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PSG AY-3-891x/YM2149 (CPC, ST, ZX)Xmas Mix by flag mirrorbird (P.)
Requested By: flagarrakis

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Nectarine

Song Information

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Compowinner Datastorm technically-awesome

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SID (6581/8580)Monophono

Author: flag Mahoney (Pex Tufvesson) GroupVisa Röster

Uploaded By: flagfranz_opa

Song Length: 4:25
Release Year: 2013
Song Status: Active *
Song Bitrate: 128 kbps
Song Legacy Flag: R
Song Source: Compo Entry
Song Platform: PlatformSID (6581/8580)


Additional Information:

#1 at Datastorm 2013 music compo

Last Queued : 4 days, 18 hours ago

This song has been played 61 times. [See Request History]
It was added 10 years ago.

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Song Rating

Song Rating: 4 - Votes Placed: 44 View Voting History
A total of 10 users have this song on their favourites list.

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User Comments

User Song Comment
flagfranz_opa
avatar
Steadily at the low level

sidplayer 2.0 & VLC both failed to play this file
9 years, 10 months ago
flagjakov

Great.
9 years, 9 months ago
flagcodehead

franz_koopa, that's because this is too awesome for emus.
9 years, 8 months ago
flagMyO
avatar
.еру .зкщпкфь .цшдд .ьфлу .нщг .рфззн

HO WHAT HOW IS THAT A SID.
7 years, 8 months ago
flagMyO
avatar
.еру .зкщпкфь .цшдд .ьфлу .нщг .рфззн

From Rolf Bakke's Youtube video:


I recently learned that proper 8-bit sample playback is possible on the C64. It is done as follows:

-set and then clear the test bit, this clears the phase accumulator.
-Put your 8 bit value into the high byte of the frequency register, this makes the accumulator increase with a rate proportional with the value of your 8 bit value.
-wait a constant time.
-Clear frequency register, this stops the oscillator. Now the value of the accumulator is proportional to the 8 bit value.
-Select the saw tooth waveform, now the upper 12 bits of the 24 bit accumulator is connected to the 12 D/A converter and output as an analog voltage proportional to the 8 bit value. -Disable waveform, now the D/A converter is disconnected and its 12 bit input is left open. Due to capacitance in the input stage of the D/A converter the 12 bit value persist for at least a second, so the output voltage will hold until the input is changed again.
-repeat with next sample.

When I faded away from the C64 scene I thought everything possible was done.

I am well and truly flabbergasted!

https://www.youtube.com/watch?v=https://www.youtube.com/watch?v=p6LYrQk5I7s
6 years, 10 months ago
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