Manticore depth audio theme

[gismapper]

Hey manticore experts...
I remember seeing some posts on here about people using the depth audio theme and saying that it really helped them look for deep silver by making deeper targets stand out.

Maybe I'm just not that intelligent, but every time I try the depth audio theme, all I hear is squeaking. Nobody (that I've seen) has actually explained what about depth audio makes deeper targets stand out.

Is it the pitch? The volume? The tone quality? Something else? If anyone can point me to a thread or a video that explains it (and demonstrates it), I would truly appreciate it. Because I feel like I'm just not getting it.

I was at a site today and had a deep can slaw signal which was two feet away from a foil gum wrapper, which I could see on the surface. I figured it was a good opportunity to try depth audio again. I heard no difference between them. One was on the surface, the other showed 4 bars down on the screen. The audio sounded the same in pitch and volume (the foil was wadded up). I tried fiddling with the specific settings for depth audio, but I didn't understand what i was doing. I just hoped something would make them sound different, but nothing did.

I tried searching on here but I couldn't find any threads that went into that kind of detail.

Who uses depth audio to make deep targets stand out? Or does it not do what I think it does?

Thanks!

 

[Rattlehead]

The Depth Audio Theme is VCO which means Voltage Controlled Oscillator. With this type of audio, the closer the target is to the coil, the higher the pitch. So to hone in on those deep targets, all you need to do is listen for those tight, lower pitched tones. To me, this makes spotting deep targets much easier than just using modulation. I use the Depth Theme almost exclusively on the Manticore and Pitch Tones on the Deus 2 which works the same way. Takes a little getting used to, but once you get comfortable with it, it’s awesome. The Depth Theme is also very nuanced, allowing you to easily judge size, and tell the difference between round targets vs misshapen ones.

Do this: lay a coin on a board and sweep it with the coil close to the target.. Listen to the pitch. Now raise it a couple of inches at a time, noting the difference in pitch. Make a mental note of how those lower pitch tones sound and listen for those in the wild.

 

[Rattlehead]

BTW, target size also affects the pitch. A larger deep target can sound similar to a shallow smaller target.

 

[gismapper]

The Depth Audio Theme is VCO which means Voltage Controlled Oscillator. With this type of audio, the closer the target is to the coil, the higher the pitch. So to hone in on those deep targets, all you need to do is listen for those tight, lower pitched tones. To me, this makes spotting deep targets much easier than just using modulation. I use the Depth Theme almost exclusively on the Manticore and Pitch Tones on the Deus 2 which works the same way. Takes a little getting used to, but once you get comfortable with it, it’s awesome. The Depth Theme is also very nuanced, allowing you to easily judge size, and tell the difference between round targets vs misshapen ones.

Do this: lay a coin on a board and sweep it with the coil close to the target.. Listen to the pitch. Now raise it a couple of inches at a time, noting the difference in pitch. Make a mental note of how those lower pitch tones sound and listen for those in the wild.

OK...that helps a TON! Thank you so much! I will definitely try what you suggested. I was hoping for a way to invert that effect. Deeper targets would stand out better to me if *they* rose in pitch. But now that I get the point, I'll try again with that in mind.

 

[MuddyMo]

The Depth Audio Theme is VCO which means Voltage Controlled Oscillator. With this type of audio, the closer the target is to the coil, the higher the pitch. So to hone in on those deep targets, all you need to do is listen for those tight, lower pitched tones. To me, this makes spotting deep targets much easier than just using modulation. I use the Depth Theme almost exclusively on the Manticore and Pitch Tones on the Deus 2 which works the same way. Takes a little getting used to, but once you get comfortable with it, it’s awesome. The Depth Theme is also very nuanced, allowing you to easily judge size, and tell the difference between round targets vs misshapen ones.

Do this: lay a coin on a board and sweep it with the coil close to the target.. Listen to the pitch. Now raise it a couple of inches at a time, noting the difference in pitch. Make a mental note of how those lower pitch tones sound and listen for those in the wild.

Do you any disc with it and if so in what conditions?

 

[Rattlehead]

Do you any disc with it and if so in what conditions?

I do, depending on what and where I’m hunting. Mostly open pattern when hunting in the woods where there’s not a lot of trash. A basic coin pattern with a nickel slot and accepting 43+ for most parks, An even tighter pattern for silver shooting curb strips and similar trashy locations.

 

[gismapper]

The Depth Audio Theme is VCO which means Voltage Controlled Oscillator. With this type of audio, the closer the target is to the coil, the higher the pitch. So to hone in on those deep targets, all you need to do is listen for those tight, lower pitched tones. To me, this makes spotting deep targets much easier than just using modulation. I use the Depth Theme almost exclusively on the Manticore and Pitch Tones on the Deus 2 which works the same way. Takes a little getting used to, but once you get comfortable with it, it’s awesome. The Depth Theme is also very nuanced, allowing you to easily judge size, and tell the difference between round targets vs misshapen ones.

Do this: lay a coin on a board and sweep it with the coil close to the target.. Listen to the pitch. Now raise it a couple of inches at a time, noting the difference in pitch. Make a mental note of how those lower pitch tones sound and listen for those in the wild.

I was busy with my son's birthday yesterday so I didn't get to try this yet but I've been thinking about it. If I edit the tone pitch settings in the depth audio profile, can't I use 1 region all tones and invert the pitch curve so that deep targets have a higher pitch? To me, that seems like the easiest way to get deep targets to stand out. Or am I just out to lunch? I'll definitely get time to try it today but I was wondering if it was a terrible idea for some reason.

 

[Rattlehead]

I was busy with my son's birthday yesterday so I didn't get to try this yet but I've been thinking about it. If I edit the tone pitch settings in the depth audio profile, can't I use 1 region all tones and invert the pitch curve so that deep targets have a higher pitch? To me, that seems like the easiest way to get deep targets to stand out. Or am I just out to lunch? I'll definitely get time to try it today but I was wondering if it was a terrible idea for some reason.

I agree, it would be a cool feature, but unfortunately it's not possible. The depth theme is strictly VCO. When running the Normal Theme (All Tones), the pitch is based off of conductivity, not depth.

 

[mascard1]

Does it change the pitch or volume of target… so you can tell depth?… could be pitch?…I like it when deep targets are not as loud… sorta like the 3030 and E-trac… I hate the depth gauge … by the way … does anybody get super high numbers on deep wheats and Silver… seems like it shows like 94…95… crazy

 

[Rattlehead]

Does it change the pitch or volume of target… so you can tell depth?… could be pitch?…I like it when deep targets are not as loud… sorta like the 3030 and E-trac… I hate the depth gauge … by the way … does anybody get super high numbers on deep wheats and Silver… seems like it shows like 94…95… crazy

Yes, it changes the pitch, not the volume. The further a target is away from the coil, the lower the pitch. To me, it makes it really easy to instantly know when you're over a deeper target. To my ears, its lot easier than just using modulation alone which only makes deeper target sound softer. Yeah, I've seen deep targets up-average occasionally with lots of different detectors.

 

[markinswpa]

by the way … does anybody get super high numbers on deep wheats and Silver… seems like it shows like 94…95… crazy

Yes, more often than I would like. Never happened, or rarely with the Etrac. I first noticed it when I started using SMF machines E 800 in early 2018, then the 900, Legend and now the Manticore. At first with the Manticore the Ids were spot on but it didn't last long. And I'm talking about stand alone signals, not co mingled. I would get a beautiful 92-93 only to dig an 8 in. memorial. I'm ok or learned to live with high Ids if they fluctuate down in to the 70s or high 60s. I know not to get my hopes up. I've dug wheats and memorials that have rung in at 98-99. With a silver coin, most times it will keep within two or three numbers and not jump up and down. Its those damn solid high deep 90s signals that turn out to be a penny instead of silver that frustrate me. By the way I use 5 tone. I know this thread is on depth audio but you ask so I thought I would throw my two cents in.

 

[mascard1]

I use all tones… and it happens a lot