Hi,

What is the easiest way to get Matlab fft data into Csound? Does anyone know if Matlab can export to the PVOCEX format to be read by pvsfread?

Sigurd

Sigurd,

there are several ways:

1) as you said, write a binary PVOCEX
2) write a text file and convert using pv_import
3) write two text files and load them onto tables (amp, freq).

Regards
========================
Dr Victor Lazzarini
Senior Lecturer
NUI Maynooth, Ireland
victor dot lazzarini at nuim dot ie




On 29 Aug 2014, at 13:08, Sigurd Saue  wrote:

> Hi,
> 
> What is the easiest way to get Matlab fft data into Csound? Does anyone know if Matlab can export to the PVOCEX format to be read by pvsfread?
> 
> Sigurd
> 
> 
> Send bugs reports to
>        https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
> 
> 
> 

Thanks Victor,

As far as I know Matlab does not support the first option, so we'll just go with one of the other.

Thanks! And see you in Erlangen, I guess?

Sigurd

-----Original Message-----
From: Victor Lazzarini [mailto:Victor.Lazzarini@nuim.ie] 
Sent: Friday, August 29, 2014 2:37 PM
To: csound@lists.bath.ac.uk
Subject: Re: [Csnd] fft data from Matlab to Csound

Sigurd,

there are several ways:

1) as you said, write a binary PVOCEX
2) write a text file and convert using pv_import
3) write two text files and load them onto tables (amp, freq).

Regards
========================
Dr Victor Lazzarini
Senior Lecturer
NUI Maynooth, Ireland
victor dot lazzarini at nuim dot ie




On 29 Aug 2014, at 13:08, Sigurd Saue  wrote:

> Hi,
> 
> What is the easiest way to get Matlab fft data into Csound? Does anyone know if Matlab can export to the PVOCEX format to be read by pvsfread?
> 
> Sigurd
> 
> 
> Send bugs reports to
>        https://github.com/csound/csound/issues
> 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
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Sorry, I will not be able to make it to Erlangen, but my colleague Joe will be there.
========================
Dr Victor Lazzarini
Dean of Faculty of Arts, Philosophy and Celtic Studies,
Maynooth University,
Maynooth, Co Kildare, Ireland
Tel: 00 353 7086936
Fax: 00 353 1 7086952 







On 31 Aug 2014, at 21:58, Sigurd Saue  wrote:

> Thanks Victor,
> 
> As far as I know Matlab does not support the first option, so we'll just go with one of the other.
> 
> Thanks! And see you in Erlangen, I guess?
> 
> Sigurd
> 
> -----Original Message-----
> From: Victor Lazzarini [mailto:Victor.Lazzarini@nuim.ie] 
> Sent: Friday, August 29, 2014 2:37 PM
> To: csound@lists.bath.ac.uk
> Subject: Re: [Csnd] fft data from Matlab to Csound
> 
> Sigurd,
> 
> there are several ways:
> 
> 1) as you said, write a binary PVOCEX
> 2) write a text file and convert using pv_import
> 3) write two text files and load them onto tables (amp, freq).
> 
> Regards
> ========================
> Dr Victor Lazzarini
> Senior Lecturer
> NUI Maynooth, Ireland
> victor dot lazzarini at nuim dot ie
> 
> 
> 
> 
> On 29 Aug 2014, at 13:08, Sigurd Saue  wrote:
> 
>> Hi,
>> 
>> What is the easiest way to get Matlab fft data into Csound? Does anyone know if Matlab can export to the PVOCEX format to be read by pvsfread?
>> 
>> Sigurd
>> 
>> 
>> Send bugs reports to
>>       https://github.com/csound/csound/issues
>> 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
>        https://github.com/csound/csound/issues
> 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
>        https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
> 
> 
> 

As I find this idea exciting I thought I'd follow this up with a quick question: couldn't one write a binary PVOCEX from Matlab (and GNU Octave) using e.g. fprintf if the format of PVOCEX is known? Is it known?

Regards,
Anders



31 aug 2014 kl. 22:58 skrev Sigurd Saue :

> Thanks Victor,
> 
> As far as I know Matlab does not support the first option, so we'll just go with one of the other.
> 
> Thanks! And see you in Erlangen, I guess?
> 
> Sigurd
> 
> -----Original Message-----
> From: Victor Lazzarini [mailto:Victor.Lazzarini@nuim.ie] 
> Sent: Friday, August 29, 2014 2:37 PM
> To: csound@lists.bath.ac.uk
> Subject: Re: [Csnd] fft data from Matlab to Csound
> 
> Sigurd,
> 
> there are several ways:
> 
> 1) as you said, write a binary PVOCEX
> 2) write a text file and convert using pv_import
> 3) write two text files and load them onto tables (amp, freq).
> 
> Regards
> ========================
> Dr Victor Lazzarini
> Senior Lecturer
> NUI Maynooth, Ireland
> victor dot lazzarini at nuim dot ie
> 
> 
> 
> 
> On 29 Aug 2014, at 13:08, Sigurd Saue  wrote:
> 
>> Hi,
>> 
>> What is the easiest way to get Matlab fft data into Csound? Does anyone know if Matlab can export to the PVOCEX format to be read by pvsfread?
>> 
>> Sigurd
>> 
>> 
>> Send bugs reports to
>>       https://github.com/csound/csound/issues
>> 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
>        https://github.com/csound/csound/issues
> 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
>        https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
> 
> 
> 

PVOCEX is not a text file, so fprintf() would not be suitable. But if Matlab can write binary data, then it’s possible. PVOCEX is based
on WAVEFORMATEX and it is documented somewhere (Richard Dobson is the author).
========================
Dr Victor Lazzarini
Dean of Faculty of Arts, Philosophy and Celtic Studies,
Maynooth University,
Maynooth, Co Kildare, Ireland
Tel: 00 353 7086936
Fax: 00 353 1 7086952 







On 1 Sep 2014, at 06:30, Anders Genell  wrote:

> As I find this idea exciting I thought I'd follow this up with a quick question: couldn't one write a binary PVOCEX from Matlab (and GNU Octave) using e.g. fprintf if the format of PVOCEX is known? Is it known?
> 
> Regards,
> Anders
> 
> 
> 
> 31 aug 2014 kl. 22:58 skrev Sigurd Saue :
> 
>> Thanks Victor,
>> 
>> As far as I know Matlab does not support the first option, so we'll just go with one of the other.
>> 
>> Thanks! And see you in Erlangen, I guess?
>> 
>> Sigurd
>> 
>> -----Original Message-----
>> From: Victor Lazzarini [mailto:Victor.Lazzarini@nuim.ie] 
>> Sent: Friday, August 29, 2014 2:37 PM
>> To: csound@lists.bath.ac.uk
>> Subject: Re: [Csnd] fft data from Matlab to Csound
>> 
>> Sigurd,
>> 
>> there are several ways:
>> 
>> 1) as you said, write a binary PVOCEX
>> 2) write a text file and convert using pv_import
>> 3) write two text files and load them onto tables (amp, freq).
>> 
>> Regards
>> ========================
>> Dr Victor Lazzarini
>> Senior Lecturer
>> NUI Maynooth, Ireland
>> victor dot lazzarini at nuim dot ie
>> 
>> 
>> 
>> 
>> On 29 Aug 2014, at 13:08, Sigurd Saue  wrote:
>> 
>>> Hi,
>>> 
>>> What is the easiest way to get Matlab fft data into Csound? Does anyone know if Matlab can export to the PVOCEX format to be read by pvsfread?
>>> 
>>> Sigurd
>>> 
>>> 
>>> Send bugs reports to
>>>      https://github.com/csound/csound/issues
>>> 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
>>       https://github.com/csound/csound/issues
>> 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
>>       https://github.com/csound/csound/issues
>> 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
>        https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
> 
> 
> 

PVOCEX is not a text file, so fprintf() would not be suitable. But if Matlab can write binary data, then it’s possible. PVOCEX is based
on WAVEFORMATEX and it is documented somewhere (Richard Dobson is the author).
========================
Dr Victor Lazzarini
Dean of Faculty of Arts, Philosophy and Celtic Studies,
Maynooth University,
Maynooth, Co Kildare, Ireland
Tel: 00 353 7086936
Fax: 00 353 1 7086952







On 1 Sep 2014, at 06:30, Anders Genell <anders.genell@gmail.com> wrote:

As I find this idea exciting I thought I'd follow this up with a quick question: couldn't one write a binary PVOCEX from Matlab (and GNU Octave) using e.g. fprintf if the format of PVOCEX is known? Is it known?

Regards,

Anders

31 aug 2014 kl. 22:58 skrev Sigurd Saue <sigurd.saue@ntnu.no>:

Thanks Victor,

As far as I know Matlab does not support the first option, so we'll just go with one of the other.

Thanks! And see you in Erlangen, I guess?

Sigurd

-----Original Message-----

From: Victor Lazzarini [mailto:Victor.Lazzarini@nuim.ie]

Sent: Friday, August 29, 2014 2:37 PM

To: csound@lists.bath.ac.uk

Subject: Re: [Csnd] fft data from Matlab to Csound

Sigurd,

there are several ways:

1) as you said, write a binary PVOCEX

2) write a text file and convert using pv_import

3) write two text files and load them onto tables (amp, freq).

Regards

========================

Dr Victor Lazzarini

Senior Lecturer

NUI Maynooth, Ireland

victor dot lazzarini at nuim dot ie

On 29 Aug 2014, at 13:08, Sigurd Saue <sigurd.saue@ntnu.no> wrote:

Hi,

What is the easiest way to get Matlab fft data into Csound? Does anyone know if Matlab can export to the PVOCEX format to be read by pvsfread?

Sigurd

Send bugs reports to

    https://github.com/csound/csound/issues

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

     https://github.com/csound/csound/issues

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

     https://github.com/csound/csound/issues

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

      https://github.com/csound/csound/issues

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
       https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here
To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

On 01/09/2014 07:39, Anders Genell wrote:
> Oh, my bad, I meant fwrite
> http://www.mathworks.se/help/matlab/ref/fwrite.html
>
> I don't know if there is enough control of format to fit PVOCEX but it
> might be worth a try?
>
> I found this http://people.bath.ac.uk/masrwd/pvocex/pvocex.html and will
> try to wrap my stale brain around it...
>

Yes, that's the main reference. In theory one could write an extension 
matlab library for pvocex (I think for example there is a libsndfile one 
somewhere), but as usual I never got around to it.

Richard Dobson

If I manage to free some time I will se what I can do using the binary writing capabilities of Matlab. 

Quickly browsing your main reference I assume PVOCEX is more or less an interleaved wav-file (but containing spectral data) with a particular header?

Regards,
Anders



2 sep 2014 kl. 14:59 skrev Richard Dobson :

> On 01/09/2014 07:39, Anders Genell wrote:
>> Oh, my bad, I meant fwrite
>> http://www.mathworks.se/help/matlab/ref/fwrite.html
>> 
>> I don't know if there is enough control of format to fit PVOCEX but it
>> might be worth a try?
>> 
>> I found this http://people.bath.ac.uk/masrwd/pvocex/pvocex.html and will
>> try to wrap my stale brain around it...
> 
> Yes, that's the main reference. In theory one could write an extension matlab library for pvocex (I think for example there is a libsndfile one somewhere), but as usual I never got around to it.
> 
> Richard Dobson
> 
> 
> 
> 
> Send bugs reports to
>       https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
> 
> 
> 

I’m close to finishing HDF5 file read and write opcodes for Csound, Matlab can read those so if anyone is interested I’ll post back here when I finish them.

Ed

> On 2 Sep 2014, at 15:35, Anders Genell  wrote:
> 
> If I manage to free some time I will se what I can do using the binary writing capabilities of Matlab. 
> 
> Quickly browsing your main reference I assume PVOCEX is more or less an interleaved wav-file (but containing spectral data) with a particular header?
> 
> Regards,
> Anders
> 
> 
> 
> 2 sep 2014 kl. 14:59 skrev Richard Dobson :
> 
>> On 01/09/2014 07:39, Anders Genell wrote:
>>> Oh, my bad, I meant fwrite
>>> http://www.mathworks.se/help/matlab/ref/fwrite.html
>>> 
>>> I don't know if there is enough control of format to fit PVOCEX but it
>>> might be worth a try?
>>> 
>>> I found this http://people.bath.ac.uk/masrwd/pvocex/pvocex.html and will
>>> try to wrap my stale brain around it...
>> 
>> Yes, that's the main reference. In theory one could write an extension matlab library for pvocex (I think for example there is a libsndfile one somewhere), but as usual I never got around to it.
>> 
>> Richard Dobson
>> 
>> 
>> 
>> 
>> Send bugs reports to
>>      https://github.com/csound/csound/issues
>> 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
>        https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
> 
> 
> 

On 02/09/2014 15:35, Anders Genell wrote:
> If I manage to free some time I will se what I can do using the
> binary writing capabilities of Matlab.
>
> Quickly browsing your main reference I assume PVOCEX is more or less
> an interleaved wav-file (but containing spectral data) with a
> particular header?
>
> Regards, Anders
>

Well, interleaved analysis frames (as in standard CARL/Dolson pvoc), 
with a custom WAVE_EX header.

Richard Dobson