| カテゴリ | 重要度 | ステータス | 解決状況 | 登録日時 | 最終更新 |
|---|---|---|---|---|---|
 サウンド | 低 | 解決済み | 修正済み | 2014-12-17 10:39 | 2021-03-24 03:04 |
| テスター | enik | 担当者 | aaron | ソース | sega/mdconsole.cpp |
| バージョン | 0.156 | 発生バージョン | 修正バージョン | 0.230 | |
| 修正コミット | プルリク | ||||
| フラグ | |||||
| セット | genesis / megadriv / megadrij [microm96] [microm96a] [micromm] | ||||
| セット詳細 | |||||
| 概 要 | Micro Machines Turbo Tournament '96のクラクション音が間違っている。 | ||||
| 詳 細 | The horn sound in Micro Machines Turbo Tournament '96 is incorrect/muffled. | ||||
| 再現手順 | MAME/MESS developer R. Belmont describes it: "It plays "beep-beep" at the end of the intro (around the 10 second mark in ) and in-game one of the controller buttons does it." (pressing C on gameplay) | ||||
| 追加情報 | I found a fix for the MESS genesis/megadrive driver, by changing the rate value that is set in file 2612intf.c, function ym2612_device::device_start(). Rate was set with "clock()/72" and to fix the problem I just doubled the value of the divider ("clock()/144"), after tests with different values. I don't know exactly why the 72 divider was used and why 144 is required to fix the problem, but after seen the sound_init() function of Genplus-GX SVN rev. 707 (sound.c file), I found there that 144 was used as a multipler when HQ mode of YM2612 is enabled, while 72 was used for HQ mode of the YM2413 chip. The values were used by Genplus-GX until SVN rev. 781, when some structural changes were made to files ym2612.c and sound.c, better described by this line of ym2612.c: - removed input clock / output samplerate frequency ratio, chip now always run at (original) internal sample frequency Those changes don't seem trivial to port to MAME/MESS. The rate parameter, that needed to be changed, isn't used anymore by Genplus-GX. | ||||
| 添付ファイル | |||||