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"Bit Perfect Output"
#2
(12-08-2020, 06:33 PM)The Red Guy Wrote: Hello Folks,

I've been saving like mad and have just put down a deposit on an Audiobyte Hydra Vox DAC.

The way this DAC updates it's firmware is rather unusual, the update files are encoded within .wav files.

For this to work, the file needs to pass to the DAC unchanged, so I'm wondering if Moode Heart  allows data to pass "as is" via USB?

I'm using an Allo USBridge Sig as my source BTW.


Thanks to anyone taking the time to reply,

Red.

This scheme sounds pretty radical but when you're designing with an FPGA I guess all ya need is a bunch of extra gates to code the in-band updater!

Their documentation says

Quote:1.Download and unpack the appropriate zip file;
2.Set the DAC input on USB;
3.Make sure that on the PC side the playback is bit-perfect(attenuation is set to 0dB, channels are not inverted, no DSP effects are added etc.);

while the docs for MPD (the renderer in moOde) say

Quote:By default, MPD attempts to do bit-perfect playback, unless you tell it not to. Precondition is a sound chip that supports the audio format of your music files. If the audio format is not supported, MPD attempts to fall back to the nearest supported audio format, trying to lose as little quality as possible.

So, bit-perfect playback should be possible if you observe what's said in the two quotes.

Good luck.

Regards,
Kent
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Messages In This Thread
"Bit Perfect Output" - by The Red Guy - 12-08-2020, 06:33 PM
RE: "Bit Perfect Output" - by TheOldPresbyope - 12-08-2020, 11:22 PM
RE: "Bit Perfect Output" - by Tim Curtis - 12-08-2020, 11:27 PM
RE: "Bit Perfect Output" - by The Red Guy - 12-11-2020, 05:54 PM
RE: "Bit Perfect Output" - by TheOldPresbyope - 12-11-2020, 06:27 PM

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