Rephone Audio -> sound very low

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mreddappa.reddy
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Rephone Audio -> sound very low

Post by mreddappa.reddy » Mon Feb 01, 2016 7:18 pm

Dear Admins/ Fellow Users,

I got the rephone kit create which i backed on kickstarter, and connected all the modules successfully today and tested the kit today everything is working fine but the audio is a bit very low? is there an alternative for this? or is anyone experiencing the same?

also can we buy extra craft papers for rephone kit create?

Thanks,
Reddappa.

dbelam
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Re: Rephone Audio -> sound very low

Post by dbelam » Wed Feb 03, 2016 7:56 pm

I'll test mine soon.

If it's really that silent, it's possible to make one with a small amplifier, but it would seriously impact the battery life.

info58
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Re: Rephone Audio -> sound very low

Post by info58 » Sun Feb 07, 2016 2:17 pm

Hi Reddappa,

Personally, i have test my rephone with a simple call and i discover a very low sound for human voice too.
Curiously, when i try the music.mp3 (R2D2 sound) you can find in the rephone kit create directory, the sound is very good enough.

Is this normal that a human voice is a bit difficult to heard but a 8bit sound is clearly heardable ?

Regards
jon

dbelam
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Re: Rephone Audio -> sound very low

Post by dbelam » Sun Feb 07, 2016 4:06 pm

Tested mine, well at max volume it's still bad for calling (and that seroius echo, no wonder all of the guys try to move the microphone).
If the R2D2 sound is played with high volume, the filters probably cut the human frequencies, or it has generally low gain. If anyone could measure the output characteristics, that would be good. Maybe the volume can be turned up by software.

jboulianne
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Re: Rephone Audio -> sound very low

Post by jboulianne » Tue Feb 09, 2016 6:50 am

If your sound is very low, try flipping the audio board around and plug it in the other way. This happened to me lol.

I'm amazed it still works when you hook it up backward.

Spetznatz1
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Re: Rephone Audio -> sound very low

Post by Spetznatz1 » Tue Feb 09, 2016 8:24 pm

My speaker and microphone seem to work pretty good, but do I need to upload some music or sounds for the ringer? When I call my RePhone and it receives the call it doesn't make a sound.
How exactly do I upload music or sounds?

dbelam
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Re: Rephone Audio -> sound very low

Post by dbelam » Tue Feb 09, 2016 11:10 pm

>How exactly do I upload music or sounds?
Like the initial folder. Turn off, plug to PC, upload Mp3 (to the root folder is OK).
For setting the ringtones, select the call/SMS event in the "if" menu.

jan.pacak
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Re: Rephone Audio -> sound very low

Post by jan.pacak » Wed Feb 17, 2016 5:55 am

I have also problem with audio loudness... I expected to connect speaker (active) to speakers, but still it is too silent... :-(

jan.pacak
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Re: Rephone Audio -> sound very low

Post by jan.pacak » Wed Feb 17, 2016 7:21 am

Hello,

is tehre any description, how audio output on MT2502 works? Meaning physically - voltages, grounded speaker output if used headphones, etc?

Is there a way how to change audio volume in SDK?

Thank you

info63
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Re: Rephone Audio -> sound very low

Post by info63 » Mon Nov 07, 2016 11:56 pm

awsome support here!
many people with a problem that makes the device useless, and nobody cares.... :roll:
is there any solution for the silent speaker out there?

i am faced the same issue. in my opinion, the call is on "normal" mode like on a phone, and it would be necessary to switch to "speaker mode".
in the Assist SDK 2.0, there are such options, but i was not able to figure it out for the Rephone Arduino SDK.
would be great, if anyone has an idea!?

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