Archive for the tag 'audio'

MP3 Bitrates compared

A lot of people use some mp3 files right now. I decided to take a look at a spectrum analysis of a sound file at different bitrates. The result is really something, I doesn’t expected..
The original wave file is a radio (FM) recorded… I chose this one, cause this radio have a big noise on […]

admin November 3rd, 2007

Eltax Symphony 6.4 review (Avis ?)

Eltax Symphony loudspeakers are some really cheap one. It cost around 120 Euros here in France. I was looking for a review for this speakers for a long time. How can Eltax sell speakers for this low price.

A month ago, I discover that my old Elipson speakers are quite dead.. too old to rock !! […]

admin July 29th, 2007

Lot of DIY stuffs to do, so litte time, and waiting for holidays

Ok, my english exam is over .. waiting for the final result
I had a lot of stuffs on the way right now, so I hope to have the time to finish them before going on holidays here a little list:

A subwoofer (with a big 12″ woofer that goes damn low !
A subwoofer amp, this is […]

admin July 11th, 2007

Howto hack USB port on a LG LAC-M6500R MP3 Player (CD/Radio/MP3 Player)

Some friends buy me a nice MP3 player for my car last year (birthday): LAC-M6500R
This stuff looks great and you can even plug a hard-drive. The main issue is that the firmware only support 999 files on a single USB device, so that’s enougth for ~4Go of MP3 but not more. So I decided to […]

admin March 4th, 2007

DIY KT88 + 6SN7 push-pull Amp / Part 1

In a previous post, I talk about a new amp project. Since this post, I bought several stuffs to build it. But while looking for parts, I talk with several people. And they convince me to build a push-pull instead of a single-end.
So, I got 4 outputs transformers (2 SE and 2 PP), I gonna […]

admin February 9th, 2007

Howto listen mp3 in the bathroom ?

I was looking for a simple way to listen some good music while I’m not in my living room (hum, I’m mean in the bathroom). There is a lot of small MP3 players right now, the only issue is that most of them cost a lot of money if you want to put a great […]

admin November 19th, 2006

Build a DIY vacuum tube amp ( EL34 / KT88)

I decided to build a tube amp for the fun. In fact I think of that stuff since a really long time now (since the first amp, I ‘ve built ten years ago).
There is a lot schematics on the internet, but finding a good one is pretty hard. I want to build something like that:

Good […]

admin July 17th, 2006

Playing music on soundcard without locking

Why this soundcard allow me to play 2 mp3 at the same time while this doesn’t.. Hum good question. In fact to support this kind of stuff the sound card should support have some sub-device, to be sure .. simply aplay -l
Here on my shuttle .. not working
aplay -l
**** List of PLAYBACK Hardware Devices ****
card […]

admin February 9th, 2005