Reply by supe...@hotmail.com●January 3, 20132013-01-03
I am having a wave file. I have to implement this operation on it. Since picture
cannot be attached i am writing the steps >
>input speech signal-----> [ Low pass filter of 4 KHz----> Decimate the Signal
by M] -----> [ interpolate the signal by L -----> Low pass filter of 4
KHz]----> output
>I have read the wave file in matlab. Now i want to implement the above steps in
matlab , i am stuck with it. Can any body help me in this regard.
>
>Secondly i also want to adjust LPF in such a way that no aliasing occur at
decimation stage and no images come at interpolation stage
>
>Plz help me in this regard.thanks a lot
>
>Hi,
Julius O. Smith, has written volumes on audio DSP, including oversampling, from
an academic perspective. Oversampling is critical in producing accurate sounding
digital models. Here's his resampling homepage at Stanford U.:
We need more information to help you. What is the original sampling
frequency? What output sampling rate are you interested in achieving? Your
answer might be as simple as:
On Wed, Mar 16, 2011 at 2:24 AM, pranav jawale wrote:
> Please tell us what code you have written till now in
Matlab. Then we
> can tell further.
>
> - Pranav
> On 3/13/11, moonnightingale wrote:
> > I am having a wave file. I have to implement this operation on it. Since
> > picture cannot be attached i am writing the steps
> >
> > input speech signal-----> [ Low pass filter of 4 KHz----> Decimate the
> > Signal by M] ----->[ interpolate the signal by L -----> Low pass filter
> > of 4 KHz]----> output
> >
> >
> > I have read the wave file in matlab. Now i want to implement the above
> steps
> > in matlab , i am stuck with it. Can any body help me in this regard.
> >
> > Secondly i also want to adjust LPF in such a way that no aliasing occur
> at
> > decimation stage and no images come at interpolation stage
> >
> > Plz help me in this regard.thanks a lot
> >
> > --
> *
> *
>
> However beautiful the strategy, you should occasionally look at the
> results.
>
> -- Winston Churchill
>
>
>
On Fri, Mar 18, 2011 at 12:26 PM, Brant Jameson wrote:
> We need more information to help you. What is the
original sampling
> frequency? What output sampling rate are you interested in achieving?
Your
> answer might be as simple as:
>
> outSig = resample(inSig, inSampleFrequency, outSampleFrequency);
>
> -Brant
> On Wed, Mar 16, 2011 at 2:24 AM, pranav jawale wrote:
>
>> Please tell us what code you have written till now in Matlab. Then we
>> can tell further.
>>
>> - Pranav
>> On 3/13/11, moonnightingale wrote:
>> > I am having a wave file. I have to implement this operation on it. Since
>> > picture cannot be attached i am writing the steps
>> >
>> > input speech signal-----> [ Low pass filter of 4 KHz----> Decimate the
>> > Signal by M] ----->[ interpolate the signal by L -----> Low pass filter
>> > of 4 KHz]----> output
>> >
>> >
>> > I have read the wave file in matlab. Now i want to implement the above
>> steps
>> > in matlab , i am stuck with it. Can any body help me in this regard.
>> >
>> > Secondly i also want to adjust LPF in such a way that no aliasing occur
>> at
>> > decimation stage and no images come at interpolation stage
>> >
>> > Plz help me in this regard.thanks a lot
>> >
>> >
>>
>> --
>> *
>> *
>>
>> However beautiful the strategy, you should occasionally look at the
>> results.
>>
>> -- Winston Churchill
>>
>>
>> --
> Brant Jameson
> PhD Candidate
> UC Santa Cruz Computer Engineering
> http://people.ucsc.edu/~pheese --
Brant Jameson
PhD Candidate
UC Santa Cruz Computer Engineering http://people.ucsc.edu/~pheese
Reply by pranav jawale●March 18, 20112011-03-18
Please tell us what code you have written till now in Matlab. Then we
can tell further.
- Pranav
On 3/13/11, moonnightingale wrote: > I am having a wave file. I have to implement this
operation on it. Since
> picture cannot be attached i am writing the steps
>
> input speech signal-----> [ Low pass filter of 4 KHz----> Decimate the
> Signal by M] ----->[ interpolate the signal by L -----> Low pass filter
> of 4 KHz]----> output
> I have read the wave file in matlab. Now i want to implement the above
steps
> in matlab , i am stuck with it. Can any body help me in this regard.
>
> Secondly i also want to adjust LPF in such a way that no aliasing occur at
> decimation stage and no images come at interpolation stage
>
> Plz help me in this regard.thanks a lot --
*
*
However beautiful the strategy, you should occasionally look at the results.
-- Winston Churchill
Reply by moon...@yahoo.com●March 18, 20112011-03-18
I am having a wave file. I have to implement this operation on it. Since picture
cannot be attached i am writing the steps >
>input speech signal-----> [ Low pass filter of 4 KHz----> Decimate the Signal
by M] -----> [ interpolate the signal by L -----> Low pass filter of 4
KHz]----> output
>I have read the wave file in matlab. Now i want to implement the above steps in
matlab , i am stuck with it. Can any body help me in this regard.
>
>Secondly i also want to adjust LPF in such a way that no aliasing occur at
decimation stage and no images come at interpolation stage
>
>Plz help me in this regard.thanks a lot Actually i was unable to upload question here.
Now i have uploaded complete question with picture here. http://i285.photobucket.com/albums/ll60/moonnightingale/bookquestion4.jpg
I have solved part 1. But i am stuck with part 2.
If any body help me to solve part 2 in matlab, i will then able to solve others.
So kindly spare some time and write code in matlab for second part
Thanks
Reply by moonnightingale●March 15, 20112011-03-15
I am having a wave file. I have to implement this operation on it. Since picture
cannot be attached i am writing the steps
input speech signal-----> [ Low pass filter of 4 KHz----> Decimate the Signal by
M] ----->[ interpolate the signal by L -----> Low pass filter of 4 KHz]---->
output
I have read the wave file in matlab. Now i want to implement the above steps in
matlab , i am stuck with it. Can any body help me in this regard.
Secondly i also want to adjust LPF in such a way that no aliasing occur at
decimation stage and no images come at interpolation stage