FPGA Central

Hi all,

Can anyone explain how to generate the stereo and decode it in channel
and R in Matlab. Need some explanation or example please!!! Woul
appreciate it...
Thankz

disney_snoopy wrote:
> Hi all,
>
> Can anyone explain how to generate the stereo and decode it in channel L
> and R in Matlab. Need some explanation or example please!!! Would
> appreciate it...
> Thankz


Study project / homework?

--

Tauno Voipio
tauno voipio (at) iki fi

disney_snoopy wrote:
> Hi all,
>
> Can anyone explain how to generate the stereo and decode it in channel L
> and R in Matlab. Need some explanation or example please!!! Would
> appreciate it...
> Thankz
>
>

?? Generate "the stereo" what? Setting aside semantic niceties, "stereo"
audio is just a two-channel audio stream or file (or 2-column matrix,
etc), presumed to be sent to two (L/R) front speakers. Nothing to
"decode".

Richard Dobson

Richard Dobson wrote:
> disney_snoopy wrote:
>> Hi all,
>>
>> Can anyone explain how to generate the stereo and decode it in channel L
>> and R in Matlab. Need some explanation or example please!!! Would
>> appreciate it...
>> Thankz
>>
>>
>
> ?? Generate "the stereo" what? Setting aside semantic niceties, "stereo"
> audio is just a two-channel audio stream or file (or 2-column matrix,
> etc), presumed to be sent to two (L/R) front speakers. Nothing to "decode".
>
> Richard Dobson


My guess is that he's attempting to simulate the
multiplex used on top of a FM radio transmission,
including the sub-carrier encoding, i.e. what you
get from the FM demodulator.

--

Tauno Voipio
tauno voipio (at) iki fi

Tauno Voipio wrote:
> Richard Dobson wrote:
>> disney_snoopy wrote:
>>> Hi all,
>>>
>>> Can anyone explain how to generate the stereo and decode it in channel L
>>> and R in Matlab. Need some explanation or example please!!! Would
>>> appreciate it...
>>> Thankz
>>>
>>>
>>
>> ?? Generate "the stereo" what? Setting aside semantic niceties,
>> "stereo" audio is just a two-channel audio stream or file (or
>> 2-column matrix, etc), presumed to be sent to two (L/R) front
>> speakers. Nothing to "decode".
>>
>> Richard Dobson
>
>
> My guess is that he's attempting to simulate the
> multiplex used on top of a FM radio transmission,
> including the sub-carrier encoding, i.e. what you
> get from the FM demodulator.
>
Hadn't thought of that. Perhaps that is an example of a question with
70% of the context assumed?

Richard Dobson

On Nov 19, 3:35*am, Tauno Voipio <tauno.voi...@notused.fi.invalid>
wrote:
> Richard Dobson wrote:
> > disney_snoopy wrote:
> >> Hi all,
>
> >> Can anyone explain how to generate the stereo and decode it in channelL
> >> and R in Matlab. Need some explanation or example please!!! Would
> >> appreciate it...
> >> Thankz
>
> > ?? Generate "the stereo" what? Setting aside semantic niceties, "stereo"
> > *audio is just a two-channel audio stream or file (or 2-column matrix,
> > etc), presumed to be sent to two (L/R) front speakers. Nothing to "decode".
>
> > Richard Dobson
>
> My guess is that he's attempting to simulate the
> multiplex used on top of a FM radio transmission,
> including the sub-carrier encoding, i.e. what you
> get from the FM demodulator.
>
> --
>
> Tauno Voipio
> tauno voipio (at) iki fi- Hide quoted text -
>
> - Show quoted text -

Hi Richard,

This is something i was think about.
Doing some research before i proposed my project.
I read from the DSP e-book and i learn of how to the FM stereo
component work... Now i was thinking how to apply to a matlab or
mathcad...
Is there a way to generate out from the software? such like generate
out the output graph that look like the component of FM stereo with
the RDS.
Is this project valuable to do?
Plz comment...

Thankz.

disney_snoopy wrote:
> On Nov 19, 3:35 am, Tauno Voipio <tauno.voi...@notused.fi.invalid>
> wrote:
>> Richard Dobson wrote:
>>> disney_snoopy wrote:
>>>> Hi all,
>>>> Can anyone explain how to generate the stereo and decode it in channel L
>>>> and R in Matlab. Need some explanation or example please!!! Would
>>>> appreciate it...
>>>> Thankz
>>> ?? Generate "the stereo" what? Setting aside semantic niceties, "stereo"
>>> audio is just a two-channel audio stream or file (or 2-column matrix,
>>> etc), presumed to be sent to two (L/R) front speakers. Nothing to "decode".
>>> Richard Dobson
>> My guess is that he's attempting to simulate the
>> multiplex used on top of a FM radio transmission,
>> including the sub-carrier encoding, i.e. what you
>> get from the FM demodulator.
>>
>> --
>>
>> Tauno Voipio
>> tauno voipio (at) iki fi- Hide quoted text -
>>
>> - Show quoted text -
>
> Hi Richard,
>
> This is something i was think about.
> Doing some research before i proposed my project.
> I read from the DSP e-book and i learn of how to the FM stereo
> component work... Now i was thinking how to apply to a matlab or
> mathcad...
> Is there a way to generate out from the software? such like generate
> out the output graph that look like the component of FM stereo with
> the RDS.
> Is this project valuable to do?
> Plz comment...
>
> Thankz.

You did not respond to my question: Homework or study project?

--

Tauno Voipio

On Nov 19, 1:41*pm, Tauno Voipio <tauno.voi...@notused.fi.invalid>
wrote:
> disney_snoopy wrote:
> > On Nov 19, 3:35 am, Tauno Voipio <tauno.voi...@notused.fi.invalid>
> > wrote:
> >> Richard Dobson wrote:
> >>> disney_snoopy wrote:
> >>>> Hi all,
> >>>> Can anyone explain how to generate the stereo and decode it in channel L
> >>>> and R in Matlab. Need some explanation or example please!!! Would
> >>>> appreciate it...
> >>>> Thankz
> >>> ?? Generate "the stereo" what? Setting aside semantic niceties, "stereo"
> >>> *audio is just a two-channel audio stream or file (or 2-column matrix,
> >>> etc), presumed to be sent to two (L/R) front speakers. Nothing to "decode".
> >>> Richard Dobson
> >> My guess is that he's attempting to simulate the
> >> multiplex used on top of a FM radio transmission,
> >> including the sub-carrier encoding, i.e. what you
> >> get from the FM demodulator.
>
> >> --
>
> >> Tauno Voipio
> >> tauno voipio (at) iki fi- Hide quoted text -
>
> >> - Show quoted text -
>
> > Hi Richard,
>
> > This is something i was think about.
> > Doing some research before i proposed my project.
> > I read from the DSP e-book and i learn of how to the FM stereo
> > component work... Now i was thinking how to apply to a matlab or
> > mathcad...
> > Is there a way to generate out from the software? such like generate
> > out the output graph that look like the component of FM stereo with
> > the RDS.
> > Is this project valuable to do?
> > Plz comment...
>
> > Thankz.
>
> You did not respond to my question: Homework or study project?
>
> --
>
> Tauno Voipio- Hide quoted text -
>
> - Show quoted text -

Hi Tauno,
Doing some research before i proposed my project.
Need to hand in my proposal next week.
So was thinking whether to proposed my theoretical as Matlab software
solution...
Any idea on Matlab?
Thankz

On Nov 19, 1:41*pm, Tauno Voipio <tauno.voi...@notused.fi.invalid>
wrote:
> disney_snoopy wrote:
> > On Nov 19, 3:35 am, Tauno Voipio <tauno.voi...@notused.fi.invalid>
> > wrote:
> >> Richard Dobson wrote:
> >>> disney_snoopy wrote:
> >>>> Hi all,
> >>>> Can anyone explain how to generate the stereo and decode it in channel L
> >>>> and R in Matlab. Need some explanation or example please!!! Would
> >>>> appreciate it...
> >>>> Thankz
> >>> ?? Generate "the stereo" what? Setting aside semantic niceties, "stereo"
> >>> *audio is just a two-channel audio stream or file (or 2-column matrix,
> >>> etc), presumed to be sent to two (L/R) front speakers. Nothing to "decode".
> >>> Richard Dobson
> >> My guess is that he's attempting to simulate the
> >> multiplex used on top of a FM radio transmission,
> >> including the sub-carrier encoding, i.e. what you
> >> get from the FM demodulator.
>
> >> --
>
> >> Tauno Voipio
> >> tauno voipio (at) iki fi- Hide quoted text -
>
> >> - Show quoted text -
>
> > Hi Richard,
>
> > This is something i was think about.
> > Doing some research before i proposed my project.
> > I read from the DSP e-book and i learn of how to the FM stereo
> > component work... Now i was thinking how to apply to a matlab or
> > mathcad...
> > Is there a way to generate out from the software? such like generate
> > out the output graph that look like the component of FM stereo with
> > the RDS.
> > Is this project valuable to do?
> > Plz comment...
>
> > Thankz.
>
> You did not respond to my question: Homework or study project?
>
> --
>
> Tauno Voipio- Hide quoted text -
>
> - Show quoted text -

Is that very important?

On Nov 19, 2:33*pm, disney_snoopy <disney_sno...@hotmail.com> wrote:
> On Nov 19, 1:41*pm, Tauno Voipio <tauno.voi...@notused.fi.invalid>
> wrote:
>
>
>
>
>
> > disney_snoopy wrote:
> > > On Nov 19, 3:35 am, Tauno Voipio <tauno.voi...@notused.fi.invalid>
> > > wrote:
> > >> Richard Dobson wrote:
> > >>> disney_snoopy wrote:
> > >>>> Hi all,
> > >>>> Can anyone explain how to generate the stereo and decode it in channel L
> > >>>> and R in Matlab. Need some explanation or example please!!! Would
> > >>>> appreciate it...
> > >>>> Thankz
> > >>> ?? Generate "the stereo" what? Setting aside semantic niceties, "stereo"
> > >>> *audio is just a two-channel audio stream or file (or 2-column matrix,
> > >>> etc), presumed to be sent to two (L/R) front speakers. Nothing to "decode".
> > >>> Richard Dobson
> > >> My guess is that he's attempting to simulate the
> > >> multiplex used on top of a FM radio transmission,
> > >> including the sub-carrier encoding, i.e. what you
> > >> get from the FM demodulator.
>
> > >> --
>
> > >> Tauno Voipio
> > >> tauno voipio (at) iki fi- Hide quoted text -
>
> > >> - Show quoted text -
>
> > > Hi Richard,
>
> > > This is something i was think about.
> > > Doing some research before i proposed my project.
> > > I read from the DSP e-book and i learn of how to the FM stereo
> > > component work... Now i was thinking how to apply to a matlab or
> > > mathcad...
> > > Is there a way to generate out from the software? such like generate
> > > out the output graph that look like the component of FM stereo with
> > > the RDS.
> > > Is this project valuable to do?
> > > Plz comment...
>
> > > Thankz.
>
> > You did not respond to my question: Homework or study project?
>
> > --
>
> > Tauno Voipio- Hide quoted text -
>
> > - Show quoted text -
>
> Is that very important?- Hide quoted text -
>
> - Show quoted text -

If the best i will proposed my theoretical software as MathCad... But
well im not that good in Mathcad so i choosed Matlab.

disney_snoopy wrote:
> On Nov 19, 1:41 pm, Tauno Voipio <tauno.voi...@notused.fi.invalid>
> wrote:
>> disney_snoopy wrote:
>>> On Nov 19, 3:35 am, Tauno Voipio <tauno.voi...@notused.fi.invalid>
>>> wrote:
>>>> Richard Dobson wrote:
>>>>> disney_snoopy wrote:
>>>>>> Hi all,
>>>>>> Can anyone explain how to generate the stereo and decode it in channel L
>>>>>> and R in Matlab. Need some explanation or example please!!! Would
>>>>>> appreciate it...
>>>>>> Thankz
>>>>> ?? Generate "the stereo" what? Setting aside semantic niceties, "stereo"
>>>>> audio is just a two-channel audio stream or file (or 2-column matrix,
>>>>> etc), presumed to be sent to two (L/R) front speakers. Nothing to "decode".
>>>>> Richard Dobson
>>>> My guess is that he's attempting to simulate the
>>>> multiplex used on top of a FM radio transmission,
>>>> including the sub-carrier encoding, i.e. what you
>>>> get from the FM demodulator.
>>>> --
>>>> Tauno Voipio
>>>> tauno voipio (at) iki fi- Hide quoted text -
>>>> - Show quoted text -
>>> Hi Richard,
>>> This is something i was think about.
>>> Doing some research before i proposed my project.
>>> I read from the DSP e-book and i learn of how to the FM stereo
>>> component work... Now i was thinking how to apply to a matlab or
>>> mathcad...
>>> Is there a way to generate out from the software? such like generate
>>> out the output graph that look like the component of FM stereo with
>>> the RDS.
>>> Is this project valuable to do?
>>> Plz comment...
>>> Thankz.
>> You did not respond to my question: Homework or study project?
>>
>> --
>>
>> Tauno Voipio- Hide quoted text -
>>
>> - Show quoted text -
>
> Is that very important?


Yes, it is. It is important to direct our responses so
that we do not spoil your opportunity of learning.

It is possible to use a mathematics program to simulate
the processing in a DSP, also in your case. First, you
need to make the important design decisions how to
achieve your goal. This is the same process for a math
program and for a DSP.

--

Tauno Voipio

On Nov 19, 3:07*pm, Tauno Voipio <tauno.voi...@notused.fi.invalid>
wrote:
> disney_snoopy wrote:
> > On Nov 19, 1:41 pm, Tauno Voipio <tauno.voi...@notused.fi.invalid>
> > wrote:
> >> disney_snoopy wrote:
> >>> On Nov 19, 3:35 am, Tauno Voipio <tauno.voi...@notused.fi.invalid>
> >>> wrote:
> >>>> Richard Dobson wrote:
> >>>>> disney_snoopy wrote:
> >>>>>> Hi all,
> >>>>>> Can anyone explain how to generate the stereo and decode it in channel L
> >>>>>> and R in Matlab. Need some explanation or example please!!! Would
> >>>>>> appreciate it...
> >>>>>> Thankz
> >>>>> ?? Generate "the stereo" what? Setting aside semantic niceties, "stereo"
> >>>>> *audio is just a two-channel audio stream or file (or 2-column matrix,
> >>>>> etc), presumed to be sent to two (L/R) front speakers. Nothing to "decode".
> >>>>> Richard Dobson
> >>>> My guess is that he's attempting to simulate the
> >>>> multiplex used on top of a FM radio transmission,
> >>>> including the sub-carrier encoding, i.e. what you
> >>>> get from the FM demodulator.
> >>>> --
> >>>> Tauno Voipio
> >>>> tauno voipio (at) iki fi- Hide quoted text -
> >>>> - Show quoted text -
> >>> Hi Richard,
> >>> This is something i was think about.
> >>> Doing some research before i proposed my project.
> >>> I read from the DSP e-book and i learn of how to the FM stereo
> >>> component work... Now i was thinking how to apply to a matlab or
> >>> mathcad...
> >>> Is there a way to generate out from the software? such like generate
> >>> out the output graph that look like the component of FM stereo with
> >>> the RDS.
> >>> Is this project valuable to do?
> >>> Plz comment...
> >>> Thankz.
> >> You did not respond to my question: Homework or study project?
>
> >> --
>
> >> Tauno Voipio- Hide quoted text -
>
> >> - Show quoted text -
>
> > Is that very important?
>
> Yes, it is. It is important to direct our responses so
> that we do not spoil your opportunity of learning.
>
> It is possible to use a mathematics program to simulate
> the processing in a DSP, also in your case. First, you
> need to make the important design decisions how to
> achieve your goal. This is the same process for a math
> program and for a DSP.
>
> --
>
> Tauno Voipio- Hide quoted text -
>
> - Show quoted text -
Hi Tauno,

I am still waiting for your help in Matlab.

I know how to plot for the pilot frequency.
But i doesnt know how to plot the L+R and L-R region on Matlab.

Please help me on how to plot those region.

Thank You

disney_snoopy wrote:
> On Nov 19, 3:07 pm, Tauno Voipio <tauno.voi...@notused.fi.invalid>
> wrote:
>> disney_snoopy wrote:
>>> On Nov 19, 1:41 pm, Tauno Voipio <tauno.voi...@notused.fi.invalid>
>>> wrote:
>>>> disney_snoopy wrote:
>>>>> On Nov 19, 3:35 am, Tauno Voipio <tauno.voi...@notused.fi.invalid>
>>>>> wrote:
>>>>>> Richard Dobson wrote:
>>>>>>> disney_snoopy wrote:
>>>>>>>> Hi all,
>>>>>>>> Can anyone explain how to generate the stereo and decode it in channel L
>>>>>>>> and R in Matlab. Need some explanation or example please!!! Would
>>>>>>>> appreciate it...
>>>>>>>> Thankz
>>>>>>> ?? Generate "the stereo" what? Setting aside semantic niceties, "stereo"
>>>>>>> audio is just a two-channel audio stream or file (or 2-column matrix,
>>>>>>> etc), presumed to be sent to two (L/R) front speakers. Nothing to "decode".
>>>>>>> Richard Dobson
>>>>>> My guess is that he's attempting to simulate the
>>>>>> multiplex used on top of a FM radio transmission,
>>>>>> including the sub-carrier encoding, i.e. what you
>>>>>> get from the FM demodulator.
>>>>>> --
>>>>>> Tauno Voipio
>>>>>> tauno voipio (at) iki fi- Hide quoted text -
>>>>>> - Show quoted text -
>>>>> Hi Richard,
>>>>> This is something i was think about.
>>>>> Doing some research before i proposed my project.
>>>>> I read from the DSP e-book and i learn of how to the FM stereo
>>>>> component work... Now i was thinking how to apply to a matlab or
>>>>> mathcad...
>>>>> Is there a way to generate out from the software? such like generate
>>>>> out the output graph that look like the component of FM stereo with
>>>>> the RDS.
>>>>> Is this project valuable to do?
>>>>> Plz comment...
>>>>> Thankz.
>>>> You did not respond to my question: Homework or study project?
>>>> --
>>>> Tauno Voipio- Hide quoted text -
>>>> - Show quoted text -
>>> Is that very important?
>> Yes, it is. It is important to direct our responses so
>> that we do not spoil your opportunity of learning.
>>
>> It is possible to use a mathematics program to simulate
>> the processing in a DSP, also in your case. First, you
>> need to make the important design decisions how to
>> achieve your goal. This is the same process for a math
>> program and for a DSP.
>>
>> --
>>
>> Tauno Voipio- Hide quoted text -
>>
>> - Show quoted text -
> Hi Tauno,
>
> I am still waiting for your help in Matlab.
>
> I know how to plot for the pilot frequency.
> But i doesnt know how to plot the L+R and L-R region on Matlab.
>
> Please help me on how to plot those region.
>
> Thank You

You have not responded to my question...

The problem for me it to know what I can suppose
you knowing about the stereo multiplexing and
handling of the required operations in sampled-
data domain.

If this is a study project we definitively will
not provide you with a cook-book answer. Also, as
a consultant, I usually get paid for such work.

--

Tauno Voipio, MSEE