[linux-audio-dev] Linux kernel HZ, audio latency and how to measure?

2006-08-18 Thread Mulyadi Santosa
Hello everyone I am kinda interested to study the effect of changing kernel HZ (internal timer frequency) and the audio processing. Since I am a newbie in Linux Audio, I will be glad to receive any comments, especially the constructive ones. Is there any relationship between kernel HZ and

Re: Re: [linux-audio-dev] Linux kernel HZ, audio latency and how to measure?

2006-08-18 Thread Mulyadi Santosa
Hello... > > recording audio doesn't involve using the system timer at all. the > > only clock involved is the sample clock that drives the audio > > interface. I see. I took a wrong conclusion then > > having HZ set too high could conceivably make the system more > > likely to xrun, but thi

Re: Re: [linux-audio-dev] Linux kernel HZ, audio latency and how to measure?

2006-08-18 Thread Mulyadi Santosa
Hello... > Ah, interesting. Thanks. > I feel like I should have known that. I'm going to go read up on > audio drivers now.. I also thank everyone who had given their thoughts and opinion. At least you gave me clue on what is really going on in some audio applications. I'll dig more about MIDI

[linux-audio-dev] MIDI is playing but no sound

2006-10-23 Thread Mulyadi Santosa
Hello everybody Perhaps not directly related with audio development, but I will be glad if someone can help me. I downloaded a free MIDI file from Internet (drum sample MIDI from "MIDI" wikipedia entry) and I tried to play it on my FC5. I am using both aplaymidi and KMid, but no sound comes ou

Re: [linux-audio-dev] MIDI is playing but no sound

2006-10-24 Thread Mulyadi Santosa
Hi > Kmid and aplaymidi just read a midi file and send it to an output. If > a synthesizer is connected to that output, or if this output > correspond to timidity++ running as a server or to the synth of a > sound card like a live or an audigy, you will hear the music. Thanks a lot, it works

[linux-audio-dev] about MIDI timing...

2006-10-25 Thread Mulyadi Santosa
Hello list... I am curious to research further about MIDI timing and here is something I want to ask... I wonder, if we missed the (MIDI?) event a bit (perhaps 1 miliseconds?), what would happen? I guess it will be underrun? Or technically, do we determine a playback as "choppy" by calculating