disney_snoopy wrote:> On Nov 20, 10:20 am, Jerry Avins <j...@ieee.org> wrote: >> disney_snoopy wrote: >>> On Nov 20, 1:40 am, Mark <makol...@yahoo.com> wrote: >>>> On Nov 18, 10:34 pm, Jerry Avins <j...@ieee.org> wrote: >>>>> disney_snoopy wrote: >>>>>> On Nov 19, 9:23 am, Jerry Avins <j...@ieee.org> wrote: >>>>>>> disney_snoopy wrote: >>>>>>>> Hi all, >>>>>>>> I would appreciate if anyone here could help me. >>>>>>>> I was thinking to create a FM stereo with the RDS and L+R and L-R >>>>>>>> channel in Matlab. >>>>>>>> But i doesnt know how to do on that... >>>>>>>> Can anyone here help me plz? >>>>>>> That's a much more informative statement of what you want than your last >>>>>>> posting. What you should be asking for is a reference to the applicable >>>>>>> standard (Ignore HD to start.) I'd have to search for it, so I'll leave >>>>>>> that chore to you or anyone who knows. It makes sense to know the >>>>>>> details of what you are about to do before concerning yourself with the >>>>>>> details of how to do it. >>>>>>> A matter of curiosity: What will you do with it once you get it working? >>>>>>> You can't tune a receiver to Matlab. >>>>>>> Jerry >>>>>>> -- >>>>>>> Engineering is the art of making what you want from things you can get. >>>>>>> ����������������������������������������������������������������������� >>>>>> Hi Jerry, >>>>>> U call me to ignore HD? what is HD? >>>>> http://en.wikipedia.org/wiki/HD_Radio >>>>>> I was trying to apply to Matlab is becoz i want to prove in >>>>>> theoretical is able to produce this kind of component before i proceed >>>>>> my further research for my practical... >>>>>> thankz >>>>> Jerry >>>>> -- >>>>> Engineering is the art of making what you want from things you can get. >>>>> �����������������������������������������������������������������������- Hide quoted text - >>>>> - Show quoted text - >>>> the best discussion i have seen on FM stereo multiplex is here: >>>> http://transmitters.tripod.com/stereo.htm >>>> Mark- Hide quoted text - >>>> - Show quoted text - >>> Hi Mark, >>> I have read this website before. >>> What my question is "How to Create FM stereo from Matlab". >>> I just need help to generate the Matlab. IS it generate from fdatool >>> of Multiband? or can you all gv me some tutorial of the Matlab or any >>> hint from that... >>> Would appreciate for your help! >> Matlab is a programming langusge. Are you saying that you want code, or >> hints on how to write it? >> >> Jerry >> -- >> Engineering is the art of making what you want from things you can get. >> �����������������������������������������������������������������������- Hide quoted text - >> >> - Show quoted text - > > ya... i try to use multiband from the fdatool. can I use that to > create my FM stereo from that? I mean is that make sense if i generate > it from multiband and said this is the concept of how to generate the > FM stereo from theoretical... or any filter to use to generate the FM > stereo will all component?You can't code something that you don't understand.Do you know about the half-frequency subcarrier pilot? Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
Create FM stereo from Matlab.
Started by ●November 18, 2009
Reply by ●November 19, 20092009-11-19
Reply by ●November 19, 20092009-11-19
disney_snoopy <disney_snoopy@hotmail.com> wrote:> I would appreciate if anyone here could help me. > I was thinking to create a FM stereo with the RDS and L+R and L-R > channel in Matlab. > But i doesnt know how to do on that... > Can anyone here help me plz?What sample rate are you planning to use? If it is a multiple of 38kHz it would be somewhat easier than other frequencies. -- glen
Reply by ●November 20, 20092009-11-20
On Nov 20, 11:20�am, Jerry Avins <j...@ieee.org> wrote:> disney_snoopy wrote: > > On Nov 20, 10:20 am, Jerry Avins <j...@ieee.org> wrote: > >> disney_snoopy wrote: > >>> On Nov 20, 1:40 am, Mark <makol...@yahoo.com> wrote: > >>>> On Nov 18, 10:34 pm, Jerry Avins <j...@ieee.org> wrote: > >>>>> disney_snoopy wrote: > >>>>>> On Nov 19, 9:23 am, Jerry Avins <j...@ieee.org> wrote: > >>>>>>> disney_snoopy wrote: > >>>>>>>> Hi all, > >>>>>>>> I would appreciate if anyone here could help me. > >>>>>>>> I was thinking to create a FM stereo with the RDS and L+R and L-R > >>>>>>>> channel in Matlab. > >>>>>>>> But i doesnt know how to do on that... > >>>>>>>> Can anyone here help me plz? > >>>>>>> That's a much more informative statement of what you want than your last > >>>>>>> posting. What you should be asking for is a reference to the applicable > >>>>>>> standard (Ignore HD to start.) I'd have to search for it, so I'll leave > >>>>>>> that chore to you or anyone who knows. It makes sense to know the > >>>>>>> details of what you are about to do before concerning yourself with the > >>>>>>> details of how to do it. > >>>>>>> A matter of curiosity: What will you do with it once you get it working? > >>>>>>> You can't tune a receiver to Matlab. > >>>>>>> Jerry > >>>>>>> -- > >>>>>>> Engineering is the art of making what you want from things you can get. > >>>>>>> ����������������������������������������������������������������������� > >>>>>> Hi Jerry, > >>>>>> U call me to ignore HD? what is HD? > >>>>>http://en.wikipedia.org/wiki/HD_Radio > >>>>>> I was trying to apply to Matlab is becoz i want to prove in > >>>>>> theoretical is able to produce this kind of component before i proceed > >>>>>> my further research for my practical... > >>>>>> thankz > >>>>> Jerry > >>>>> -- > >>>>> Engineering is the art of making what you want from things you can get. > >>>>> �����������������������������������������������������������������������- Hide quoted text - > >>>>> - Show quoted text - > >>>> the best discussion i have seen on FM stereo multiplex is here: > >>>>http://transmitters.tripod.com/stereo.htm > >>>> Mark- Hide quoted text - > >>>> - Show quoted text - > >>> Hi Mark, > >>> I have read this website before. > >>> What my question is "How to Create FM stereo from Matlab". > >>> I just need help to generate the Matlab. IS it generate from fdatool > >>> of Multiband? or can you all gv me some tutorial of the Matlab or any > >>> hint from that... > >>> Would appreciate for your help! > >> Matlab is a programming langusge. Are you saying that you want code, or > >> hints on how to write it? > > >> Jerry > >> -- > >> Engineering is the art of making what you want from things you can get. > >> �����������������������������������������������������������������������- Hide quoted text - > > >> - Show quoted text - > > > ya... i try to use multiband from the fdatool. can I use that to > > create my FM stereo from that? I mean is that make sense if i generate > > it from multiband and said this is the concept of how to generate the > > FM stereo from theoretical... or any filter to use to generate the FM > > stereo will all component? > > You can't code something that you don't understand.Do you know about the > half-frequency subcarrier pilot? > > Jerry > -- > Engineering is the art of making what you want from things you can get. > �����������������������������������������������������������������������- Hide quoted text - > > - Show quoted text -Did i said that i dun understand? I already coded in my title "Create FM stereo from Matlab". I doesnt said that i need help for the concept of the FM stereo.
Reply by ●November 20, 20092009-11-20
On Nov 20, 11:26�am, glen herrmannsfeldt <g...@ugcs.caltech.edu> wrote:> disney_snoopy <disney_sno...@hotmail.com> wrote: > > I would appreciate if anyone here could help me. > > I was thinking to create a FM stereo with the RDS and L+R and L-R > > channel in Matlab. > > But i doesnt know how to do on that... > > Can anyone here help me plz? > > What sample rate are you planning to use? �If it is a multiple > of 38kHz it would be somewhat easier than other frequencies. > > -- glenHi Glen, For example my audio is 1kHz, my sample rate is 200kHz. And i plan to create out my FM stereo till the 57kHz signal of my RDS. Any help on that in my Matlab on how to write the code or by apply fdatool? Thankz
Reply by ●November 20, 20092009-11-20
disney_snoopy wrote:> On Nov 20, 11:20 am, Jerry Avins <j...@ieee.org> wrote: >> disney_snoopy wrote: >>> On Nov 20, 10:20 am, Jerry Avins <j...@ieee.org> wrote: >>>> disney_snoopy wrote: >>>>> On Nov 20, 1:40 am, Mark <makol...@yahoo.com> wrote: >>>>>> On Nov 18, 10:34 pm, Jerry Avins <j...@ieee.org> wrote: >>>>>>> disney_snoopy wrote: >>>>>>>> On Nov 19, 9:23 am, Jerry Avins <j...@ieee.org> wrote: >>>>>>>>> disney_snoopy wrote: >>>>>>>>>> Hi all, >>>>>>>>>> I would appreciate if anyone here could help me. >>>>>>>>>> I was thinking to create a FM stereo with the RDS and L+R and L-R >>>>>>>>>> channel in Matlab. >>>>>>>>>> But i doesnt know how to do on that... >>>>>>>>>> Can anyone here help me plz? >>>>>>>>> That's a much more informative statement of what you want than your last >>>>>>>>> posting. What you should be asking for is a reference to the applicable >>>>>>>>> standard (Ignore HD to start.) I'd have to search for it, so I'll leave >>>>>>>>> that chore to you or anyone who knows. It makes sense to know the >>>>>>>>> details of what you are about to do before concerning yourself with the >>>>>>>>> details of how to do it. >>>>>>>>> A matter of curiosity: What will you do with it once you get it working? >>>>>>>>> You can't tune a receiver to Matlab. >>>>>>>>> Jerry >>>>>>>>> -- >>>>>>>>> Engineering is the art of making what you want from things you can get. >>>>>>>>> ����������������������������������������������������������������������� >>>>>>>> Hi Jerry, >>>>>>>> U call me to ignore HD? what is HD? >>>>>>> http://en.wikipedia.org/wiki/HD_Radio >>>>>>>> I was trying to apply to Matlab is becoz i want to prove in >>>>>>>> theoretical is able to produce this kind of component before i proceed >>>>>>>> my further research for my practical... >>>>>>>> thankz >>>>>>> Jerry >>>>>>> -- >>>>>>> Engineering is the art of making what you want from things you can get. >>>>>>> �����������������������������������������������������������������������- Hide quoted text - >>>>>>> - Show quoted text - >>>>>> the best discussion i have seen on FM stereo multiplex is here: >>>>>> http://transmitters.tripod.com/stereo.htm >>>>>> Mark- Hide quoted text - >>>>>> - Show quoted text - >>>>> Hi Mark, >>>>> I have read this website before. >>>>> What my question is "How to Create FM stereo from Matlab". >>>>> I just need help to generate the Matlab. IS it generate from fdatool >>>>> of Multiband? or can you all gv me some tutorial of the Matlab or any >>>>> hint from that... >>>>> Would appreciate for your help! >>>> Matlab is a programming langusge. Are you saying that you want code, or >>>> hints on how to write it? >>>> Jerry >>>> -- >>>> Engineering is the art of making what you want from things you can get. >>>> �����������������������������������������������������������������������- Hide quoted text - >>>> - Show quoted text - >>> ya... i try to use multiband from the fdatool. can I use that to >>> create my FM stereo from that? I mean is that make sense if i generate >>> it from multiband and said this is the concept of how to generate the >>> FM stereo from theoretical... or any filter to use to generate the FM >>> stereo will all component? >> You can't code something that you don't understand.Do you know about the >> half-frequency subcarrier pilot? >> >> Jerry >> -- >> Engineering is the art of making what you want from things you can get. >> �����������������������������������������������������������������������- Hide quoted text - >> >> - Show quoted text - > > Did i said that i dun understand? I already coded in my title "Create > FM stereo from Matlab". > I doesnt said that i need help for the concept of the FM stereo.So what stops you from coding it? Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
Reply by ●November 20, 20092009-11-20
disney_snoopy <disney_snoopy@hotmail.com> writes:> On Nov 20, 11:26 am, glen herrmannsfeldt <g...@ugcs.caltech.edu> > wrote: >> disney_snoopy <disney_sno...@hotmail.com> wrote: >> > I would appreciate if anyone here could help me. >> > I was thinking to create a FM stereo with the RDS and L+R and L-R >> > channel in Matlab. >> > But i doesnt know how to do on that... >> > Can anyone here help me plz? >> >> What sample rate are you planning to use? If it is a multiple >> of 38kHz it would be somewhat easier than other frequencies. >> >> -- glen > > Hi Glen, > > For example my audio is 1kHz, my sample rate is 200kHz. And i plan to > create out my FM stereo till the 57kHz signal of my RDS. > Any help on that in my Matlab on how to write the code or by apply > fdatool?Your continued allusion to fdatool leads me to believe you don't have a clue. It's like asking, "How do I apply a 9/16" wrench to rebuild my engine?"! -- Randy Yates % "I met someone who looks alot like you, Digital Signal Labs % she does the things you do, mailto://yates@ieee.org % but she is an IBM." http://www.digitalsignallabs.com % 'Yours Truly, 2095', *Time*, ELO
Reply by ●November 22, 20092009-11-22
glen herrmannsfeldt <gah@ugcs.caltech.edu> writes:> Jerry Avins <jya@ieee.org> wrote: >>> I would appreciate if anyone here could help me. >>> I was thinking to create a FM stereo with the RDS and L+R and L-R >>> channel in Matlab. >>> But i doesnt know how to do on that... >>> Can anyone here help me plz? > (snip) > >> A matter of curiosity: What will you do with it once you get it working? >> You can't tune a receiver to Matlab. > > I think I remember seeing in books external stereo decoders, > but I don't remember ever actually seeing one. Just like we now > have decoders for digital television, when stereo broadcasting > was new there would have been decoders to connect to mono tuners.I've never seen one either, but at one time my dad had an old FM radio that was mono but had a set of outputs at the back where one could supposedly hook up a stereo decoder. He didn't have the decoder though. The radio was tube-based, and dated from the 1950s, IIRC.
Reply by ●November 22, 20092009-11-22
Richard Todd wrote:> glen herrmannsfeldt <gah@ugcs.caltech.edu> writes: > >> Jerry Avins <jya@ieee.org> wrote: >>>> I would appreciate if anyone here could help me. >>>> I was thinking to create a FM stereo with the RDS and L+R and L-R >>>> channel in Matlab. >>>> But i doesnt know how to do on that... >>>> Can anyone here help me plz? >> (snip) >> >>> A matter of curiosity: What will you do with it once you get it working? >>> You can't tune a receiver to Matlab. >> I think I remember seeing in books external stereo decoders, >> but I don't remember ever actually seeing one. Just like we now >> have decoders for digital television, when stereo broadcasting >> was new there would have been decoders to connect to mono tuners.When stereo was new, large-scale integration was not yet a commercial reality. Some tuners came with an output jack that allowed the connection of a demultiplexer chassis (a tap before the preemphasis filter) but I never actually saw one. People just bought stereo-capable receivers.> I've never seen one either, but at one time my dad had an old FM radio > that was mono but had a set of outputs at the back where one could > supposedly hook up a stereo decoder. He didn't have the decoder though. > The radio was tube-based, and dated from the 1950s, IIRC.Fisher? Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
Reply by ●November 22, 20092009-11-22
On Nov 21, 12:17=A0am, Randy Yates <ya...@ieee.org> wrote:> disney_snoopy <disney_sno...@hotmail.com> writes: > > On Nov 20, 11:26=A0am, glen herrmannsfeldt <g...@ugcs.caltech.edu> > > wrote: > >> disney_snoopy <disney_sno...@hotmail.com> wrote: > >> > I would appreciate if anyone here could help me. > >> > I was thinking to create a FM stereo with the RDS and L+R and L-R > >> > channel in Matlab. > >> > But i doesnt know how to do on that... > >> > Can anyone here help me plz? > > >> What sample rate are you planning to use? =A0If it is a multiple > >> of 38kHz it would be somewhat easier than other frequencies. > > >> -- glen > > > Hi Glen, > > > For example my audio is 1kHz, my sample rate is 200kHz. And i plan to > > create out my FM stereo till the 57kHz signal of my RDS. > > Any help on that in my Matlab on how to write the code or by apply > > fdatool? > > Your continued allusion to fdatool leads me to believe you don't > have a clue. It's like asking, "How do I apply a 9/16" wrench to > rebuild my engine?"! > -- > Randy Yates =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0% "I met someone w=ho looks alot like you,> Digital Signal Labs =A0 =A0 =A0 =A0 =A0 =A0 =A0% =A0 =A0 =A0 =A0 =A0 =A0 =she does the things you do,> mailto://ya...@ieee.org =A0 =A0 =A0 =A0 =A0% =A0 =A0 =A0 =A0 =A0 =A0 =A0 ==A0 =A0 =A0 but she is an IBM."http://www.digitalsignallabs.com% =A0 =A0 = =A0 =A0'Yours Truly, 2095', *Time*, ELO =A0- Hide quoted text -> > - Show quoted text -yup Randy u r right! If i were know how to do for the Matlab, then wont be here asking a question for the Matlab clue... Any help on that or tutorial of that? I found that here are not able to attach picture if not i will attach the pic that what is the outlook that i want. Thankz
Reply by ●November 29, 20092009-11-29
On Nov 21, 12:17�am, Randy Yates <ya...@ieee.org> wrote:> disney_snoopy <disney_sno...@hotmail.com> writes: > > On Nov 20, 11:26�am, glen herrmannsfeldt <g...@ugcs.caltech.edu> > > wrote: > >> disney_snoopy <disney_sno...@hotmail.com> wrote: > >> > I would appreciate if anyone here could help me. > >> > I was thinking to create a FM stereo with the RDS and L+R and L-R > >> > channel in Matlab. > >> > But i doesnt know how to do on that... > >> > Can anyone here help me plz? > > >> What sample rate are you planning to use? �If it is a multiple > >> of 38kHz it would be somewhat easier than other frequencies. > > >> -- glen > > > Hi Glen, > > > For example my audio is 1kHz, my sample rate is 200kHz. And i plan to > > create out my FM stereo till the 57kHz signal of my RDS. > > Any help on that in my Matlab on how to write the code or by apply > > fdatool? > > Your continued allusion to fdatool leads me to believe you don't > have a clue. It's like asking, "How do I apply a 9/16" wrench to > rebuild my engine?"! > -- > Randy Yates � � � � � � � � � � �% "I met someone who looks alot like you, > Digital Signal Labs � � � � � � �% � � � � � � she does the things you do, > mailto://ya...@ieee.org � � � � �% � � � � � � � � � � but she is an IBM."http://www.digitalsignallabs.com% � � � �'Yours Truly, 2095', *Time*, ELO �- Hide quoted text - > > - Show quoted text -Please could anyone here help me on the 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
