Author Topic: Programming Sound Chips Please Help  (Read 5437 times)

berk

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Re: Programming Sound Chips Please Help
« Reply #15 on: March 20, 2016, 04:19:11 AM »
Doh!

Madkat

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Re: Programming Sound Chips Please Help
« Reply #16 on: March 20, 2016, 06:00:50 AM »
OK,

So i have taken a couple more Vids so people can get a better understanding of what i am going through,

The first Vid when you watch it, you can see that this is a working Rev H board complete with working sounds and everything, I turn it on so the Ready to Engage sound can be heard,

The second Vid is of me using the sound editor with the same Rev H board, first i play the sound effect from the laptop, then i try to play the same sound from the ISD which is a working ISD as per the power up.

AS you can see the first sound is heard nice a clear, then when i try to play it from the ISD the Sensor lights come on and the white noise is continuations from the speaker, but there is no sound effect, However this sound chip is a working one,

So it's not a dodgy ISD,

IT must be something to do with the serial connector.


Madkat

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Re: Programming Sound Chips Please Help
« Reply #17 on: March 20, 2016, 07:22:20 AM »
OK,

After making a completely new Serial Cable, and i had run out of 20K resistors i used a 18K resistor and now it all works,

So im guessing that my original cable didn't have a 20K resistor on it as to be honest i didn't make it.

But now i find that the sounds coming out of a newly programmed ISD seems a little muffled and sound over driven even thought it is softer than the original milestag ISD.

I hope this makes sense,

Any idea what this could be??

Thanks

Coolasice

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Re: Programming Sound Chips Please Help
« Reply #18 on: March 20, 2016, 08:53:58 AM »
Did you make your audio input lead?  If so what resistor values did you use?  Also what volume was the pc at when you did the recordings?

Madkat

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Re: Programming Sound Chips Please Help
« Reply #19 on: March 20, 2016, 09:23:11 AM »
Yes,  I made the audio Lead,

It has 1K 1% resistors,

Im not 100% sure what the audio lvl was, but i could hear it through the Rev H board and it didn't sound that bad, but when i unplugged everything and loaded the board up it sounded bad
 

Madkat

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Re: Programming Sound Chips Please Help
« Reply #20 on: March 20, 2016, 09:41:42 AM »
So i just tried it again,

I have the volume set to 80 and the Mic set to 70.

I have to mov files,

The first it the standard one played from the sound editor and it the laptop version played through the board speaker,

The second is the muffled one after i play it from the ISD.  You can hear the massive difference

Coolasice

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Re: Programming Sound Chips Please Help
« Reply #21 on: March 20, 2016, 09:57:55 AM »
I also saw a big difference,  just set volume to max on the pc,  also check volume on your core board,  set it to max and see

Madkat

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Re: Programming Sound Chips Please Help
« Reply #22 on: March 20, 2016, 10:05:19 AM »
OK i will give that a go,

But wouldn't it sound even more distorted if i turn the volume up on the core board??


Coolasice

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Re: Programming Sound Chips Please Help
« Reply #23 on: March 20, 2016, 12:46:33 PM »
I recorded mine at full volume and it sounds fine