I Have a $99 WDTV media serve but the audio is resampled 48KHz. The video part is quite good. WD has a website where people can propose and vote for features. Here is the one for "bit-transparent audio playback":
http://wdtv.uservoice.com/pages/17442-general/suggestions/204885-bit-transparent-audio-playback
http://wdtv.uservoice.com/pages/17442-general/suggestions/204885-bit-transparent-audio-playback
Very likely the SMP8635LF chipset can output 48kHz only. The chipset is aimed at inexpensive DVD/BluRay playback.
Its not a limitation of the chipset. I have an Egreat EG-M34A which also uses the Sigma Designs SMP8635LF chipset.
It has no problem passing bit-perfect DTS-CD audio at 16/44.1 to my processor.
It has no problem passing bit-perfect DTS-CD audio at 16/44.1 to my processor.
satgeek said:
I'm curious if your Egreat can pass also 24/96 khz HD Audio through digital out to an external DAC and this DAC will lock on 96 khz.
WDTV passes the 16/44 but when it comes to pass 24/96 format it will send it downsampled to 48 khz
with the last firmware the audio clipping issue was also resolved thus now they say is outputing "bit perfect" 16/44
I'm fairly certain that it does pass hi-res audio since it does play files up to 24/192 but I can't confirm since the processor which I am using at moment only does up to 24/48.
Remove the Toslink transmitter. Add a buffer (optional). I did that with a laserdisc player which had an unpopulated optical output. http://www.diyaudio.com/forums/showthread.php?threadid=130129 There's a sketch of the layout and schematic I used, and pics of the board I made in the bathtub.
If the WDTV doesn't use 5V inside, use a chip which is 3.3 volt compliant and adjust the voltage divider appropriately. If you want a coupling transformer, I've heard you can use the little toroid transformers out of an ethernet card.
If the WDTV doesn't use 5V inside, use a chip which is 3.3 volt compliant and adjust the voltage divider appropriately. If you want a coupling transformer, I've heard you can use the little toroid transformers out of an ethernet card.
dangus said:
Thank you very much dangus! I will try to find more info from the ones they made this mod.
I read in another forum someone get signal directly from TTL to DAC!
Dunno if this is better 😕
I bought the WDTV expecting to be able to play FLAC files directly, with an acceptable audio quality. I was desappointed with the sound quality and there is a high pitch tone constantly present. If I burn the FLAC file to a CD, and play it on my Oppo, I get great sound quality (to m ears anyway)
I returned the unit today. I guess I got what I paid for. Any other low cost options to play FLAC, but with a better sound quality ?
I returned the unit today. I guess I got what I paid for. Any other low cost options to play FLAC, but with a better sound quality ?
Dear GLT,
You sure about the change in sampling frequency. This really sucks, I have the WDTV, didn't know about it until you mentioned it.
How do you test what the sampling frequency is on the output (quick and dirty solution), put it to an AV amp?
Does anyone know any player that will have direct pass through. I have the Rhapsody Hardisk player and it features a remote control on the volume. Unfortunately, it also means some processing has been done on the signal.
Dear Satgeek,
I noticed that the Egreat has volume control on the remote control, so does the remote control affect the Toslink, if it does, that means some sort of processing has been done on the digital signal lbeit it could be quite minimal.
Oon
Oon
You sure about the change in sampling frequency. This really sucks, I have the WDTV, didn't know about it until you mentioned it.
How do you test what the sampling frequency is on the output (quick and dirty solution), put it to an AV amp?
Does anyone know any player that will have direct pass through. I have the Rhapsody Hardisk player and it features a remote control on the volume. Unfortunately, it also means some processing has been done on the signal.
Dear Satgeek,
I noticed that the Egreat has volume control on the remote control, so does the remote control affect the Toslink, if it does, that means some sort of processing has been done on the digital signal lbeit it could be quite minimal.
Oon
Oon
The Egreat volume control goes from -15 to +15. Only at "0" does it pass bit-perfect audio. I tested this with both the default audio player and mpd which BTW runs fine and is my preferred player.
Its toslink transmitter can pass up to 24/96. It can send 24/192 to my Buffalo32 over a coax that I soldered under the toslink transmitter.
Its toslink transmitter can pass up to 24/96. It can send 24/192 to my Buffalo32 over a coax that I soldered under the toslink transmitter.
Dear Luxury54,
Okay guys, I am a bit confused, if the original .wav files is 16/44.1 it passes through without being rersampled to 48KHz right, only if it is 24/96 that it down samples to 16/48?
Is this correct?
I thought the 16/44.1 gets resampled to 48KHz...
Oon
Okay guys, I am a bit confused, if the original .wav files is 16/44.1 it passes through without being rersampled to 48KHz right, only if it is 24/96 that it down samples to 16/48?
Is this correct?
I thought the 16/44.1 gets resampled to 48KHz...
Oon
satgeek said:
Interesting media player ... and the price is good !
It's using the AKM AK4420 DAC and capable of 24/192
specs are : 5V 192kHz 24-Bit 2ch DAC with 2Vrms Output
http://www.asahi-kasei.co.jp/akm/en/product/ak4420/ak4420.html
How is the audio quality and FLAC playback ?
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