Issues with HiLook System - Audio Distortion & Poor IR Performance

[catnamedog]

Hi, and thank you for allowing me to join.
I'm currently on my 4th DVR - a Hi-Look DVR-204Q-K1, which is a 4 channel version. I'm using 3 of the 4 channels with a variety of cameras. The main camera has a separate microphone attached to the "sound in" and "sound out" ports using an external amp. The latest camera is a Hi-Look THC-T220-MS 1080P with built-in microphone, and which I intended to replace the main camera in order to (hopefully) improve the recorded sound quality.
I have 2 issues, which I'm hoping you can help me with;
1. The live sound is perfect from both external and in-camera microphones, but the recorded sound sounds as if there is water lapping, and this almost drowns (sic) the recorded voices..
Thinking it might be a HDD problem, I replaced the 1Tb HP HDD with a 250gb SSD thinking it might be some sort of lag problem.

2. Picture quality from all cameras is great during daylight hours. Crisp and clear right up until dusk and the IR kicks in. When that happens, the much-discussed "clouding" occurs. I've tried possibly all the "solutions" , including possible reflections into the lens, and even changed a dome camera for the standard type with a halo of IR LED's around the lens. I have yet to fully test the new camera - the Hi-Look THC-T220-MS 1080P, which has just 2 LED's beneath the lens, which may solve the issue.

Sorry for this long-winded intro, and thanks again.

 

[Phil]

1. If the LIVE sound is OK, then I guess your options are to try the various audio CODEC and other settings that your NVR offers.

2. IR reflection was a big problem with cameras that had the IR LEDs within the dome. Turret cameras became much more popular, as they did not suffer from this. There are specific threads here in the forum that detail the manufacturer's recommendations to minimise IR reflection. Hopefully your newest camera will not suffer from it.

 

[catnamedog]

Hi Phil, and thanks for your reply. I'm not aware that the DVR (Not NVR?) has any CODEC options. If it has, could you please guide me as where they might be accessed? It would appear that sound options are minimal - almost an afterthought - when compared to the many video options there are in the set-up. They amount to "on or off".

 

[Phil]

Sorry, we never get hands-on with the HiLook kit, I just assumed there would be some options