where to get MELPe with 600 bps

Started by Anonymous in comp.dsp3 weeks ago 6 replies

Hello, I sent a request to get MELPe through s5066.nc3a.nato.int two months ago, but I did not receive a reply. Is there another way to...

Hello, I sent a request to get MELPe through s5066.nc3a.nato.int two months ago, but I did not receive a reply. Is there another way to the MELPe with 600 bps. Could someone in the USA share the updated MELPe code with me? Please sent the code to kathyz@torreypinestechnologies.com or mail the code to Kathy Zhang Torraypines Technologies Inc. 12396 World Trade Drive Suite 117 San...


MELPe or MELP vocoder for secure portable device

Started by R. Chen in comp.dsp3 weeks ago 16 replies

For secure portable device that is based on 533MHz Power PC processor or Pentium, we would like to use low rate vocoder. We realized that MELP...

For secure portable device that is based on 533MHz Power PC processor or Pentium, we would like to use low rate vocoder. We realized that MELP or MELPe vocoder may be best for rates between 600 and 2400 bps. Do we need DSP or can we use simpler and cheaper solution such as the Power PC/Pentium processor itself? If we need to use DSP implementation, which DSP/implementation be the best? ...


MELP vocoder and MELPe codec

Started by GoodMan in comp.dsp3 weeks ago

There's lots of helpful information and data about the MELP vocoder and MELPe codec at: Http://www.melpe.com Incluing implementations, software,...

There's lots of helpful information and data about the MELP vocoder and MELPe codec at: Http://www.melpe.com Incluing implementations, software, hardware and solutions.


Timing Synchronization in FHSS Systems

Started by Randy Yates in comp.dsp1 month ago 5 replies

In a FHSS system like Bluetooth, how is synchronization to the hopping sequence done? For example, for a specific hop sequence, is a special...

In a FHSS system like Bluetooth, how is synchronization to the hopping sequence done? For example, for a specific hop sequence, is a special code sent at the beginning of a frame on the initial hop channel by the FHSS "master" and all slaves listen in and synchronise? Is short-term stabilty assumed good enough that synchronization can be mantained through all channels in the hopping seque...


What does 'M' mean in RS(544, 514, T=15, M=10)?

Started by fl in comp.dsp1 month ago 2 replies

Hi, I know RS code has a 't' parameter, but I don't know the last one in RS(544, 514, T=15, M=10). Can you tell me that? Thanks,

Hi, I know RS code has a 't' parameter, but I don't know the last one in RS(544, 514, T=15, M=10). Can you tell me that? Thanks,


CFP EVOMUSART 2019: DEADLINE EXTENDED, November 12, 2018

Started by Luz Castro in comp.dsp1 month ago

Dear colleagues, **** DEADLINE EXTENDED **** The deadline for submitting your paper on the 8th International Conference on Computational...

Dear colleagues, **** DEADLINE EXTENDED **** The deadline for submitting your paper on the 8th International Conference on Computational Intelligence in Music, Sound, Art and Design (evoMUSART) is now **November 12, 2018**. More information on the submission process and the topics of evoMUSART 2019 can be found at http://www.evostar.org/2019/cfp_evomusart.php Impor


Separate two sinusoids with very close frequencies (5 Hz difference) in an audio signal, with good time-domain resolution

Started by Random6wx3e3qvwp in comp.dsp2 months ago 3 replies

I have an audio signal which is a mix of: * a 2000 Hz sinusoid, beginning at 1.00 sec, without fade-in/fade-out * a 2005 Hz sinusoid,...

I have an audio signal which is a mix of: * a 2000 Hz sinusoid, beginning at 1.00 sec, without fade-in/fade-out * a 2005 Hz sinusoid, beginning at 1.031 sec, with a slow fade-out at the end * background noise (link to the WAV file: https://file.io/jo0h9V) (In reality it's even more complex: the sinusoids can also vary in amplitude...) Question: How to separate the signal into t...


Question for practicising engineers

Started by Anonymous in comp.dsp2 months ago 4 replies

who design electronic products. I expect you are well aware of the price you can buy ready-made modules to do all manner of things from China or...

who design electronic products. I expect you are well aware of the price you can buy ready-made modules to do all manner of things from China or other far east countries. How is it possible to survive nowadays with such competition. I realise not all of the stuff is quality of course but some are more than satisfactory. I recently saw a composite video to HDMI convertor and know a f


Reminder: CFP 8th EVOMUSART conference

Started by Luz Castro in comp.dsp2 months ago

------------------------------------------------ Call for papers for the 8th EVOMUSART conference Please distribute (Apologies for cross...

------------------------------------------------ Call for papers for the 8th EVOMUSART conference Please distribute (Apologies for cross posting) ------------------------------------------------ The 8th International Conference on Computational Intelligence in Music, Sound, Art and Design (evoMUSART) will be held in Leipzig, Germany in 24-26 April 2019, as part of the evo* event. Th


DCT in video compression

Started by RichD in comp.dsp2 months ago 16 replies

The mp3 standard uses the discrete cosine transform (DCT), rather than the full DFT. Doesn't that imply throwing away half the...

The mp3 standard uses the discrete cosine transform (DCT), rather than the full DFT. Doesn't that imply throwing away half the information? Can anyone explain this? -- Rich


Ask a Question to the DSPRelated community

To significantly increase your chances of receiving answers, please make sure to:

  1. Use a meaningful title
  2. Express your question clearly and well
  3. Do not use this forum to promote your product, service or business
  4. Write in clear, grammatical, correctly-spelled language
  5. Do not post content that violates a copyright