[Android Software Development] jmxc23:
Note To all: Please don't request for DDC profiles as you can now create your own DDC profile. You can also make requests at [MENTION=283250]Joebloggs[/MENTION] thread.

Note #2: DO NOT ASK FOR V4A PROFILES as I don't own every pair of headphones nor do I make profiles for you. I will however help you create your own profile.

This is a troubleshooting thread specifically for a feature found in the Viper4android app. This feature is called Viper DDC.

What is Viper DDC?

When this feature is enabled you're suppose to hear a neutral audio response from your headphones. This means that the lows, mids and highs are not emphasized over another which is similar to reference grade headphones. However due to the different measurement standards from sites the viper developers use as reference you will get varied results. Furthermore the DDC alone might not be enough to get a neutral/balanced sound.

Can I try other DDC if there isn't one for my headphones?

You can try but unless those headphones have a similar sound to the ones you own it will just sound like crap.

What is the purpose of this thread?

1. Help people understand the feature and how to use it.

2. Help people create profiles since the profile thread is for profile sharing.

Types Of Headphones:

Circumaural: full-sized headphones with ear cups that go over the ears. Also known as Over-Ear headphones.

Super-Aural: headphones with ear cups that go on the ears. Also known as On-Ear headphones.

Open Back: types of headphones with open back ear cups. These headphones allow more ambient noise into the headphones and leaks sound out of the headphones. Despite that it gives a more natural speaker sound.

Closed Back: these are basically headphones with the back of ear cups sealed. These headphones have a smaller soundstage but have a lower bass frequency than its open back counterparts. Closed backs also have better noise isolation.

Earphones: Also called earbuds these are small headphones that sit in the outer ear.

In Ear headphones: also called canalphones or in-ear monitors these small headphones sit in the inner ear.

Semi Open Back and Hybrid Earphones: these headphones have the combined design of the above headphones. Semi open back has the combined design of open backs and closed backs while hybrids are iem/earbud cross design.

Types of Headphone Sound Signatures:

Basshead: this sound signature places emphasis on bass above all else in particular the impact, the depth and the power of the bass. A good basshead sound signature focuses on the deep rumbling sub-bass and not the boomy mid-bass. The sub-bass will allow the other frequencies to be heard.

Examples include: Velodyne V Pulse and NuForce NE-600X

Warm and Smooth: this sound signature has a slightly enhanced mid-bass and a slightly laid back treble. This results in a rich full bodied sound.

Examples include: Xiaomi Piston 2 and Shure se215

V-shape/Rock setting: all equalisers have a rock setting and that rock setting is a v shaped sound signature. This sound emphasized the bass and treble frequencies with recessed mid range sound. What is unique about it is that it sounds balanced at lower volumes.

Examples include: Sennheiser Momentum In-Ear and SoundMagic E10

Balanced: this sound signature has no emphasis on any aspect of audio. This results in a clear and accurate depiction of the music. There are three sub categories of balanced sound signatures which is neutral, bright(slight treble boost) and mid-centric.

Examples include: AKG K701 and Phillips Fidelio S1

Analytical: this sound signature focuses on detail and clarity. You can hear all tiny nuances in a recording. This sound signature unfortunately isn't good for popular music but amazing for classical music.

Useful Links:

Viper 4 Android Main Thread

V4A Profiles Thread

Extremebeats audio mod

Credit to [MENTION=3901724]zhuhang[/MENTION] and Viper520 for creating V4A and it's irs files respectively.

Credit to [MENTION=5605825]Ben Feutrill[/MENTION] for creating one of the few mods that works with V4A for an even better sound.