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Author OGG files or MP3 files.
molski
P900 no flip
Joined: Jul 02, 2004
Posts: 67
From: Holland
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Posted: 2004-07-07 17:11
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I'm gonna buy a MS Duo stick 128mb so that I can listen to music when I go on vacation. But now I have a few little questions about that?

What is a "good" bitrate to convert MP3 files into OGG? I used 128 and that sounded good. OGG Files are smaller, so there is almost no doubt that I gonna use OGG instead of MP3. But what is the "lowest bitrate limit" to use with OGG files? 128, or can I can use lower, like 96 and still have "CD Quality" ?

But...., an example:

I got 2 MP3 files of the same length, lets say 4 minutes. One of the MP3 files has a bitrate of 128 and te other MP3 file a bitrate of 192.
If I both convert these files to OGG with a bitrate of 128, does the quality in the OGG files will be different? And the filesize? Does it matter for the filesize what bitrate the original (the MP3) files have?

Molski
kramer_hpal
P990 no flip
Joined: Jul 06, 2004
Posts: 158
From: Turkey, Istanbul
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Posted: 2004-07-07 17:48
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"I got 2 MP3 files of the same length, lets say 4 minutes. One of the MP3 files has a bitrate of 128 and te other MP3 file a bitrate of 192.
If I both convert these files to OGG with a bitrate of 128, does the quality in the OGG files will be different?"
---no the quality will be same.
"And the filesize? Does it matter for the filesize what bitrate the original (the MP3) files have?"
--The filesize will be same too. it doesnt matter the bitrate of source file.

i tried 60 bitrate and mono sound. there is no difference between this and 192kbps stereo mp3 file if u listen with loud speaker in the phone. but if u listen with headphones, i recommend u stereo and minimum 92kbps. cos, the speaker of phone cant give the sound exactly even its 500000kbps:D.
a_p_a_n_d_e_y
P900
Joined: Jun 07, 2004
Posts: 308
From: Bangalore, India
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Posted: 2004-07-07 17:54
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As a rule of thumb, you can always rip oggs at a lower bitrate than a similar quality mp3. In fact converting a 128 kbps mp3 to a 128 kbps ogg is not very useful.

Here is why:
A normal mp3 is constant bitrate (CBR)... ie, 128kbps mp3 consumes 128 kilo bits for 1 second of sound.
On the other hand ogg is variable bit rate (VBR). So, a 128 kbps ogg will mean that the average bitrate will be kept at around 128kbps. So, when there is lesser detail in your sound and less data can represent that without a loss of quality ogg encoder will use lower one. When music changes rapidly and more data is needed to represent the change a bitrate higher than 128 will be used. By law of averages, it will create a file size roughly equal to that of 128 kbps CBR.

Now, if your source is 128kbps mp3, the maximum detail it has is 128 kilo bits per second... and hence whatever you rip will be lower than this. I have practically seen a 96 kbps ogg as good as a 128 kbps mp3 (however even lower might be possible... depends on how much u experiment and more on the type of music)

I hope I was usefully informative
a_p_a_n_d_e_y - a_p900
p900 lover
W960
Joined: Jan 08, 2004
Posts: > 500
From: London
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Posted: 2004-07-07 17:56
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on the topic of ogg files how do i convert mps to ogg??

a_p_a_n_d_e_y
P900
Joined: Jun 07, 2004
Posts: 308
From: Bangalore, India
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Posted: 2004-07-07 17:58
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I use dBpowerAmp
There are other applications around as well. Just do a search to find older topics discussing conversion software
a_p_a_n_d_e_y - a_p900
Greeny
K700
Joined: May 19, 2004
Posts: 187
From: Wales
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Posted: 2004-07-07 20:54
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dbpower amp is the boss for converting mp3 to .ogg files......
44100 hz = frequency
64 kbps
and set at constant bitrate

creates files half the size of mp3 and with no loss in quality! (for me anyway!)
goodluck [addsig]
molski
P900 no flip
Joined: Jul 02, 2004
Posts: 67
From: Holland
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Posted: 2004-07-07 21:54
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Apandey, Greeny and the rest.....ThanX!!

Now I know what to do

Regards,

Molski
molski
P900 no flip
Joined: Jul 02, 2004
Posts: 67
From: Holland
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Posted: 2004-07-07 22:43
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I converted some D12 MP3 files and they still sound perfect at 96 kbps after that I did one at 64 and it still great! It has gone from 5,7MB to 1,8MB
Now I only need is a converter from 2.5 to 3.5 to use my own Zennheiser headphones. Then it would really kick ass!

Molski
Greeny
K700
Joined: May 19, 2004
Posts: 187
From: Wales
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Posted: 2004-07-08 00:39
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buy an adaptor to fit in your phone - i got one from e-bay £3.50 and i use any h/phones i like! (make sure you get closed cup headphones much better sound!) [addsig]
grex
P910
Joined: Sep 01, 2003
Posts: 401
From: Parsley (university of)
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Posted: 2004-07-08 02:41
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@Greeny you are 100% correct, the 64k oggs sound just fine through the 'phones
senninha
Xperia X10 Black
Joined: Jan 05, 2003
Posts: > 500
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Posted: 2004-07-08 04:46
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for the phone's speaker, i use 48kbps and it sounds just fine. may need to be higher if you use headphones.
molski
P900 no flip
Joined: Jul 02, 2004
Posts: 67
From: Holland
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Posted: 2004-07-08 09:22
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eople, I am looking for a 2,5mm to 3,5mm jackplug converter, but the kind that exist out of "one plug", but with 2 seperates jackplugs (male and female) with a few centimetres of audiocable between it and the 2,5mm plug must not be straight, but with a 90 degree angle so it wll fit good on my P900.
I saw them a few weeks ago on ebay, but cannot find them anymore
I live in Holland, does anybody know of any stores where I can order it and after that pay the postman, or where I can first transfer the cash and then receive it (but not with a creditcard) ?

Molski
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