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geekhack Projects => Making Stuff Together! => Topic started by: jonlorusso on Thu, 25 June 2015, 13:18:00

Title: Audio inputs
Post by: jonlorusso on Thu, 25 June 2015, 13:18:00

I am thinking of putting something like this (http://www.amazon.com/Virtual-5-1-surround-External-Sound-Card/dp/B000N35A0Y/ref=pd_sim_147_1?ie=UTF8&refRID=0NVC2P3KCPFKN4AW1FY9) inside my keyboard, to make it more like a dock.  Ideally, it would be a combo mic/headphone like the ones you find on mobile phones and laptops, but I haven't found a usb adapater like this.

Has anyone tried this?  I need Linux compatibility so it might not make sense to go with the dirt-cheapest option.

Title: Re: Audio inputs
Post by: jonlorusso on Fri, 26 June 2015, 08:13:42

Quote

combo mic/headphone like the ones you find on mobile phones and laptops

Since i'll be disassembling the thing anyway, I could just wire something like this (https://www.sparkfun.com/products/11570) up instead of the two separate 3.5mm jacks

Title: Re: Audio inputs
Post by: suicidal_orange on Sat, 04 July 2015, 03:32:44

I posted this when GH first reappeared, but it's gone!

USB audio is a standard so any cheap "plug and play" or "no drivers required" device will work with Linux, it's only some expensive "Audiophile" DACs that will not as they spent some of the extra money writing a custom driver for more features.

The only thing that might not work is volume control, but you can control it in software so not a big problem.

Title: Re: Audio inputs
Post by: mrflow3r on Sat, 04 July 2015, 09:17:03

Like suicidal_orange says, USB audio is usually driver free even in Linux. For the sake of simplicity, just use a good quality DAC and keep to minimal buttons and knobs.
There are tonnes of USB DAC schematics available in DIYAudio.