toreomega.blogg.se - Speaker hiss

#Speaker hiss how to
#Speaker hiss drivers
#Speaker hiss software

I was testing using sonic pi on a model 2, and closing sonic pi stopped the hiss made it much quieter.

#Speaker hiss software

Closing the software used to play the samples.

There are a few things you can try (some of which you may have tried already of course). I suspect the amp is still on after playing the first audio file. Tried using a Tendak HDMI to VGA for the sound ( ) thinking that we'd have more like that way, but the issue still persists. I have having no popping sounds whatsoever and using a USB card has not fixed this issue for me. My issue is that after any audio is played on the Pi whatsoever there is henceforth a hissing sound from the speakers until the Pi is restarted.

#Speaker hiss how to

My question differs from the question asked here How to get better Audio quality from audio jack output, because this question talks about issues with popping noises between songs. What could be happening from when I bootup to when I play the first bit of sound and how can I stop the hiss after the first play again? I tested to make sure it was enabled by running: # vcgencmd get_config disable_audio_dither I have set disable_audio_dither=1 in the /boot/config.txt, however it doesn't fix this issue. Speakers hiss regardless of PCM being "muted" (using alsamixesr) or having a any kind of volume.Play a sound byte through the Pi (using ALSA).Boot up the Pi, everything sounds great.I already have to much gear I don't use.I'm having the following issues with my amp on the Raspberry Pi 2, Model B.

#Speaker hiss drivers

So could this be a problem with the gains being set wrong or is it more likely an issue of aging electrolytic caps? Or could it be just a cheap noisy design that Kenwood didn't put much effort into? In a couple of days I will be pulling it out of my system and packing the drivers away until the final boxes are built and likely will never use the amp again but If I can fix it I figure it could be a good learning experience and I might just fix it for that reason but in the end it will likely be going back to Good Will and some one else can have it.

It's coming out of both the mid and the tweeter. There is no way to adjust the gains from the out side of the amp but there is a bass volume pot on the rear of the amp that I guess could be technically considered a gain adjustment but it is only on one channel and the hiss is in stereo. I picked it up from Good Will and it's the first time that I have actually used it even though I've had it for some time. This amp was intended to add a center channel and a passive sub to the receiver. It's not being used right now but it has been a surprisingly good bit of kit. I do have the matching receiver and I have to say it is dead silent though. This is not really one of Kenwood's better amps. I will try shorting inputs and see what happens but I already know it is the amp that has the problem as I am very familiar with the rest of the system and it's all good. I will start a build thread when I get around to putting it all together. I might need some assistance with that project when I start putting it all together. I have one of their 1500s PSU's and 4 of their 400A amp modules coming that I will be assembling once I get them into a chassis that I should also be receiving in a few days that I ordered here at the diyaudio shop. I'm waiting on my order from Icepower right now.

These are not the final amps I will be using in the end only what I'm testing the speaker with in a test box. I have another stereo Sonance amp running right next to it and it runs completely silent. The amp is a stereo amp not a receiver and I'm using a Dayton Audio DSP for a cross over connected to my computer as a preamp/source. Either the active crossover is quite noisy or the amplifier has too much gain. If the hiss goes away then the problem is with the combination of the amplifier and the active crossover. Shorting the inputs means connecting the middle pin of an RCA/phono connector to the grip/outside of the connector. Time is unlikely to solve this problem, but as rayma says, short the inputs of the amplifier and see if the noise is still there. This noise will get amplified by the amplifiers gain and then sent to the speakers. The amplifier obviously provides gain and the active crossover will also have a certain level of noise. It isn't just the amplifier though it's whatever is before it too. The higher the sensitivity of the tweeter the more audible the intrinsic noise of the amplifier will be. In an active speaker system there is no passive attenuation applied to the tweeter so a low noise amplifier is even more critical. Amplifiers produce a certain amount of noise as part of their design and relates to the laws of physics and the gain structure of the amplifier.