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Old 24th October 2011, 02:35 PM   #1
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Default USB FLASH as input source

Hi,

I will be straight to the point as I don't have to much time.

I want to feed a USB soundcard with media content directly from USB FLASH( not from PC,you know the cause) and the processed content feeded to a BUFFALO DAC.

Is it possible or I need to use a streaming controller to force the USB FLASH to autoplay like in PC as a USB HOST.

In a schematic from electronic-diy I saw some control buttons,can they control the usb flash?

Ok I think a picture is more valuable ...

See the attachment.
Click the image to open in full size.
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Old 24th October 2011, 02:48 PM   #2
Pano is offline Pano  United States
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It will be interesting to see what chip set you come up with.
Of course there are a number of devices on the market that do just this. From Logitech, Western Digital, Roku and many Chinese brands.

I just bought a WDTV Live Plus to do the same thing. When it gets here, I'll let you know how it works out.
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Old 24th October 2011, 02:58 PM   #3
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Endless choices for (non-PC) audio players that will play content from a flash drive. The problem is trying to use any of them as a host for a USB soundcard.

Why do you insist on this configuration? Just find a player with SPDIF.
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Old 24th October 2011, 03:01 PM   #4
ramallo is offline ramallo  Europe
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I'm looking chinese sellers at eBay , and I found this

Will be a nice start for a mod
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Old 24th October 2011, 07:05 PM   #5
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Quote:
Originally Posted by theAnonymous1 View Post
Endless choices for (non-PC) audio players that will play content from a flash drive. The problem is trying to use any of them as a host for a USB soundcard.

Why do you insist on this configuration? Just find a player with SPDIF.
The cause is that I want to skip the CD player source (I have a C.E.C 680CD,cd mechanical part missing/removed and one Sony CDP-M49 with dual-mono BB PCM63 same problem ) , not because I don't like it (the best natural audio source is the CD player) ,personally I like to have at least one baby: GRUNDING CD9009 or SONY CDP-557ESD , but as they are too hard to get and too expensive ... I will skip them.
And lately to write them as cda files (mp3 never) on a CD every time , just 16-17 tracks,and to increase the size of cd bulks on my bureau ... back to the good times of '90-'99.
I tought that it will be nice to invest some money in the DAC, USB RECEIVER,CONTROLLER ,maybe TRANCEIVER (need some help from you if I need it instead of controller but I doubt it,it's used only like a bridge,receive and transmit) and at least but not at least the signal carrier wich need to be perfect (a good power supply).
I think that I will open a usb flash player or find a schematic of it to figure out how to append to my desired project.

Any tips are welcomed.

TheMasterPC
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Old 24th October 2011, 10:26 PM   #6
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Well, I wasn't questioning why you want to play files from a flash drive. I was questioning why you want to try and use the PCM2707 with something other than a PC (not happening), when it just over complicates things.
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Old 25th October 2011, 07:37 AM   #7
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Well, I wasn't questioning why you want to play files from a flash drive. I was questioning why you want to try and use the PCM2707 with something other than a PC (not happening), when it just over complicates things.
The reason of using a flash drive is the storage ofcourse , it is decided ... I don't want to use PC in SW decoding process.
The PCM2707 it was just an option ,but is only a usb audio receiver so it will be skipped from my schematic.
I found some info's about BU9432 , a all-in one chip wich acts like a controller,decoder,system controller,dac so i need to figure out how to find a solution of how to don't use the dac or the decoder(usually mp3 decoder),whell for my design I need to use separate chips(usb controller,usb audio codec for the decoding part,system controller -maybe a PIC).
It will not be easy but I have the picture in my mind.
I really want to do this.
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Old 25th October 2011, 01:12 PM   #8
Pano is offline Pano  United States
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BU9432 does not look like the best option for you. It does only MP3 (and MP1, MP2) and has no digital out. Too bad, it's a nice one chip player.

You might find a chip or chip set that does what you want but with SD flash memory, not USB. Try looking in that direction.
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Old 25th October 2011, 02:27 PM   #9
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The best solution is FT232H+ PIC16F688+VS1063DS+BUFFALO DAC.
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Old 25th October 2011, 02:27 PM   #10
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Here you go, just buy it and save yourself a ton of time and inevitable headaches.....

QA-550 WAV Player to SPDIF&I2S for DAC =Hi-End Audio CD | eBay
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