you can try pvsdemix.

Victor

On 25 Oct 2010, at 17:56, Anthony Palomba wrote:

I want to be able to extract a sound from a recording.
Lets say for example it is a guitar line. I was wondering
if you guys could suggest what would be the best strategy
to extract a target spectrum from its surrounding spectrum
using csound.




Thanks,
Anthony

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I once extracted a single oboe note from a polyphonic orchestral mass, transposed it up by a semitone (the soloist had played the wrong note!) and added the transposed version to the orchestra. This was only one note but took a good part of an evening to extract it with audiosculpt. I did it all by hand, filtering the fundamental frequency and all the harmonics of the oboe note one by one by drawing in filters on top of the sonogram. I think to get a really convincing result with a longer part is near impossible or too time consuming. Might be quicker to record the whole thing from scratch!

Best,

Peiman

On 25 October 2010 18:14, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

you can try pvsdemix.

Victor

On 25 Oct 2010, at 17:56, Anthony Palomba wrote:

I want to be able to extract a sound from a recording.
Lets say for example it is a guitar line. I was wondering
if you guys could suggest what would be the best strategy
to extract a target spectrum from its surrounding spectrum
using csound.




Thanks,
Anthony

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> Or just use a tool designed for jobs like this, something like SPEAR
> (http://www.klingbeil.com/spear/ )
>
>

As far as I know spear is a MAC-only program.  Anyone know of an
equivalent for other platforms, and espcially a FOSS program?

==JOhn ff

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Or just use a tool designed for jobs like this, something like SPEAR
(http://www.klingbeil.com/spear/ )


-Toby

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As I understand it SPEAR would give me an SDIF file
that amplitude trajectories of all the partials in a sound
recording.

Does SPEAR also do the masking part?



-ap

On Tue, Oct 26, 2010 at 9:01 AM, Toby Chappell <saturnin@fastmail.fm> wrote:

Or just use a tool designed for jobs like this, something like SPEAR
(http://www.klingbeil.com/spear/ )


-Toby

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With masking data you can definitely do the job in Csound. Just make user defined opcode to read and write the data to/from tables.

SPEAR is good for analysis and works fine with really sustained sounds but I don't think it would give a usable result for this purpose.

Peiman

On 26 October 2010 15:10, Anthony Palomba <apalomba@austin.rr.com> wrote:

As I understand it SPEAR would give me an SDIF file
that amplitude trajectories of all the partials in a sound
recording.

Does SPEAR also do the masking part?



-ap

On Tue, Oct 26, 2010 at 9:01 AM, Toby Chappell <saturnin@fastmail.fm> wrote:

Or just use a tool designed for jobs like this, something like SPEAR
(http://www.klingbeil.com/spear/ )


-Toby

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With masking data you can definitely do the job in Csound. Just make user defined opcode to read and write the data to/from tables.

SPEAR is good for analysis and works fine with really sustained sounds but I don't think it would give a usable result for this purpose.

Peiman

On 26 October 2010 15:10, Anthony Palomba <apalomba@austin.rr.com> wrote:

As I understand it SPEAR would give me an SDIF file
that amplitude trajectories of all the partials in a sound
recording.

Does SPEAR also do the masking part?



-ap

On Tue, Oct 26, 2010 at 9:01 AM, Toby Chappell <saturnin@fastmail.fm> wrote:

Or just use a tool designed for jobs like this, something like SPEAR
(http://www.klingbeil.com/spear/ )


-Toby

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"Just make user defined opcode to read and write the data to/from tables"

So what would I be loading in the tables? The envelop of the partial? What would I
use to then remove all but that partial, some FFT opcode?



-ap


Alternately could I use ATS opcodes to do this?

On Tue, Oct 26, 2010 at 11:18 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:

With masking data you can definitely do the job in Csound. Just make user defined opcode to read and write the data to/from tables.

SPEAR is good for analysis and works fine with really sustained sounds but I don't think it would give a usable result for this purpose.

Peiman

On 26 October 2010 15:10, Anthony Palomba <apalomba@austin.rr.com> wrote:

As I understand it SPEAR would give me an SDIF file
that amplitude trajectories of all the partials in a sound
recording.

Does SPEAR also do the masking part?



-ap

On Tue, Oct 26, 2010 at 9:01 AM, Toby Chappell <saturnin@fastmail.fm> wrote:

Or just use a tool designed for jobs like this, something like SPEAR
(http://www.klingbeil.com/spear/ )


-Toby

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What is your material exactly? Do you have a version of the recording without the sound that you want to isolate? How will you make the masking track if not?

You can make a sort of dynamic version of pvsmaska in which the masking table changes window by window, as long as you have a version of the sound without the material you want to isolate. Otherwise I don't know how you would make a masking signal.

To read/write to table you would use pvsftr and pvsftw. Unless your sound is harmonic and relatively stable partial tracking wont give you a good result in my experience.


Best,

Peiman

On 26 October 2010 17:24, Anthony Palomba <apalomba@austin.rr.com> wrote:

"Just make user defined opcode to read and write the data to/from tables"

So what would I be loading in the tables? The envelop of the partial? What would I
use to then remove all but that partial, some FFT opcode?



-ap


Alternately could I use ATS opcodes to do this?

On Tue, Oct 26, 2010 at 11:18 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:

With masking data you can definitely do the job in Csound. Just make user defined opcode to read and write the data to/from tables.

SPEAR is good for analysis and works fine with really sustained sounds but I don't think it would give a usable result for this purpose.

Peiman

On 26 October 2010 15:10, Anthony Palomba <apalomba@austin.rr.com> wrote:

As I understand it SPEAR would give me an SDIF file
that amplitude trajectories of all the partials in a sound
recording.

Does SPEAR also do the masking part?



-ap

On Tue, Oct 26, 2010 at 9:01 AM, Toby Chappell <saturnin@fastmail.fm> wrote:

Or just use a tool designed for jobs like this, something like SPEAR
(http://www.klingbeil.com/spear/ )


-Toby

Send bugs reports to the Sourceforge bug tracker
           https://sourceforge.net/tracker/?group_id=81968&atid=564599
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To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

I have no exact material in mind. I would create the masking track with
the closest sample set that I have.

On Tue, Oct 26, 2010 at 3:54 PM, peiman khosravi <peimankhosravi@gmail.com> wrote:

What is your material exactly? Do you have a version of the recording without the sound that you want to isolate? How will you make the masking track if not?

You can make a sort of dynamic version of pvsmaska in which the masking table changes window by window, as long as you have a version of the sound without the material you want to isolate. Otherwise I don't know how you would make a masking signal.

To read/write to table you would use pvsftr and pvsftw. Unless your sound is harmonic and relatively stable partial tracking wont give you a good result in my experience.


Best,

Peiman

On 26 October 2010 17:24, Anthony Palomba <apalomba@austin.rr.com> wrote:

"Just make user defined opcode to read and write the data to/from tables"

So what would I be loading in the tables? The envelop of the partial? What would I
use to then remove all but that partial, some FFT opcode?



-ap


Alternately could I use ATS opcodes to do this?

On Tue, Oct 26, 2010 at 11:18 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:

With masking data you can definitely do the job in Csound. Just make user defined opcode to read and write the data to/from tables.

SPEAR is good for analysis and works fine with really sustained sounds but I don't think it would give a usable result for this purpose.

Peiman

On 26 October 2010 15:10, Anthony Palomba <apalomba@austin.rr.com> wrote:

As I understand it SPEAR would give me an SDIF file
that amplitude trajectories of all the partials in a sound
recording.

Does SPEAR also do the masking part?



-ap

On Tue, Oct 26, 2010 at 9:01 AM, Toby Chappell <saturnin@fastmail.fm> wrote:

Or just use a tool designed for jobs like this, something like SPEAR
(http://www.klingbeil.com/spear/ )


-Toby

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"

That should work then I guess. But again having audiosculpt might be really useful as it allows you to load a midi file unto your sonogram and use each midi note as a filter (band pass or reject).

Time to go to bed now!

P

On 26 October 2010 22:17, Anthony Palomba <apalomba@austin.rr.com> wrote:

I have no exact material in mind. I would create the masking track with
the closest sample set that I have.

On Tue, Oct 26, 2010 at 3:54 PM, peiman khosravi <peimankhosravi@gmail.com> wrote:

What is your material exactly? Do you have a version of the recording without the sound that you want to isolate? How will you make the masking track if not?

You can make a sort of dynamic version of pvsmaska in which the masking table changes window by window, as long as you have a version of the sound without the material you want to isolate. Otherwise I don't know how you would make a masking signal.

To read/write to table you would use pvsftr and pvsftw. Unless your sound is harmonic and relatively stable partial tracking wont give you a good result in my experience.


Best,

Peiman

On 26 October 2010 17:24, Anthony Palomba <apalomba@austin.rr.com> wrote:

"Just make user defined opcode to read and write the data to/from tables"

So what would I be loading in the tables? The envelop of the partial? What would I
use to then remove all but that partial, some FFT opcode?



-ap


Alternately could I use ATS opcodes to do this?

On Tue, Oct 26, 2010 at 11:18 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:

With masking data you can definitely do the job in Csound. Just make user defined opcode to read and write the data to/from tables.

SPEAR is good for analysis and works fine with really sustained sounds but I don't think it would give a usable result for this purpose.

Peiman

On 26 October 2010 15:10, Anthony Palomba <apalomba@austin.rr.com> wrote:

As I understand it SPEAR would give me an SDIF file
that amplitude trajectories of all the partials in a sound
recording.

Does SPEAR also do the masking part?



-ap

On Tue, Oct 26, 2010 at 9:01 AM, Toby Chappell <saturnin@fastmail.fm> wrote:

Or just use a tool designed for jobs like this, something like SPEAR
(http://www.klingbeil.com/spear/ )


-Toby

Send bugs reports to the Sourceforge bug tracker
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Discussions of bugs and features can be posted here
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