Jesus said they that believe shall speak with new tongues. So do fit the description of a believer according to Jesus? I do. I take it your "group" doesn't either.
To speak with "new tongues" doesn't mean the tongues were non-human. It means to speak in languages which were new to the speaker.
Mounce Greek Lexicon
καινός
Strong's number:
2537
Gloss:
new, latest, anew; in some contexts new is superior to old (Mt 9:17; Heb 8)
Definition:
new, recently made, Mt. 9:17; Mk. 2:22; new in species, character, or mode, Mt. 26:28, 29; Mk. 14:24, 25; Lk. 22:20; Jn. 13:34; 2 Cor. 5:17; Gal. 6:15; Eph. 2:15; 4:24; 1 Jn. 2:7; Rev. 3:12; novel, strange, Mk. 1:27; Acts 17:19; new to the possessor, Mk. 16:17; unheard of, unusual, Mk. 1:27; Acts 17:19; met. renovated, better, of higher excellence, 2 Cor. 5:17; Rev. 5:9
Nowhere in scripture does it say tongues were a non-human language. In fact, up until the start of the twentieth century the idea of tongues being a non-human language was unheard of. The only description of tongues is in Acts 2, which clearly says it is miraculously speaking a foreign language you have never learned.
Do you speak in tongues as scripture describes it? I suspect you don't. I suspect what you have discovered is the natural phenomenon of the flesh known to linguists as 'free vocalisation' or glossolalia, where the speech organs go into 'auto-pilot' and produce strings of random syllables. Professional linguists have been studying glossolalia for years. The most respected study is by Dr. William Samarin of the University of Toronto who did a 10 year study of Pentecostal tongues. Here are some excerpts from his study:
"There is no mystery about glossolalia. Tape recorded samples are easy to obtain and to analyze. They always turn out to be the same things: strings of syllables made up of sounds taken from among all those that the speaker knows, put together more or less haphazardly but which nevertheless emerge as word-like or sentence-like units”
"The speaker controls the rhythm, volume, speed and inflection of his speech so that the sounds emerge as pseudo- language -- in the form of words and sentences. Glossolalia is language-like because the speaker unconsciously wants it to be language-like. Yet in spite of superficial similarities, glossolalia fundamentally is not language.”
"All specimens of glossolalia that have ever been studied have produced no features that would even suggest that they reflect some kind of communicative system.”
"When the full apparatus of linguistic science comes to bear on glossolalia, this turns out to be only a facade of language; although at times a very good one indeed. For when we comprehend what language is, we must conclude that no glossa, no matter how well constructed, is a specimen of human language, because it is neither internally organized nor systematically related to the world man perceives."
"...a meaningless but phonologically structured human utterance believed by the speaker to be a real language but bearing no systematic resemblance to any natural language, living or dead."
“And it has already been established that no special power needs to take over a person's vocal organs; all of us are equipped with everything we need to produce glossolalia”
"Glossolalia is not a supernatural phenomenon....It is similar to many other kinds of speech humans produce in more or less normal circumstances, in more or less normal psychological states. In fact, anybody can produce glossolalia if he is uninhibited and if he discovers what the "trick" is"
Millions of people have been misled by the Pentecostal/charismatic movement teaching that this practice is New Testament tongues. What people call 'tongues' today does not match the biblical description of the gift. Not even Pentecostalism's leading theologian, Gordon Fee, is prepared to say that today's so-called 'tongues' is New Testament tongues. The most he is prepared to say is that it is something 'analogous' to NT tongues.