# No signal going to LFE channel **URL:** \ **Category:** FMOD Studio\ **Created:** [August 26, 2016, 4:57pm UTC](https://qa.fmod.com/t/no-signal-going-to-lfe-channel/12666 "2016-08-26T16:57:19Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![JesseLyon](https://avatars.discourse-cdn.com/v4/letter/j/47e85d/32.png) [@JesseLyon](https://qa.fmod.com/u/JesseLyon)\ **Post date:** [August 26, 2016, 4:57pm UTC](https://qa.fmod.com/t/no-signal-going-to-lfe-channel/12666/1 "2016-08-26T16:57:19Z")
Im having an issue where I cant seem to send any signal to the LFE channel in any event. I seem to recall this being functional a while back, but it has stopped working at some point. My Audio Preferences are set to WASAPI/AES (RME Fireface 802) and “Standard” Metering Channel Order. I have tried other Output Devices and Metering Channel Orders on my setup but still nothing. The LFE is enabled and the volume is up on the LFE channel on the Master track of every event in my project. Oddly, it is working as expected for another audio person in house, his settings are WASAPI/Digidesign 003 Analog 1/2 (Avid 003) and “Positional” Metering Channel Order. Edit: I also just updated from 1.08.04 to 1.08.10, but didnt fix the issue. Any ideas? ---
**Author:** ![JesseLyon](https://avatars.discourse-cdn.com/v4/letter/j/47e85d/32.png) [@JesseLyon](https://qa.fmod.com/u/JesseLyon)\ **Post date:** [August 26, 2016, 6:12pm UTC](https://qa.fmod.com/t/no-signal-going-to-lfe-channel/12666/2 "2016-08-26T18:12:31Z")
> [@](#): > > Im having an issue where I cant seem to send any signal to the LFE channel in any event. I seem to recall this being functional a while back, but it has stopped working at some point. My Audio Preferences are set to WASAPI/AES (RME Fireface 802) and “Standard” Metering Channel Order. > > I have tried other Output Devices and Metering Channel Orders on my setup but still nothing. The LFE is enabled and the volume is up on the LFE channel on the Master track of every event in my project. > > Oddly, it is working as expected for another audio person in house, his settings are WASAPI/Digidesign 003 Analog 1/2 (Avid 003) and “Positional” Metering Channel Order. > > Edit: I also just updated from 1.08.04 to 1.08.10, but didnt fix the issue. > > Any ideas? OK so, for some reason I didnt realize theres an LFE on the 3D panner as well as the master track output. The Master Track LFE defaults on and the 3D panner LFE defaults off. All is well now, but I guess I dont understand why there are two LFE settings. ---
**Author:** ![patrick](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/patrick/32/261_2.png) [@patrick](https://qa.fmod.com/u/patrick)\ **Post date:** [August 29, 2016, 8:18am UTC](https://qa.fmod.com/t/no-signal-going-to-lfe-channel/12666/3 "2016-08-29T08:18:03Z")
Hi Jesse, the LFE setting you’re seeing on the 3D panner is for “LFE upmix”. This determines whether non-LFE source channels should mix to the LFE or leave it alone. This will show up when you have a non-surround signal routed in the 3D panner, allowing you to add in an LFE signal. On the other hand, the LFE button on the surround panner (for a surround input) will allow you to mask away the LFE channel, or scale its value using the gain slider. So basically, the difference between the two that you are seeing is based on whether you want to add in LFE (in the case of going from mono/stereo to surround) or modify the LFE (surround to surround). ---
**Author:** ![JesseLyon](https://avatars.discourse-cdn.com/v4/letter/j/47e85d/32.png) [@JesseLyon](https://qa.fmod.com/u/JesseLyon)\ **Post date:** [August 29, 2016, 4:26pm UTC](https://qa.fmod.com/t/no-signal-going-to-lfe-channel/12666/4 "2016-08-29T16:26:55Z")
> [@](#): > > Hi Jesse, the LFE setting you’re seeing on the 3D panner is for “LFE upmix”. This determines whether non-LFE source channels should mix to the LFE or leave it alone. This will show up when you have a non-surround signal routed in the 3D panner, allowing you to add in an LFE signal. > > On the other hand, the LFE button on the surround panner (for a surround input) will allow you to mask away the LFE channel, or scale its value using the gain slider. > > So basically, the difference between the two that you are seeing is based on whether you want to add in LFE (in the case of going from mono/stereo to surround) or modify the LFE (surround to surround). Ahha, that makes total sense. Thanks for the explanation Patrick! ---
**Author:** ![patrick](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/patrick/32/261_2.png) [@patrick](https://qa.fmod.com/u/patrick)\ **Post date:** [August 31, 2016, 3:33am UTC](https://qa.fmod.com/t/no-signal-going-to-lfe-channel/12666/5 "2016-08-31T03:33:19Z")
Awesome, glad to have helped 🙂 ---
**Author:** ![lucafusi](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/lucafusi/32/681_2.png) [@lucafusi](https://qa.fmod.com/u/lucafusi)\ **Post date:** [January 31, 2023, 1:01am UTC](https://qa.fmod.com/t/no-signal-going-to-lfe-channel/12666/6 "2023-01-31T01:01:36Z")
Hey Patrick, sorry for the deep resurrection here. Is there any way to utilize LFE upmix within the Mixer view, via maybe a panner on a discrete return? I’m trying to simulate a “bass managed stereo” setup in a project that doesn’t have any explicit LFE content yet, as the room I’m in isn’t set up for it and therefore not at all representative of lower frequencies. All my explorations into the panner on a mixer strip don’t seem to allow for any LFE upmixing. ---
**Author:** ![joseph](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/joseph/32/264_2.png) [@joseph](https://qa.fmod.com/u/joseph)\ **Post date:** [February 2, 2023, 3:24am UTC](https://qa.fmod.com/t/no-signal-going-to-lfe-channel/12666/7 "2023-02-02T03:24:23Z")
> [@lucafusi](#): > > All my explorations into the panner on a mixer strip don’t seem to allow for any LFE upmixing. As Patrick alluded seven years ago, LFE upmix is a feature of the spatializer effect, and is not found on the surround panner widget; and the spatializer effect can only be used in events. That being said, it is possible to send a mixed signal to the LFE channel in the mixer by using an FMOD Channelmix effect. Setting this effect to the “LFE” grouping causes every channel’s signal to be mixed and sent to the LFE channel; while this does render the other channels silent, that can be fixed by using sends and return buses to create a duplicate of the original signal.