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Pictures of Your Portable Rig (part XVI) - Page 97

post #1441 of 13943

Is the PortaDAC as big as a Matrix M-Stage??

post #1442 of 13943

I have never seen the M-Stage? How come. This is not too big at all, thinner than iPhone 4 and a inch longer. Not to heavy either. M-Stage can not be used as a DAC for absolutely anything (minus amp3 players without bluetooth) like this.

post #1443 of 13943

What's the battery life with the Nexus/BT/Amp setup? And does the Nexus transmit the audio uncompressed? I read that the S3 can do this, so I'm guessing it can.

post #1444 of 13943

OOh, i have not actually ran it out yet. I have been going at least 7 hours at a time with the 1866 on BT, maybe more as i am charging to be on the safe side. The N7 easily out lasts that, that thing never runs out.

 

I am not sure what you mean there. It is sending the audio as digital, not analog because you us the 1866 DAC and amp. It is lossless as well because i have been using FLAC and WAV and it sounds amazing for sure!

 

With the Cosmic Ears MA2 as this thread is all about the pics!

 

 

AppleMark

post #1445 of 13943
Bluetooth audio (A2DP) is lossy (very much so, audibly so last time I tried), doesn't matter that your sources are lossless. The codec that's used by default, SBC, is actually worse than MP3. No idea what codec your Bluetooth receiver uses though, as no specs are available at this moment.
Edited by skamp - 1/21/13 at 7:05am
post #1446 of 13943

Does anyone still use A2DP?

 

I think Bluetooth has come on a bit since then.

post #1447 of 13943
Quote:
Originally Posted by Dreamnine View Post

Does anyone still use A2DP?

I think Bluetooth has come on a bit since then.

There's no other profile for audio. Recent revisions didn't change that.
post #1448 of 13943
Apparently Apple products support AAC over bluetooth at ~264 kbps, maybe his Bluetooth receiver supports that as well, who knows. That would be much better, and probably transparent. Using lossless sources is still preferable, so that no lossy-to-lossy transcoding takes place.
Edited by skamp - 1/21/13 at 7:24am
post #1449 of 13943

I thought bluetooth transfers the files digitally and the decoding is done by the DAC, or am I wrong?

 

What if it is just done like a file transfer and the DAC does all the rest, or is it not as simple?

post #1450 of 13943
There's not enough bandwidth to just transport the original PCM data, untouched. Lossy transcoding must be done before wireless transport. The default codec is SBC, which is supported everywhere but is pretty bad. There are optional codecs allowed by the A2DP spec, among which, apt-X (which is allegedly transparent, but has very limited support), and apparently, AAC-LC (which should also be transparent, supported by iOS Apple devices). Apple recommends using AAC for all accessories designed for their products.

The big question is, what does the MyST support? The product page doesn't say anything at all.

Edit: and I don't know why the spec didn't allow for just transporting the original AAC or MP3 files untouched as data, and including those decoders with every receiver. Price maybe? All I know is that everything gets systematically transcoded.

Edit 2: even the $500 Parrot Zik bluetooth headphones use SBC. Blah!
Edited by skamp - 1/21/13 at 7:54am
post #1451 of 13943
Quote:
Originally Posted by AyeCee View Post

The epitome of laziness right here. 

 

Quote:
Originally Posted by Greed View Post


Don't think he/she can upload pictures yet, it's there 2nd post.

 

Quote:
Originally Posted by Santo8891 View Post

I think coz he can't post picture yet..
 

 

 

Sorry for that i just cant upload an image here "There was a problem submitting this to the server. Please try again." 

 

[URL=http://picturepush.com/public/12011325][IMG]http://www2.picturepush.com/photo/a/12011325/640/12011325.jpg[/IMG][/URL] ive tried to upload it but it doesnt post oh no!

 

this is my Sony Walkman Z and Audio Technica ATH-M50 i can go anywhere with those even im naked 

 

by the way im just a newbie got 3problems

 

 

 

this is my Sony Walkman Z and Audio Technica ATH-M50 i can go anywhere with those even im naked 

 

by the way im just a newbie got 3problems

1st.i need a charger (ac adapter )

2nd. need high quality of songs for free do you where?

3rd. do i have to buy dac or amp and which kind?

 

thank youu


Edited by usernamekoh - 1/21/13 at 7:38am
post #1452 of 13943
Quote:
this is my Sony Walkman Z and Audio Technica ATH-M50 i can go anywhere with those even im naked 

Why would you go anywhere naked, dude... Where do you put the Walkman if you decide to "go anywhere" naked?

 

for the questions, post them in appropriate thread. Plus, you can actually google the answer for number 2, go to an electronic store for no 1 and look for the Sony Z thread for no. 3

 

I'll help with the pic

 

 

post #1453 of 13943
Quote:
Originally Posted by usernamekoh View Post

1st.i need a charger (ac adapter )

Amazon

2nd. need high quality of songs for free do you where?

Bandcamp, Google

3rd. do i have to buy dac or amp and which kind?

Not really necessary for your current headphones

 

thank youu

post #1454 of 13943

Keeping it simple today...

 

 

 

 

AppleMark

 

AppleMark

 

AppleMark

 

post #1455 of 13943
Quote:
Originally Posted by rianchaos View Post

Why would you go anywhere naked, dude... Where do you put the Walkman if you decide to "go anywhere" naked?

 

for the questions, post them in appropriate thread. Plus, you can actually google the answer for number 2, go to an electronic store for no 1 and look for the Sony Z thread for no. 3

 

I'll help with the pic

 

 

 

Do you ever see those rubber band fiio or some other manufacturer gave you? you use that to latch your DAP stack to your body no?
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