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Hisoundaudio Rocoo Review - Page 2

post #16 of 44
4/15/10 at 3:23pm
where to download the latest firmware?
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post #17 of 44
4/15/10 at 3:23pm
Thread Starter 
Quote:
Originally Posted by Rockford View Post
This is a deal breaker for me hands down, having your perfectly tagged albums not play tracks in order is silly and even $10 Chinese player can accomplish this hefty task.

I am also curious about the hiss as you have completely left it out was it not noticeable? Also the channels being swapped, was this issue also resolved?

Enjoyed the read, looking forward to your response.
This is a Rockchip issue. The other Rockchip player here (generic yum cha thing) has the same problem. It doesn't sort files internally, it just preserves whichever order they were copied in. This isn't a problem as most file managers copy files in the order they're sorted. So it just mimics the file manager's order, but if you add files in a new copy session, they're going to go at the end. It's not such a big deal as for one it preserves Windows/Total Commander's sorting by extension But, to re-sort files when adding to a directory the directory has to be moved to the hard drive first, then moved back to the player with new files.

There's no hiss! Not with headphones anyway, there's very, very slight hiss with VSonic R-02 Pro canalphones and AKG K-12P earbuds. But there's no hiss with any headphones. Early firmware build used to hiss and crackle with EQ; that's been fixed with the new firmware update (player here drives modded Denon AH-D1000 with EQ set to +1 notch on all bands and +2 notches on 250 Hz).

Channel swap is a beta batch problem, production units won't have that (it's a simple soldering or labelling error in pre-production).
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post #18 of 44
4/15/10 at 3:24pm
Thread Starter 
Quote:
Originally Posted by chengdude View Post
The Cube C30 uses a SigmaTel 3770 SoC and a Maxim MAX9722 amp. There's BBE as well, but not the full suite of effects as you'd find on a Cowon player. You can pick one up for about $35 (4GB) or $50 (8GB) in China.

The Rocoo-A uses a Rockchip RKnano chip and an unknown "Class A" amp. The RKnano is Rockchip's answer to SigmaTel: a low-cost, audio-centric chip with long battery life. How low-cost? Teclast (T51/s:flo2) makes a USB stick player with the RKnano for about $20 (4GB).

Otherwise, the Cube and the Rocoo are physically the same player.

I was going to mention something about "fairy dust", but since I know little else about -nor have listened to- the Rocoo, I'll just leave it at that.
You're welcome to contribute one for review
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post #19 of 44
4/15/10 at 3:25pm
Thread Starter 
Quote:
Originally Posted by a_tumiwa View Post
where to download the latest firmware?
Mail Hisoundaudio?
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post #20 of 44
4/15/10 at 3:59pm
Seidhepriest,
Are you involved in the development of Hisoundaudio's players?
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post #21 of 44
4/15/10 at 9:50pm
Quote:
Originally Posted by david1978jp View Post
Seidhepriest,
Are you involved in the development of Hisoundaudio's players?
He sounds legit to me, and he sure didn't tip-toe around its faults. The hisound shills were really obvious.
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post #22 of 44
4/15/10 at 10:38pm
Quote:
Originally Posted by Zida View Post
He sounds legit to me, and he sure didn't tip-toe around its faults. The hisound shills were really obvious.
I actually wish we can have hisound employees to discuss with. For example, about "hiss", now they have 3 versions of Recoo, can they give us lists of matching earphones before we buy?
When AMP3 was in production, hisound insisted "no EQ", EQ degrades sound quality; but there were two sets of firmwares for US and other region (slightly different sounding) - does it make sense to you? And, who can forget someone claimed 192 k mp3 sounded better than lossless on AMP3? If there were hisound employees around, we can have them clarify all sorts of mysteries.
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post #23 of 44
4/15/10 at 11:03pm
that was probably because lossless would sometimes skip (i hear, i never tried it). I agree it would be nice if there was an honest hisound employee on the forum to answer questions. i assumed you were accusing him of being one of the shills and i didn't at all think he was, i misunderstood what you were going for there.
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post #24 of 44
4/15/10 at 11:04pm
I made that remark about the amp3 and the sound of 192k versus flac and I most certainly do not work for hisound!!Why must anyone who says anything complimentary on this forum now be assumed to be a supporter of the product sales, you guys and your attitudes will kill this forum whereby it will become a place where people only spend time in finding fault with players and products, but maybe that's what the majority of head fiers want!!
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post #25 of 44
4/15/10 at 11:10pm
I didn't know that anyone actually posted impressions that lossy actually sounded better, i just remember hisound advertising something along those lines. I don't think either of us were targeting you in particular.

since we have someone here that agreed that 192 sounded better, do you have any thoughts as to why that might be, or any ways to describe how it was actually better? Since we now have it reported by OP that hisound programmed their own decoding method instead of using the rockchip i'm interested in what they're doing.
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post #26 of 44
4/15/10 at 11:43pm
Thread Starter 
Firmware translation/QA/testing. Not staff.
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post #27 of 44
4/15/10 at 11:54pm
Thread Starter 
Lossy can sound better. It's a bit tricky.

You see, the real detail limit for sampling is sampling rate/8 (there're going to be lots of "sampling champions" around here trying to prove it's really 2...). 8 coordinates are required to describe a sine wave. 44100/8=5512.5 Hz. That is the detail limit for CD audio. Everything above that gets ever more rarified and hollow, losing definition. That is a fundamental problem of sampling, BTW - the higher the frequency, the less detail.

Now, MP3 compression works by cutting harmonics. It also does lowpassing, for 192 kbps the cutoff would be something like 18 KHz (or even 16?). So what does that do? Simple, it cuts off the harshest harmonics. The result is a bit woody/darkish/flat/spaceless sound, but it also cuts off the harshest part of CD audio - the highest frequencies closest to Nyquist limit. MP3 compression also deals better with peaks - it doesn't sound as harsh with overcompressed audio as the original CDs with 0 dB peaks or sawed-off peaks. Finally, a good MP3 decoder at 24-bit or higher using MP3 files encoded from 24-bit waves does have the chance of having better waveform definition than CD audio (which is 16-bit).

So, long story short, yes, MP3 can sound better than CD audio. It's not really "better", rather, "lacking [harsh] harmonics", but to some people that'd be "better". It's a big question what's "better" - coarse treble/high-frequency harmonics or less harmonics.
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post #28 of 44
4/15/10 at 11:54pm
Isnt Firmware translation/QA/testing work that should be done by their staff?
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post #29 of 44
4/15/10 at 11:56pm
Thread Starter 
You know, the quality of translation is different. And since they're sending beta players to testers, well, that qualifies as QA/testing, doesn't it?
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post #30 of 44
4/15/10 at 11:57pm
Thread Starter 
Quote:
Originally Posted by Zida View Post
that was probably because lossless would sometimes skip (i hear, i never tried it). I agree it would be nice if there was an honest hisound employee on the forum to answer questions. i assumed you were accusing him of being one of the shills and i didn't at all think he was, i misunderstood what you were going for there.
There was some skipping with long (over 20 minutes) FLAC files encoded with FLAC 1.1.something-early. There isn't with new FLAC versions.
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