features can be posted here
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>>
>>
>


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*Waves at fellow Washingtonian*

Well REX does use that, but none of the engines for auto beat slice
are that great. In most cases for anything, you end up slicing it
yourself anyways especially if there's lots of variance in tempo.

On Sun, Feb 6, 2011 at 10:32 AM, Nick Suda  wrote:
> It's an interesting idea to incorporate .rx2's transient flagging into some
> sort of opcode functionality, and certainly the file format has survived
> long enough outside of the Propellerhead product line that it would not
> become an outdate inclusion to the opcode library. I wouldn't know how to
> incorporate that kind of time-based sequencing information into the note
> list or some other kind of sequencing interface to the extent which Csound
> itself is capable, but it's a good idea.
> - Nick
>
> On Sun, Feb 6, 2011 at 1:19 PM, Rory Walsh  wrote:
>>
>> Just did a search there fore Rex. It's a proprietary file format. I
>> don't know any way of opening Rex loops in Csound unless someone
>> writes an opcode for it. Failing that you can probably find a way of
>> extracting the audio as wave or aiff?
>>
>> On 6 February 2011 18:13, Rory Walsh  wrote:
>> > I'm not familiar with Dr Rex loops, but I would have thought that any
>> > time-stretching capability would be provided by the sample player.
>> > Csound can time-stretch audio in several different ways. Playing loops
>> > is really easy too. Beatslicing can be done using tables or by using
>> > the bbcut opcodes. I don't write dance music but my students do, and
>> > in our classes we've seen that for the most part Csound can replicate
>> > any of the techniques found in commercial software.
>> >
>> > Rory.
>> >
>> >
>> >
>> >
>> > On 6 February 2011 17:54, Samuel Sagan  wrote:
>> >>
>> >> Anyone interested in playing Dr Rex or Acid Loops with Csound?
>> >>
>> >> By which, of course, I don't just mean playing the loops but also
>> >> taking
>> >> advantage of their time-stretching abilities to be able to change the
>> >> tempo,
>> >> etc.
>> >>
>> >> Has it already been done in Csound?
>> >> Is the topic of interest to anyone in the community?
>> >>
>> >> --
>> >> View this message in context:
>> >> http://csound.1045644.n5.nabble.com/Playing-Dr-Rex-Loops-with-Csound-tp3373430p3373430.html
>> >> Sent from the Csound - General mailing list archive at Nabble.com.
>> >>
>> >>
>> >> Send bugs reports to the Sourceforge bug tracker
>> >>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>> >> Discussions of bugs and features can be posted here
>> >> To unsubscribe, send email sympa@lists.bath.ac.uk with body
>> >> "unsubscribe csound"
>> >>
>> >>
>> >
>>
>>
>> Send bugs reports to the Sourceforge bug tracker
>>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
>> Discussions of bugs and features can be posted here
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
>> csound"
>>
>
>
>
> --
> Nick Suda
> Renton, WA/Brookline, MA
> nick.suda@gmail.com
> (425) 941-0093
>


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Thanks for the answer, Rory


rory walsh wrote:
> 
> I'm not familiar with Dr Rex loops, but I would have thought that any
> time-stretching capability would be provided by the sample player.
> Csound can time-stretch audio in several different ways. Playing loops
> is really easy too. Beatslicing can be done using tables or by using
> the bbcut opcodes.
> 

Dr Rex loops are not 'sound files' that can be played like .wav or .aiff
files.
Do you mean Csound can just manipulate them as if they were?

No, not unless you can extract the audio to a format recognised by
libsndfile. But don't let that put you off using Csound for that type
of processing. I use Renoise a little myself and quite like it. In the
end however I always find myself thinking of how I would achieve the
same thing using only Csound. At the moment I'm using Renoise to test
a new Csound plugin toolkit.

Rory.


On 6 February 2011 19:48, Samuel Sagan  wrote:
>
> Thanks for the answer, Rory
>
>
> rory walsh wrote:
>>
>> I'm not familiar with Dr Rex loops, but I would have thought that any
>> time-stretching capability would be provided by the sample player.
>> Csound can time-stretch audio in several different ways. Playing loops
>> is really easy too. Beatslicing can be done using tables or by using
>> the bbcut opcodes.
>>
>
> Dr Rex loops are not 'sound files' that can be played like .wav or .aiff
> files.
> Do you mean Csound can just manipulate them as if they were?
>
> --
> View this message in context: http://csound.1045644.n5.nabble.com/Playing-Dr-Rex-Loops-with-Csound-tp3373433p3373535.html
> Sent from the Csound - General mailing list archive at Nabble.com.
>
>
> Send bugs reports to the Sourceforge bug tracker
>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>
>


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Samuel Sagan wrote:

> Anyone interested in playing Dr Rex or Acid Loops with Csound?


libsndfile will open the older .REX file format just fine (they're
just a slightly mangled AIFF file).

I started work on reverse engineering the .RX2 file format, but
didn't have enought motivation to finish that work. The audio data
in these files actually seems to be encrypted. Getting over that
hurdle is probably quite a bit or work.

Erik

Also, Propellerheads are really strict about it and they've sent out
cease and desist letters to people who've even made third party refill
extractors (to get the rex files) You can still find it hovering
around the internet though.

The way I extract rex files is by rewiring reason onto a track,
highlighting the part of the pattern on the track, and then rendering
to a sample in renoise. Then I have the whole wave chunk, and can
convert the loop into a more friendly format such as standard WAV or a
wav with marker data. If I wanted to, I could also have all the
individual slices chopped up into individual audio files to
stretch/process individually..


Not everyone has this option though, before the days of rewire people
just used the export to wave function in reason. If you don't have
reason, you'll have to buy one of the larger DAWs to read the file and
convert it. It's stupid, but whatever. Software companies that cater
to pros need to make money somehow. :P

On Sun, Feb 6, 2011 at 1:50 PM, Erik de Castro Lopo
 wrote:
> Samuel Sagan wrote:
>
>> Anyone interested in playing Dr Rex or Acid Loops with Csound?
>
>
> libsndfile will open the older .REX file format just fine (they're
> just a slightly mangled AIFF file).
>
> I started work on reverse engineering the .RX2 file format, but
> didn't have enought motivation to finish that work. The audio data
> in these files actually seems to be encrypted. Getting over that
> hurdle is probably quite a bit or work.
>
> Erik
> --
> ----------------------------------------------------------------------
> Erik de Castro Lopo
> http://www.mega-nerd.com/
>
>
> Send bugs reports to the Sourceforge bug tracker
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> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>
>


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Josh Moore wrote:

> Also, Propellerheads are really strict about it and they've sent out
> cease and desist letters to people who've even made third party refill
> extractors (to get the rex files) You can still find it hovering
> around the internet though.

Well Propellerheads can send whatever letters they want, but in the
country where I live (Australia), reverse engineering file formats
for the sake of interoperability is 100% totally legal.

I've always really liked the idea of libsndfile being able to read
this format, but never enough to actually get down to it and do
the work.

Erik

Josh Moore wrote:
> 
> Also, Propellerheads are really strict about it and they've sent out
> cease and desist letters to people who've even made third party refill
> extractors (to get the rex files) You can still find it hovering
> around the internet though.
> 

Wow. Ugly. Do you know if similar problems have taken place with the Acid
format?

Erik de Castro Lopo-10 wrote:
> 
> Josh Moore wrote:
> I've always really liked the idea of libsndfile being able to read
> this format, but never enough to actually get down to it and do
> the work.
> 

What about the Acid loop format? Would you be interested in that one too?

PS BTW mega-nerd.com... :) what a name !

Samuel Sagan wrote:

> What about the Acid loop format? Would you be interested in that one too?

I'm pretty sure libsndfile already has support for that. Try

    sndfile-info 

The 'acid' metadata can be retrieved (in a C program using libsndfile)
using the sf_command SFC_GET_LOOP_INFO.

> PS BTW mega-nerd.com... :) what a name !

You think thats inappropriate? What would you suggest instead? :-)

Erik