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Polyphonic ringtones 16 24 32 40 ??? |
Al
Joined: Mar 11, 2003
Posts: 6
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OK, I`m going to be very pedantic here.
Quote:
On 2003-05-07 10:15, orange wrote:
"Even if MIDI track has polyphony level of 16, it can have e.g. 64 instruments. The number of instruments and max. polyphony is not binded in any way. "
- Although you have 128 midi instruments to choose from, you can only play 16 instruments at the same time, since it`s usualy 16 midi channels in a set-up (one instrument pr. channel).
It`s true that the number of polyphony has nothing to do with the number of instruments (if you have a polyphony limit of 32 you could for example play 5 notes on drums, 10 on piano, 7 on strings, 1 on bass, 5 on guitar and 4 on choir simultaniously)
There are MANY MIDI files that uses this amount of polyphony. If you try to play a Standard MIDI file with a greater polyphony than the phone supports, the phone will simply cut notes randomly, and the result is usualy crap.
So will a ringtone made for Nokia sound better on a SE with greater polyphony?
The answer is - it depends.
If it`s a Standard MIDI file it won`t, but both Nokia and SE phones support another format called SP-MIDI (Scalable Polyphonic MIDI) which was developed specificaly for mobile phones.
A SP-MIDI file is basicly a standard MIDI file with an extra code implemented. What this code does is determine which instruments to play on what phone. If it`s a phone with 4 tones polyphony, the composer has pre-programmed which instruments to play on that phone. And if the phone support 32 tones it`s the same thing.
This means that a SP-MIDI file can be made (and work well) for both a Nokia 3510 (4-tones) and a SonyEricsson T310 (32 tones), but of course sound better on the latter.
Hope this wasn`t too complicated. 
Take care!
Al
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orange
Joined: Mar 13, 2002
Posts: 397
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Quote:
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On 2003-05-07 19:33, Al wrote:
- Although you have 128 midi instruments to choose from, you can only play 16 instruments at the same time, since it`s usualy 16 midi channels in a set-up (one instrument pr. channel).
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In MIDI format 1, which is most commonly used, one channel can include multiple tracks containing different instruments. For example MIDI files for Nokia MIDI enabled phones can include 65 different instruments. |
thescorrpion
Joined: Mar 07, 2003
Posts: 137
From: Mumbai, India ..
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@ Al
are u sure the t310 got 32 voice polyphony ?
Ok so the scorpion stings, I DONT !!! |
Al
Joined: Mar 11, 2003
Posts: 6
PM |
ORANGE: I`m not sure if I understand you, but MIDI format 1 contains multiple tracks each playing on different channels. MIDI format 0 merge all sequences into one track which is set to play back on "any" channel. One MIDI cannel can not play multiple instrument simultaniously, but you can change an instrument within a sequens by implementing a program change command. The sequense could then for example play a guitar sound first and then change to a piano sound, but the guitar and piano could not play on the same channel at the same time.
...like anyone cares
SCORRPION: I`m pretty sure the T310 has 32 tones polyphony. I made several of the ringtones that comes preloaded and some of the ones you can download from SE.
Peace!
Al
[ This Message was edited by: Al on 2003-05-09 12:36 ] |
Swag
Joined: Jun 21, 2002
Posts: > 500
From: Oslo, Norway
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Yepp, the T310 has 32 channel poly's!
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jonbob.com
Joined: Apr 28, 2003
Posts: 175
PM, WWW
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Quote:
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randomix wrote:
In fact, there're not many midi with 32 chords on Internet
Most of the Midi on Internet is below 16 chords
but I have some 128 chords midi come with my Live sound card
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I don't know about that, I have a fair few 200+ poly XG midi files. And they sound bloody fantastic. |
orange
Joined: Mar 13, 2002
Posts: 397
PM |
Quote:
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On 2003-05-09 13:35, Al wrote:
One MIDI cannel can not play multiple instrument simultaniously, but you can change an instrument within a sequens by implementing a program change command. The sequense could then for example play a guitar sound first and then change to a piano sound, but the guitar and piano could not play on the same channel at the same time.
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That is what I actullay meant. My point was that one MIDI file can include more than 16 instruments. I wasn't talking about how many of those can be played simultaneously. |
janahan
Joined: Jan 13, 2003
Posts: 232
From: UK
PM |
i Have a p800, T300, Sansung T100, and i have compared it with Nokias poly. Nokia has nice instruments, but let down by the 4 poly on some of the phones. The Samsung T100 has a nice loud sound with bass, but its instrument set is not that "accurate", and its midi processor doesnt seem to cope 100% with GS Midi. The P800 is loud, but not as good as the T100, but slightly better than the Nokia. The T300 has by far the best quality midi of any phone I have heard. Its reproduction is extremely faithfull (I have a Yamaha PSR290 synth, so i know), just a little on the quiet side. I assume the T610 to be at least as good as the T300 in sound quality.
Owned (order of purchase): Nok 8110, Nok 6150, Nok 8210, Nok 6210, Eric r320s, Eric T68m, SE T300, SE P800, SE T610, SE S700i, Mot V3i, SE K800i | |
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Posted: 2003-05-07 19:33
