#Kantoplayer sound playback crackles full#
#Kantoplayer sound playback crackles windows#

This may be easier said than done, especially if your speakers are built into your monitor. If the crackling occurs with your speakers, try swapping them out with a spare pair. In this case, you should have it inspected by a technician. If the problem disappears after switching headphones, the original headphones are at fault. Test A Different Audio Device on the Same Computer: If you have a spare pair of headphones, connect them and see if the crackling persists.Plugging another headphone into the same port of the same machine that is causing your audio to crackle will confirm this. If the device works without crackling on another computer, your computer's port is the problem. Consider plugging your device into another port on the same computer or into a different machine (if possible). Test Your Hardware With Other Devices: Besides checking for physical damage, input ports are another possible culprit.If possible, reconnect it to eliminate the chance of interference causing audio crackling. If you're connecting a wireless device, make sure it's connected properly. Inspect Your Hardware: Check your output device, and the connection leads for possible partial breakage that may reveal the fault causing the audio crackling.If the crackling doesn't go away and there doesn't seem to be any damage on the hardware, move on to the next steps. If your device starts working again after replugging, you should check your audio jack for corrosion, blockage, and wear. Unplug and Replug the Crackling Device: Unplugging and replugging your device can eliminate the possibility of temporary failure caused by one-time interference.Preliminary Fixesīefore you start tinkering with your system, it's a good idea to run some preliminary checks to rule out some fundamental hardware issues.

#Kantoplayer sound playback crackles windows#

I don't know how and if the emulator or FFmpeg handle this, but it's a major thing to keep in mind for the decoder.To fix the audio crackling issue on Windows 10, perform the following fixes: 1. at9 using MediaInfo gave me the conclusion that a lot of the files aren't mono but joint stereo files.

After that, the encoding issues and the playback rate sync could be worked on without having to worry about the hypothetical latency caused by SDL.Īs a side note, inspecting the metadata of several.

#Kantoplayer sound playback crackles full#

Fully implement sceAudio (audio output port module) in order to allow the audio output port created in the host environment to keep up to with the changes requested by the game in order to improve audio playback.ĭue to most of these changes requiring modifications on the audio backend I would suggest to first go with the SDL to PortAudio transition because working on sceAudio before the transition would later require a full re-write of the module implementation which if done afterwards it would only require to re-write the already implemented functions and anything new would already use PortAudio.

Fully implementing the Atrac9 and PCM decoders (after the implementation of libatrac9 has been done?) should improve latency issues as well, specially with the playback rate being ignored which is necessary to sync the output port frequency to the frequency the game is streaming audio at.

FFmpeg Atrac9 decoder has issues and using libatrac9 might make an improvement.

This should be fixed the first, as the crackling issues might be at fault of latency on the audio output rather than from Atrac9 decoding. Libraries like PortAudio should do the job for desktop target platforms while for mobile native audio extensions could be used via C++ (Android NDK) and Swift's interop with C++ (for iOS).

SDL audio has been known for a while to cause several audio latency issues that might eclipse other audio issues and getting rid of it should help to test and refine things on the audio backend.

The HLE audio out module as of today has functions such as sceAudioOutSetConfig and sceAudioOutGetConfig which allow to check and change audio out port configuration while the port is still open unimplemented.

audio latency due to SDL) and NGS rather than with audio decoding. Leaving that aside, I think the crackling on audio has more to do with an issue with the audio stream (ex.

at9 decoding side by side with VGAudio decoder implementation which is based on libatrac9 evidences that FFmpeg has timing issues decoding Atrac9 files as it adds silence both at the beginning and the end of decoded files.Īnd not only that, but seems that invalid data is quite common in Atrac9 audio files, as pointed on a release note from VGAudio and FFmpeg seems to struggle a lot with this.