Eternal SPU Plugin v1.40

posted in Utility Release by grammarian on May 26th, 2003

The Eternal SPU Plugin, which adds sound support to PSEmu-compatible PlayStation emulators, has been updated after about a year of inactivity. There are many changes in the latest version, 1.40. Here is the complete list:

The first release with Eternal SPU plugin Linux port.
Additional audio devices are supported. SDL (Simple Direct Media Layer) and WaveMapper are added to Windows port, and SDL and OSS are supported by Linux port.
Additional three reverb algorithms are implemented ("Freeverb", "Iori's" and "Neill's"). Reverb type "Neill's", which is based on the result of analysis by Neill Corlett, must reproduce the most accurate reverb effect of real PSX. Thanks to Neill Corlett.
Pseudo-Noise emulation codes are completely revised. We believe that the noise sound gets nearly perfect.
Accuracy of pitch modulation is improved. Pitch errors in some games are fixed. We also believe that the pitch modulation gets nearly perfect.
Now, decoded result of XA sound can be read-back from sound buffer using DMA. The level meter of "Tales of Destiny" gets working.
Fixed the sound problem with some Konami's games like "Jikkyo Oshaberi Parodius".
Recovery algorithm in buffer overflow for XA stream is changed to get less noisy sound.
The "Record" function is completely replaced. Although the new SPU file format is incompatible with old one, is able to record register read/write, DMA read/write, XA stream and CDDA stream.
"Cache VAG decode" option added. Faster, but less compatibility. We recommend not to enable this option because some of games will make odd tones.
Mixing algorithm for wet component of reverb is changed.
Obsoleted the gray check of "Update before accessing register" option.
SPUasync - Smooth is fixed. Now it can work even with "Update before accessing register" option.
Information for developer of PSX emulator: We added new interface for CDDA stream to improve compatibility. i.e.: void CALLBACK SPUpalyCDDAchannel(short *pcm, int nbytes); This function enables to play CDDA sound through SPU plugin, and DMA read-back of CDDA waveform from SPU sound buffer will get working. Please contact us for more details.

You can grab both ports of the updated plugin from our Plugins for PSEmu page! Thanks to Sefirosu for the news!

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