posted
I thought I saw this mentioned somewhere else, but can't seem to find the thread. I have one of the newer Termlab meters and anytime I put it inside the car for testing it always reads around 106, without any noise inside the vehicle. How can I fix this? I have a show coming up and want to make sure the meter is reading correctly. Is this something thats normal or not?
posted
I had somthin like this. Were it was reading all over the place. Found it to be the cable to be bad.
Posts: 387 | From: NJ | Registered: Oct 2003
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posted
106 might be nothing, my concern is that if the meter is reading 106 when it's clearly not that loud than the meter is not accurate. And if the meter isn't accurate at that low level than who's to say that it's going to be accurate at the 140 or 150 level? The meter is either reading correctly or it's not.
posted
Steve the meter you had at the show seemed to be pretty close if not dead on with our meter... when my vehicle is off I have a "silence" of about 104-105db
-------------------- back in the 50's... Kicker is 'Livin Loud' Marriage soon, new house in the works, new baby, and no money! Posts: 2497 | From: Gardiner Maine 00420ville | Registered: May 2000
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quote:Originally posted by SPL Creator: 106 might be nothing, my concern is that if the meter is reading 106 when it's clearly not that loud than the meter is not accurate. And if the meter isn't accurate at that low level than who's to say that it's going to be accurate at the 140 or 150 level? The meter is either reading correctly or it's not.
no i mean 106db IS total silence basically
There is never a 0 db, with a motor running with my meter in a vehicle it stays around 106/107 db when I turned the min spl down
-------------------- Posts: 6552 | From: Russellville AL | Registered: Nov 2002
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quote:Originally posted by SPL Creator: 106 might be nothing, my concern is that if the meter is reading 106 when it's clearly not that loud than the meter is not accurate. And if the meter isn't accurate at that low level than who's to say that it's going to be accurate at the 140 or 150 level? The meter is either reading correctly or it's not.
no i mean 106db IS total silence basically
There is never a 0 db, with a motor running with my meter in a vehicle it stays around 106/107 db when I turned the min spl down
106 db is total silence? wtf have you been taking? you know a garbage truck is like 80-90 db right? total silence is like 45-55db. Obviously the mic is innacurate at lower levels *probably below 120db* Mines had the same problem and every termlab I had, had it.
Posts: 4890 | From: 2130 | Registered: Jan 2006
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posted
When the meter is delivered, the minimum SPL setting is set to 120 dB. Whenever a reading is less than 120 dB, the meter will automatically "mute" the score and display 0.0 dB.
Term-LAB was never intended to measure low sound pressure levels. When you reduce the Minimum SPL value to something lower than 120, you will see the noise "floor" of the system. (The 106 dB is not a real SPL measurement.)
-------------------- "Keep it Loud and Make me Proud!"
quote:Originally posted by SPL Creator: 106 might be nothing, my concern is that if the meter is reading 106 when it's clearly not that loud than the meter is not accurate. And if the meter isn't accurate at that low level than who's to say that it's going to be accurate at the 140 or 150 level? The meter is either reading correctly or it's not.
no i mean 106db IS total silence basically
There is never a 0 db, with a motor running with my meter in a vehicle it stays around 106/107 db when I turned the min spl down
106 db is total silence? wtf have you been taking? you know a garbage truck is like 80-90 db right? total silence is like 45-55db. Obviously the mic is innacurate at lower levels *probably below 120db* Mines had the same problem and every termlab I had, had it.
you know what i mean...not total deafness/silence.
I mean its the quietest you are going to get in a vehicle. There is ambient noise...motor running engine noise, a truck going down the road.
Its going to read something over 100 db if there is some sort of activity going on around the mic
-------------------- Posts: 6552 | From: Russellville AL | Registered: Nov 2002
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posted
I am having the same problem with my TL. Reading everybody else’s posts it seems like a common problem. My meter set at 120 does not mute. As soon as I hit the start button I am getting a 115.0 reading then it drops down in the 106 to 109 range. Reading what Wayne posted and what I am gathering from that is the meter is designed to read accurately from 120.0 to 183.0 is that correct?
Posts: 1 | From: Bend, Oregon | Registered: Jul 2008
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quote:Originally posted by SPL Creator: I thought I saw this mentioned somewhere else, but can't seem to find the thread. I have one of the newer Termlab meters and anytime I put it inside the car for testing it always reads around 106, without any noise inside the vehicle. How can I fix this? I have a show coming up and want to make sure the meter is reading correctly. Is this something thats normal or not?
Steve that is fine some meters will read between 104 to 106 . david mcleans metter reads 104.7 when i am in the lanes ,The 2 may never read the same They could be like 104.7 in lane one and 105 in lane to . It really is nothing to worry about.
-------------------- TEAM PINNACLE TEAM SOUTHEASTSPL Personal goal is to hit 160 db's with only 2 amps Florida state finals 2nd place scored 158.1 certified ranked #23 in the world www.caraudiosales.freeforums.org Posts: 2322 | From: GRN CVE SPRGS | Registered: Oct 2004
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posted
This is not a problem. With no sound at all, the system will display 100-110 dB (if you change the Min SPL setting to disable the "mute" feature.) In fact, you may see this reading even if the sensor(s) is unplugged. This is by design. It has to do with the signal-to-noise ratio of the system.
Normally, you should not change the Min SPL setting. To restore this setting, do the following...
1. Select "Tools / Hardware Configuration" from the Term-LAB pull-down menu. 2. Click on the "Edit" button next to the sensor you wish to configure on the "Input Devices" page. 3. Verify that the "Min SPL" value is 120. 4. Click "Save".
-------------------- "Keep it Loud and Make me Proud!"
posted
My Minimum SPL was lowered to accommodate Bass Race. I had confusion with competitors who got a slow start in Bass Race not seeing a score until they were above 120 dB. This would cause the competitor to assume the meter was not reading, and expect a retry.
quote:Originally posted by Wayne Harris: This is not a problem. With no sound at all, the system will display 100-110 dB (if you change the Min SPL setting to disable the "mute" feature.) In fact, you may see this reading even if the sensor(s) is unplugged. This is by design. It has to do with the signal-to-noise ratio of the system.
Normally, you should not change the Min SPL setting. To restore this setting, do the following...
1. Select "Tools / Hardware Configuration" from the Term-LAB pull-down menu. 2. Click on the "Edit" button next to the sensor you wish to configure on the "Input Devices" page. 3. Verify that the "Min SPL" value is 120. 4. Click "Save".
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