sudomod

Hello, I'm having trouble with getting USB audio to work. I don't know what I'm doing wrong so if anyone could help me that would be great.
I'm a newbie at electronics...

Thanks.

~print

print (sudo) wrote:Hello, I'm having trouble with getting USB audio to work. I don't know what I'm doing wrong so if anyone could help me that would be great.
I'm a newbie at electronics...

Thanks.

~print

Hello, I'm having trouble flying my rocket ship to mars. I don't know what I'm doing wrong so if anyone could help me that would be great. I'm a newbie at space travel...

Now you understand why details of the problem are important so please give us some.

fcib wrote:

print (sudo) wrote:Hello, I'm having trouble with getting USB audio to work. I don't know what I'm doing wrong so if anyone could help me that would be great.
I'm a newbie at electronics...

Thanks.

~print

Hello, I'm having trouble flying my rocket ship to mars. I don't know what I'm doing wrong so if anyone could help me that would be great. I'm a newbie at space travel...

Now you understand why details of the problem are important so please give us some.

Yeah sorry, there is no audio

print (sudo) wrote:

fcib wrote:

print (sudo) wrote:Hello, I'm having trouble with getting USB audio to work. I don't know what I'm doing wrong so if anyone could help me that would be great.
I'm a newbie at electronics...

Thanks.

~print

Hello, I'm having trouble flying my rocket ship to mars. I don't know what I'm doing wrong so if anyone could help me that would be great. I'm a newbie at space travel...

Now you understand why details of the problem are important so please give us some.

Yeah sorry, there is no audio

Well, I would check first:
-does the USB sound card show up in a PC or on the pi when plugged in?
-Try connecting the L+R to one side of the speaker and ground to the other side, without the amp, potentiometer, headphonejack to test if it works before adding the other wiring
-Is your potentiometer wired correctly (may not be same type/model as diagram)

Then we can continue troubleshooting. Good luck

fcib wrote:

print (sudo) wrote:

fcib wrote:
Hello, I'm having trouble flying my rocket ship to mars. I don't know what I'm doing wrong so if anyone could help me that would be great. I'm a newbie at space travel...

Now you understand why details of the problem are important so please give us some.

Yeah sorry, there is no audio

Well, I would check first:
-does the USB sound card show up in a PC or on the pi when plugged in?
-Try connecting the L+R to one side of the speaker and ground to the other side, without the amp, potentiometer, headphonejack to test if it works before adding the other wiring
-Is your potentiometer wired correctly (may not be same type/model as diagram)

Then we can continue troubleshooting. Good luck

Thanks, the sound card is being picked up by the PC, the speaker works with the L±R wired up
I don't know how to wire up the potentiometer though...
It's a B103.

Thanks again

Looking at your wiring, you wired + and - of the left channel into both inputs of the pot.

You only need to wire the + into the pot (and of course the ground as well). (Your audio will be mono). Or add the + of the right channel to the pot as well.

From your picture I would say, from left to right:

1. ground
2. first output
3. second output
4. second input
5. first input

Not sure about the output / input ordering......I'll check my wiring when I'm at home

TimBer wrote:Looking at your wiring, you wired + and - of the left channel into both inputs of the pot.

You only need to wire the + into the pot (and of course the ground as well). (Your audio will be mono). Or add the + of the right channel to the pot as well.

From your picture I would say, from left to right:

1. ground
2. first output
3. second output
4. second input
5. first input

Not sure about the output / input ordering......I'll check my wiring when I'm at home

I'm confused... Diagram?

Something like this. I do not know your audio jack wiring.
But again....I will check my exact wiring this evening (4 to 5 hours from now for me

TimBer wrote:Something like this. I do not know your audio jack wiring.
But again....I will check my exact wiring this evening (4 to 5 hours from now for me
schema.png

Thanks.
Full thread is here : http://www.sudomod.com/forum/viewtopic.php?f=22&t=701
Thanks to Fleder for the IMG

Just found out I'm using a B503....not a B103......not sure if they are compatible....but for the schema:
Note that you can combine the output to the speaker for both channels (you need an additional schema with additional resistors for that) ....for simplicity....I just connected one channel.

see: http://www.sudomod.com/forum/viewtopic. ... 261#p12261 for wiring stereo to the speaker