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I finally got my bithead to work with the ASIO4ALL! But there is still a small problem. When the music becomes quiet (or just before it starts) I can hear a high-pitch noise. By playing with the low-gain/high-gain switch on the bithead, and volume control, i minimized this tone to quiet levels. But it is still there...
Total BitHead filters, re-regulates, and runs of the computers USB power bus. If, however, you are of an audiophile mind, turn the power switch on and the Total BitHeads digital-to-analog converter (DAC) and power amp section will run off the internal batteries for ultra-clean performance and lower power drain on your computer.
Err.. I haven't got a TBH myself but I might be able to think of a few things that might be wrong.
1. You might be hearing a harddrive or another component (fan maybe) in your computer. USB devices sometimes do have this problem. Take it up with headroom. They might have a solution for it.
2. It could be that your are hearing white noise. If so this is caused by cheap components in the the TBH. I can't imagine that headroom put really expensive components in a $200 amp. (no offense - I think the TBH is a great amp) Once again. Take it up with headroom.
3. The Asio driver does not support the TBH well. Take it up with the guy who made asio. There is a forum on the asio4all website. You can post your problem there.
I think it has to do with either the first or the second thing I described. So you can try asking Tyll or someone else of headroom. Maybe they've got a solution for you.
EQ does indeed alter the signal. It will not be bit-perfect anymore. It might however not even be audible so if you think you need an EQ then just use it. If however you really want to use bit-perfect playback you can not use EQ.
Edit: Some soundcards have their own EQ. If this EQ is placed "after" the DAC you can use it without losing any quality since it is only changing the analog signal. This is not common for a soundcard though. Most soundcards have their EQ placed "before" the DAC.
Hey thanks for your reply. I am just baffled at why the Bithead has this pitch only with ASIO; it works completely fine with DS (it does not play with KS however).
Hey thanks for your reply. I am just baffled at why the Bithead has this pitch only with ASIO; it works completely fine with DS (it does not play with KS however).
Thanks for asking. I put the DSP question in the FAQ.
This thread is much appreciated. Thanks EnOYiN for putting it together and everyone else who is adding to it.
You better appreciate it.
@ Xenithon
I tried USB-ASIO. It works well with my Porta Corda MkIII-USB. However I doubt if it's worth the extra $76. Maybe ASIO4All comes up with the same thing. Let's hope for the best since I can't afford to spend so much money on a program which has a free equivalent which is nearly as good. ( the beeps make you not want to buy it - bloody annoying )
I followed your guide and did everything(I think...I have Asio4all and the plug-in installed in foobar components) and get to the point where I must map the ouput, here:
...but my "USB audio DAC" doesn't show in the box. I'm using a Porta Corda USB DAC/amp and it only works when I select " DS :USB audio DAC" in the ouput device box.
My Edirol comes with Asio drivers, so I don't need Asio4All, but I messed about with it for my onboard laptop sound card as per 1st post. For some reason it must have convert 44.1 <> 48 switched on otherwise Foobar won't play files. No biggie seeing as I have a external sound card, just curious
__________________ Edirol UA-25 |RSA Tomahawk T115 | UM2 | AT ESW9 | iPod Nano 4G 16GB Product Red
Feedback |£866.77 since joining Head-Fi | My DVD Collection
...but my "USB audio DAC" doesn't show in the box. I'm using a Porta Corda USB DAC/amp and it only works when I select " DS :USB audio DAC" in the ouput device box.
Do you have any advice?
Did you set up asio4all with the Porta Corda USB before you started foobar? If not, that is your problem. Close foobar, have the Porta Corda hooked up to the USB and turned on, then go into asio4all and Enable the USB device, and Disable any other sound devices asio4all sees.
Then close asio4all, and restart foobar - you should now see the Porta Corda as a device, unless its USB drivers just don't play nice with asio4all.
My Edirol comes with Asio drivers, so I don't need Asio4All, but I messed about with it for my onboard laptop sound card as per 1st post. For some reason it must have convert 44.1 <> 48 switched on otherwise Foobar won't play files. No biggie seeing as I have a external sound card, just curious
Some soundcards have a problem using ASIO. This is why the fucntion is there. I am working on a part that explains these options. Sadly I do not have unlimited time to add things so it will take a while. I am editing as fast as I can. Thanks for pointing it out.
BINGO!
I was hoping it was something as simple as that.
Thank you !
I am not sure about the order in which I described it. And I did not yet describe that you will have to add a new device before you can edit it. If the order of some things seem wrong to you somehow please tell me so I can edit it. When I install everything again it will automatically add device and use them and map the devices. So I can't see in what order you will have to install things. Thanks in advance.
I am not sure about the order in which I described it. And I did not yet describe that you will have to add a new device before you can edit it. If the order of some things seem wrong to you somehow please tell me so I can edit it. When I install everything again it will automatically add device and use them and map the devices. So I can't see in what order you will have to install things. Thanks in advance.
It all seems to be working properly and i'm using iTunes w/ foobar.
I see that you're using the same amp that I am??? with your PC. I'm trying to understand just how using this "bit perfect" output will give me better SQ into the Porta-Corda MkIII-USB. Is this a correct way to use foobar with ASIO outputing the signal via USB as I am?
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Linear Mode
