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New Sound Devices recorders!
Old 1 week ago
  #181
TJP
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The MP6 has 76 dB of Gain! Should be fine. And from what i can see in the tech. specs the diff. in therms of equivalent input noise is +/- 2 dBUFS. Don´t think that this is audible.... but i haven't done a comparison.
Old 1 week ago
  #182
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Originally Posted by TJP View Post
The MP6 has 76 dB of Gain! Should be fine. And from what i can see in the tech. specs the diff. in therms of equivalent input noise is +/- 2 dBUFS. Don´t think that this is audible.... but i haven't done a comparison.
What weighting are your ears calibrated to: A or C ? I guess it depends which country you live in....so many standards, so little time
Old 1 week ago
  #183
TJP
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The results are a-weighted right? That means it is suited to describe noise floor in relation to quite sources. If there is a difference between 2 dBUFS converter wise, i really don´t think you can hear it. But correct me if i wrong.
Old 1 week ago
  #184
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Quote:
Originally Posted by TJP View Post
The results are a-weighted right? That means it is suited to describe noise floor in relation to quite sources. If there is a difference between 2 dBUFS converter wise, i really don´t think you can hear it. But correct me if i wrong.
2dB "UFS" doesn't make any sense. Either it's 2dBu or it's 2dBFs. Or it's a typo and you're talking about 2 LUFS?

That said 2dB of difference relating to the same reference level and weighting does make sense to compare.
Old 1 week ago
  #185
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Quote:
Originally Posted by Gusss View Post
According to the specs this has higher input noise but greater dynamic range than the 702T - so which would be better for wildlife recording ?
The one that you have with you!

(Seriously, those specs are practically identical. Why would you need 120dB of dynamic range in the wild anyway unless you want to record a volcano eruption from start to end without any limiting and you're able to play that back on your speakers at original volume. Otherwise: Go out and record, instead of worrying about specs. These are both top notch machines for what you want to do, the MP however is MUCH cheaper. On the other hand the 702 is easier to power from professional batteries that last forever and the 702T has a TC generator. In terms of audio specs you can't go wrong with either machine. It's more about ergonomics and features)
Old 1 week ago
  #186
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Originally Posted by apple-q View Post
The one that you have with you!

(Seriously, those specs are practically identical. Why would you need 120dB of dynamic range in the wild anyway unless you want to record a volcano eruption from start to end without any limiting and you're able to play that back on your speakers at original volume. Otherwise: Go out and record, instead of worrying about specs. These are both top notch machines for what you want to do, the MP however is MUCH cheaper)
Hhaha good answer. I guess the reason I ask is I do a lot of sound design that involved boosting very quiet sounds to very loud volumes which can make preamp noise noticable . I do a lot of recording in the amazon rainforest and have an interest in recording and then slowing down ultrasonic sounds where preamp noise may be more noticeable (thye can be very quiet and there aint a lot of natural background noise up there - so preamp noise is more relavant) - which is why I think I prefer the 702T as it has a higher sample rate.
Theres research machines - but I prefer something that can be used for general use as well.
Old 1 week ago
  #187
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Quote:
Originally Posted by Gusss View Post
Hhaha good answer. I guess the reason I ask is I do a lot of sound design that involved boosting very quiet sounds to very loud volumes which can make preamp noise noticable . I do a lot of recording in the amazon rainforest and have an interest in recording and then slowing down ultrasonic sounds where preamp noise may be more noticeable (thye can be very quiet and there aint a lot of natural background noise up there - so preamp noise is more relavant) - which is why I think I prefer the 702T as it has a higher sample rate.
Theres research machines - but I prefer something that can be used for general use as well.
The MixPre-6 records at 24/192 and has a published frequency response of 10Hz to 80kHz at that sample rate.

I would imagine that would be suitable for recording and slowing down ultrasonic sounds.

Which software do you use for slowing down your recordings?
Old 1 week ago
  #188
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Originally Posted by dogmusic View Post
The MixPre-6 records at 24/192 and has a published frequency response of 10Hz to 80kHz at that sample rate.

I would imagine that would be suitable for recording and slowing down ultrasonic sounds.

Which software do you use for slowing down your recordings?
Thats odd - with Niquist you'd expect it to be 96 khz - I guess thats just the +/- 1db. Do you happen to know what this spec is given for the 702 ? I couldnt see it. I use lots and lots of different software to slow sounds down everything from , dont laugh , FLstudio which Ive actually found to be a really useful sound design tool - to programs like MaxMSP. I find Izotope RX5 amazingly useful for seeing and identifying potentially interesting sounds in the ultrasonic range visually - you can slow things down/pitchshift in it too. I also use a few plugins like Pitchwheel from Quikquak.

Last edited by Gusss; 1 week ago at 06:20 PM..
Old 1 week ago
  #189
Gear Head
 

Quote:
Originally Posted by Gusss View Post
Do you happen to know what this spec is given for the 702 ?
10 Hz–40 kHz, +0.1, -0.5 (gain controls centered), Fs 96 kHz

I don't know if the 40 kHz would be doubled at 192 kHz sample rate. If so, the 702T would be as useful and perhaps quieter than the MP6.

Thanks for the software info.
Old 1 week ago
  #190
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Quote:
Originally Posted by pauljisaacs View Post
702 line out into the MixPre-6 Aux In 1/8" (set to line) will be absolutely fine. Line out to line in adds negligible noise since not much if any amplification is necessary.
True, but note that the 702 line out isn't a direct analogue out from the source. It will have passed through the 702 digital conversion (A->D then D->A) so you've introduced an extra layer of conversion (and a wee bit of delay).
Old 1 week ago
  #191
I just got my Mixpre-6 yesterday in time for an audition recording. Decided to use it. So far so good. It is small, but solid. Heavy as a brick. All the buttons have a satisfying heft to them. The screen is very bright, the glowing knobs are hypnotic, and the navigation easy enough to use without having to search the manual. 15 minutes of tinkering and I was able to get the gist of most of the features and options. Headphone mixes and playback are not quite self explanatory though, and will take some reading or some fiddling to understand. I tried powering it via 4 AA's which do not last long and a large USB C power pack which should last for many many hours.

The sound quality is as good as expected. The Wingman app has also just been released for Android also.
Old 6 days ago
  #192
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Quote:
Originally Posted by elswhrco View Post
True, but note that the 702 line out isn't a direct analogue out from the source. It will have passed through the 702 digital conversion (A->D then D->A) so you've introduced an extra layer of conversion (and a wee bit of delay).
I was responding to Don S's question of whether the 702 line out could be used with the 1/8" Aux In. It can and with great success. Re AD->DA path, the 702 and MixPre wide dynamic range, low latency converters are more than good enough that most would struggle to hear any effects of conversion in this setup.
Old 6 days ago
  #193
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Quote:
Originally Posted by pauljisaacs View Post
I was responding to Don S's question of whether the 702 line out could be used with the 1/8" Aux In. It can and with great success. Re AD->DA path, the 702 and MixPre wide dynamic range, low latency converters are more than good enough that most would struggle to hear any effects of conversion in this setup.
Many thanks! I guess there is no way to know how well this would work other than trying it and hear the amount of added noise from the additional conversion stage.
Old 5 days ago
  #194
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Quote:
Originally Posted by Don S View Post
Many thanks! I guess there is no way to know how well this would work other than trying it and hear the amount of added noise from the additional conversion stage.
Again, I have to say I'm confused why this is such a big deal. The 702 is clearly not the correct tool for the job you are trying to do. It is a recorder, not a mixer, and not an external preamp. It's primary purpose is to record pristine signal, not to pass that signal to other pieces of equipment.

That said, the 702 is an excellently designed piece of gear and therefore you have been given several ways you could use it to accomplish your your goals. Will it be an ideal signal path? No, but the 702 is not designed for that. If you're really so worried about the negligible noise from unbalanced outputs or another conversion stage I'd suggest you invest in a piece of equipment that actually is designed to do what you are trying to do.

-Mike
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