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Raspberry Pi gets its own sound card

engadget.com

31–33 of 33 posts

Re: Raspberry Pi gets its own sound card

#31

Raspberry Pi has USB right? So why not just get a Schiit Modi? A very high quality DAC that can be entirely USB powered.

The Schiit Modi is double the cost of the Wolfson card and has no audio input capabilities. Seems like for uses outside of an HTPC the Wolfson card provides a lot more flexibility.

Re: Raspberry Pi gets its own sound card

#32

Earlier quoted context omitted.

usually when people do [1] or something like that it's to a link. to my ear the audio out of the pi's hdmi port is perfectly fine. i think the DAC used in the RCA jack is probably not very good. I would pay for a HDMI audio to DAC adapter rather than $33 for another soundcard that just works with the pi.

Are there any sub-$100 HDMI DACs that do 5.1 or 7.1? That would be amazingly useful if so.

yes, check ebay http://www.ebay.com/itm/AC3-HDMI-Dolby-HDCD-5-1-2-1-96KHz-24...

almost every HDMI decoder chip has 4x I2S outputs and just spits out digital audio

for example ADV7604

Cheap chinese HDMI-2-VGA adapters use chinese made hdmi receivers, those lack proper i2s outputs and provide only 2 channel SPDIF. example: http://www.taker.im/up/138624609420664378890.jpg http://lontiumsemi.com/English/ProductShow.asp?ProductId=4

Re: Raspberry Pi gets its own sound card

#33
post #28

Raspberry Pi has USB right? So why not just get a Schiit Modi? A very high quality DAC that can be entirely USB powered.

The USB on the Pi has some issues. A lot of devices need to use an external, powered USB hub because the board can't supply enough. Your ethernet is also going through the USB hub.

The issue with usb on rpi is that it's unstable. It can drop messages. For ethernet it doesn't mean much, because packets will be retransmitted, but for audio it means sound will occasionally stop for a moment. It's very annoing.
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