I've been googling a lot on audio for the Wireless Pro/Wireless Go 2 systems. I have both, but since upgrading to the Wireless Pro set I can't seem to get the audio levels correct for my video content. It seems that no matter the settings of the mic/camera when I export the audio and drag it onto my timelines, it is extremely low. I have to amplify it by +20 or so for it to be usable... I have ran tests but no matter what it ends up the same once I drag it onto the timeline in PP or Audition. Luckily the quality of the mic is still pretty good and the audio is still usable after I do a little noise reduction to clean it up. But it's still a pain, because inceasing the gain that much obviously increases the noise floor and creates noticeable unwanted hiss. Not enjoying this workflow and wondering why in the world it's importing so low.
It seems like you're recording at way too low levels. The Rode Wireless GO II Pros allow for 32 bit float recording. This basically means you almost cannot record beyond clipping levels. If you set this device then to -12dB, you are effectively capping it off at the knee. Set the mic to 0dB and see how it then comes out.
This confused the heck out of me regarding my brand new Wireless Pro audio recordings stored on the transmitter - no matter what gain adjustments I made to the transmitter using Rode Central it remained about -35db. The only exception is when I held the transmitter ridiculously close to my mouth and I managed to get it "up to" -25db. After several calls and emails to Rode Support the answer turned out to be that those gain adjustments are ONLY designed to change if you have the transmitter connected via the 3.5mm mini plug - if you use USB-C connection it doesn't react OR no connection at all. It's not a disaster since the recordings stored on the transmitter use 32 bit float technology and if you export them that way off the transmitter (and often even if you don't) in post you can raise them to basically anything you want without distortion
For my test, thus far, I've attached a lav mic directly to the transmitter. I've tried Gain Assisst set to Auto, Dynamic and Off. I've set the manual gain to 0 and to -32. I've exported the audio from the transmitter and dragged it off, from folder to folder. All of these settings yield the same result, very low audio levels. Premiere is not the issue. The levels are clearly low when I play the file in various audio/video players on my PC.
Steve360377894aq2, I'm confused by your comment, " in post you can raise them to basically anything you want without distortion." Distortion isn't a concern when you raise low levels, a loud sound floor is the concern. The 32 bit float is to protect your recording from clipping, due to very loud sounds.
OK I will take that note but the bottom line here is you can raise your audio gain levels in your editing program and still have great sounding audio - it's interesting to me that Rode opted to lock in such a low db level, i've asked them to send me whatever documentation they have related to this issue, we'll see if I get anything from them to help me better understand the logic and practicalities
For context, I'm basically a one-man-band production house for a state government department. I've used Sennheiser wireless mics on Sony camcorders for most of my career (about 30 yrs - 10 of those in TV news). I just started testing the Wireless Pro. It has some clear advantages. To be clear, I'm not an audio expert. When you wear so may hats in the process, you learn enough in each catagory to do the entire job. I'm more of a photographer/editor/writer/director than an audio guy. My current, specific interest in understanding 32 bit float, has to do with the fact that the levels are low when I bring it into Premiere. All the not-clipping stuff is great, to be sure, but I've been concerned about bringing up those low levels in post, and how that will affect the noise floor. I did some further online research after you replied. I think bringing up the audio in post will be fine and I'm sharing this, with this context, hoping this part of the discussion will be helpful to people who work the way I do. Here is one quote and a link to that forum discussion, as well as a Wired article about 32 bit float in general.
"Signals that are recorded too low can be amplified to a usable level without pulling up the noise floor as well (which is -758 dB in 32-bit float, with another 770 dB above the nominal 0 dB point). In the video, Judd boosts an extremely weak section of the signal by a whopping +98 dB and still ends up with a perfectly usably low noise floor. This is simply not achievable with 24-bit or 16-bit fixed point."
But her comments in the video confused me. I have a 3W amplifier on my boards. And I would in no way refer to it as "loud". More like "any quieter than this and I might as well not bother, so why the hell is almost every speaker 8 ohms?"
My understanding of how amplifiers work is this... Assuming I have the input set up properly, if I input +2.5V then the amp outputs 5V. Into a 4 ohm speaker that gives me 2-3W. I'm not sure of the exact amount. Furthermore, my DAC will output 2.5v if the sample I input to it is at the maximum value.
Given this.... assuming I am inputting audio data where the volume has already been maxed out... By maximizing the peaks, and possibly applying some compression... What would a 24DB do for me except to create horrible clipping on my output? I'm not even sure what 24B boost means in terms of how much the voltage is increased, but since the amp would be limited to a 5V output, a boost to the input when the input is already telling it to go to 5V is not desirable. Cause then when you're telling it to go to 2.5v it's going to boost that as high as it can go as well and that's where your clipping comes from.
So am I missing something here? Am I right that this boost is only useful if the input voltage is low, due to how the dac or input to the amp is configured or due to the sound file itself? Cause if so I don't see how that translates to a measly 3W amp hurting your ears. Unless maybe she's talking about if you're wearing headphones?
The gain setting of a given amp stage is designed and established knowing the maximum audio input voltage and knowing the load impedance of the speaker. Vcc does set a limit of how much audio power can be supplied to a given speaker impedance. Of course also the speaker's power rating (wattage) should to be able to handle the designed maximum gain/power of the amp.
That's coming out with 10% THD, so it's intended for portable systems with maximum efficency and minimum space count. The deal here is to amplify current to drive a low impedance load, cause basic arduino stuff can deliver 5V voltage with poor current capability.
If you want to calibrate your interface in order to mimic the input gain our engineers use when creating and testing the plugins, I would advise you to feed a sine waveform 1 Vp = 0.707 VRMS = -0.79 dBu to the interface and set the interface gain to such level that the DAW peak meter shows -13 dBFS. Feeding a sine waveform on different interfaces will result in different values (again, this is the reason why we cannot provide a concrete value). Check these examples of feeding a sine waveform 1 Vp:
However, I have to tell you that can be achieved by connecting your guitar to the Hi-Z input of a UAD interface with the gain at minimum (to ease the pain of doing that with all your interfaces and electric guitar combinations). If your interface features a Hi-Z input, leaving the gain input by default (minimum) is more than enough. Add input gain if one of your guitars lacks output level (as our support team suggested, increase it as much as you can without clipping).
The configuration I am using allows me to enter the quad cortex with the instrument from input 1. To be able to insert a series of effects exit with the USB 3 of the quad cortex and enter the input of a plugin from the plugin I exit and enter the cortex again with the USB 5/6 at this point I exit the Cortex again and enter a Motu M2 sound card
So, at minimum gain, you have 12.5dBu of headroom. NDSP is calibrated for 12.2dBu of headroom, so in theory boosting by 0.3dB will give the optimal level. Are you sure your input is set to instrument level and not line level? Line level will yield a signal that is too low, and itll also make the pickups sound weak as the impedance is very low for pickups.
The upcoming General Data Protection Regulation of the European Community has some dire consequences for web site admins. Due to the uncertain legal status of the Disqus comment system I use on this site, I have decided to disable comments for now. I hope this will be only a temporary measure and I can reenable them sometime in the future.
One thing that I found missing compared to the X32 is the ability to record 2 channels directly to a usb stick. Therefore I thought about possible ways to work around this missing feature. In the end I settled on a Raspberry Pi 3 which is running the audio player distribution moode audio and is connected via USB to the XR18. With a small bash script it is possible to create an automatic recorder that will record mp3 files whenever audio is playing on the XR18.
I am using a Behringer X32 digital mixing desk both when mixing other bands and mixing my own band while performing at the same time on stage. In the latter case I always struggle to turn the vocal reverb on and off in time when a song starts or ends. When I was using an analog mixing console, I had the option to attach a footswitch to toggle this effect on and off. On the X32 this is not possible but it is possible to remote control the desk via MIDI commands. So I decided to build a footswitch controller that will send MIDI commands to the X32.
The iPhone does not support the IMAP Idle protocol to receive push notifications for new emails. Fortunately the open source project Z-Push implements the ActiveSync protocol which can be also used by iOS to receive push email notifications.
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