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DSPHLE: Added an option for 48khz output and supporting upsampling code.

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Games that have higher frequency sounds and music should sound a bit better using 48k. 

I don't have any games that use DTKMusic so that upsampling code untested. If you get strange sounds only at 48k try toggling dtk music to see if that isolates the problem and let me know.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6383 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
mylek4 2010-11-12 03:39:07 +00:00
commit 67f850dd37
9 changed files with 149 additions and 109 deletions
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7
Source/Core/AudioCommon/Src/Mixer.h
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@ -26,7 +26,7 @@
class CMixer {
public:
CMixer(unsigned int AISampleRate = 48000, unsigned int DACSampleRate = 48000)
CMixer(unsigned int AISampleRate = 48000, unsigned int DACSampleRate = 48000, unsigned int BackendSampleRate = 32000)
: m_aiSampleRate(AISampleRate)
, m_dacSampleRate(DACSampleRate)
, m_bits(16)
@ -39,9 +39,8 @@ public:
{
// AyuanX: The internal (Core & DSP) sample rate is fixed at 32KHz
// So when AI/DAC sample rate differs than 32KHz, we have to do re-sampling
// I prefer speed so let's do down-sampling instead of up-sampling
// If you like better sound than speed, feel free to implement the up-sampling code
m_sampleRate = 32000;
m_sampleRate = BackendSampleRate;
INFO_LOG(AUDIO_INTERFACE, "Mixer is initialized (AISampleRate:%i, DACSampleRate:%i)", AISampleRate, DACSampleRate);
}