The following is based on relatively scant trip notes (I have notes for most of it, but they are brief), and my rather less scant memory of the experience. The Methylone no more modulated the experience than the cups of tea (perhaps less so, who knows?) so I deal with that briefly at the end of this report, and do not include the Methylone in the title. Since I had a fair period at Level 4 (more elaborate closed-ear audials), for the first time since my return to DiPT exploration, I focus most on describing this phase, in this report; dealing less with the open-ear audials such as the pitch shift.
Dose, substance, route
I took 98 mg (+/- 1 mg) of DiPT, orally. At t + 5.00, I took 80 mg (+/- 1 mg) of Methylone, orally.
Circumstances
I took the DiPT alone in my flat at 7.25 pm on a Saturday evening, having been awake since 7.00 am and having spent a pleasant day alone, and with no academic obligations for the following day, and the only interpersonal obligation being to see my girlfriend on the following day's evening at about 9 pm. However, I was quite tired (reduced sleep in past week).
Expectations
I've taken DiPT over a dozen times before, most recently two weeks previously. Based on my previous experiences (70 mg takes me to level 3, 100 mg to level 4, as described in my summary of my past DiPT experiences in the B&D DiPT thread), I expected to experience a three-semitone perceived pitch lowering for a a few hours, accompanied by vocoding of voices, low-pass filtering, among other things; and I expected to experience a reasonable and quite intense peak within that, in which the distortions of pitch and timbre became more exotic and, in silence, prominent and elaborate closed ear audials manifested, accompanied by psychedelic cognition.
My motivations for this trip were two-fold: I wanted to reacquaint myself with the more intense closed-ear-audial/psychedelic phase of DiPT (having only touched briefly upon it in my recent 86 mg trip, and having got nowhere near it on my most recent 96 mg trip on an insufficiently empty stomach), and collect more data at a range of frequencies on my pitch perception, particularly during the more intense auditory phases (where one might expect the effects to be large enough for nonlinearities to be detected). This last was not achieved during the last trip - I was too tired, and performed the task too infrequently and too inattentively to produce much useful data.
Commentary
A successful trip, in most respects. I was delighted to meet the CEAs again, and pleased to manage to go outside during the trip (although, leaving it too late perhaps, going out was less astounding than I'm sure it could have been), and interested to note some differences in OEAs from what I'm used to. Taking the dose on a relatively empty stomach is, I'm fairly sure, why this dose was so much more effective than the similar dose I had a couple of weeks previously on a relatively full stomach.
Quantitative data collection did happen, but there were large gaps (the cognitive peak was relatively long, and I was ill-disciplined), and I went to sleep before the auditory come-down had properly begun. Also, I'm still working on an improved method of assessing perceived pitch in noisy data (i.e. data from someone, like myself, who can't perfectly name a note correctly every time). It seems that the extent to which pitchclasses sound like each other, for me, is quite different for different pitchclasses. I very rarely mistake 'C' for something else, for instance, but 'Bb' I confuse with several other pitchclasses fairly often. I think, if I can model that structure of pitch similarity for an individual participant, I can use that to model their data to assess the perceived pitch.
What I can say is that there was a clear shift down to at least around 2 semitones down, where it stayed until I slept. Given the lack of data during the cognitive peak (also the peak of CEAs), it's quite possible the true peak was lower than 2 semitones. I can also say that I found no significant difference among the three octave ranges tested (110-220 Hz, 220-440Hz, and 440-880 Hz), although the lower pitches were harder to discriminate; and there was a slight (but utterly nonsignificant) difference in the shift, with the middle of those three octaves being shifted down slightly less than the lower and higher ones.
If I can work out a way of getting more out of this data, through more effective analyses, I'll add that to this report.
Time Course
Auditory: Voices sounded deepened from t+0.45; high pitched noise and 1 semitone drop in perceived pitch from t+1.00. At some point in the hour following that, pitch shifted down another semitone, middle tones were suppressed and perhaps some slow amplitude modulation was noted (perhaps phase shifting could account for both of these?). More elaborate closed-ear audials between t+2.00 and t+3.00. At several points in the middle of the trip, pitch seemed to be shifted down three semitones on the piano, but this wasn't confirmed by analysis of my data for pitch perception of pure tones (less data was collected during this period). Harmonic distortion and voice distortion noted from t+1.45. This was reduced, but by no means gone at t+6.00 (Toyah's The Vow sounded 'fat'). By t+8.00, I think the distortion had mostly gone, although I'm not entirely sure. Auditory distortion appeared to be fully gone on awaking at t+16.00.
Visual: Slight distortion and enhancement (just above threshold 'shrooms) from t+0.30 to t+3.30, more intensely so (but still like low dose 'shrooms) from t+0.45 till t+2.30.
Somatosensory/motor: Not much noted, but a mild pleasant body buzz from perhaps t+1.00 to t+4.00, subjectively experienced as mild stimulation during the earlier parts of that. No motor jitters.
Cognitive: First alerts noted at t+0.45. Mild, controllable psychedelic state (++) from t+1.00. +++ from t+1.45 to t+2.45. Back down, but not baseline, by t+3.00. Baseline by t+4.00. Slept at t+8.00, but I suspect sleep might have been possible much earlier (perhaps by t+5.00 or t+6.00), had I not taken Methylone at t+5.00.
Closed Ear Audials
... diving into a sea of rhythms, waves crashed on drums...
I'm guessing that closed-ear audials (CEAs) may be more variable than open-ear audials (OEAs), showing more individual differences and also more differences from trip to trip. With more visual psychedelics, we may be able to agree that one typically gets a lot of trails (visual motion temporal blurring) on 2C-B (I'd be interested to know, if not), but the sort of things you see when you close your eyes may be different from trip to trip and person to person. I imagine CEAs and CEVs are kind of like semi-random walks through the over-stimulated noise of one's sensory cortex; and, as such, would be affected by random factors, varying from trip to trip, and by idiosyncrasies of each individual's sensory cortex's structures and associations.
Nevertheless, I think there may be commonalities (though to get a very clear sense of them, something like the proposed massive effects-profile survey on psychedelic effects (see thread in PD) will be necessary), so I think it's worth trying to describe the CEAs.
Closed-ear audials were mostly (though not entirely) focussed on low frequencies on this occasion.
Let me (if you'll forgive my habit of trying to categorize and name everything) attempt to give a temporary classification, for the purposes of this report, of some of the closed-ear audials I've experienced across the several trips in which I've experienced them, with subjectively and very roughly estimated frequency range of slowest oscillation within each sound:
Delta [10000-100000 Hz] High pitched narrow-band noise (I think this is what people refer to as tinnitus)
Gamma [100-10000 Hz] Moderate pitched synthy bloops
Beta [100-10000 Hz] Moderate pitched chord sequences (of similar timbre to the bloops - think 80s synthpop - but sustained, and with some harmonic and melodic complexity, but not overly much: we're not talking Bach here, just someone idly playing around on the keyboard really; ETA: Maybe if Bach took DiPT, we would be talking Bach. Or perhaps we'd be talking Palestrina. My Beta, at any rate, isn't unlike a rather cheesy and not very contrapuntal remix of some Palestrina. Maybe. How would Bach, without knowledge of synths, have described these CEAs? Or would he even not have heard anything like the same sounds? Maybe I'm hearing synths only because my auditory cortex has been exposed to them. Maybe Bach would have got massed choirs.)
Alpha [1-100 Hz] Low and very low pitch percussion
These are not in order of occurrence or dose required to reach, necessarily; although Delta is pretty much always present, and is often present without any of the others; and I'm fairly sure it takes more DiPT to bring out Beta than Gamma. Not sure about Alpha; I think - but can't recall for certain - that it's always been present when Beta has, and maybe also with Gamma. So perhaps, for me, the order might be Delta Alpha Gamma Beta. (Note: when I say 'when' I mean 'during the same trip as', not 'at the same moment as', except when I said 'when' in this sentence, of course.)
Anyway, Alpha (along with Delta, inevitably; and some Gamma) was the main focus of the CEAs during this trip (indeed I don't think I noted any Beta at all on this occasion), so I'll try to describe the Alpha in a little more detail here:
hhwwwwoMM hhwwwwoMM hhwwwwoMM
watawatawatawata
PAtataPAtataPAtataPAtataPAtata
etc..., but with these various patterns (and others, at various different tempos) more overlaid on each other than that would suggest.
It's all pretty loud (especially the hhwwwwoMMs), but then loudness is a subjective and context-dependent measure (it's the subjective correlate of intensity, but is by no means completely correlated with it). Since, during this trip, I came out of my 'lying on the bed in darkness and near-(objective)silence listening to the CEAs' state in the middle of it, before returning to it; and since the CEAs stopped after I got up and stopped attending to them, and returned as soon as I returned my attention to them; I suspect that their loudness was highly dependent on my attention.
This suggests, perhaps, that they are not amplifications and distortions of objective sounds (my blood coursing through my body, the central heating system etc), but rather the noise in my auditory system which I may turn my attention to or not, as I choose. Then again, the subjective loudness of objective sounds is attentionally modulated to an extent, so I'm not sure.
It was, essentially, devoid of pitch. This was pure rhythm and intensity, with not a harmony nor a melody nor a pitch in sight. Conversely, Gamma has some pitch, maybe, but no melody or explicit rhythm, and Beta has pitch, melody, harmony, but no real rhythm (in my experience, the sequences have been rhythmically monotonous: every note a quaver, as it were); whereas Alpha has rhythms in abundance: multiple different rhythms consecutively and simultaneously.
But if you slowed down Beta beyond the limits of normal human pitch-perception, I think you might get something very like the rhythmic Alpha. A 440Hz vibration is a note; a 1Hz vibration is a beat. A series and mixture of various vibrations in the frequency range of human hearing is a harmonized melody (Beta); a similar series and mixture but in the 1Hz-10Hz range, say, is a complex rhythm (Alpha).
I think I read someone say something about infrasound on DiPT, but I can't recall for sure. Is this the same thing? Hearing frequencies that would normally be too low to perceive?
Open Ear Audials
... why did all the robots go to Neptune...?
Usually, when I trip on DiPT, people's voices sound first normal, then deepened (as if by an enhancing of already existing low frequencies within the voice and/or suppression of the mid-range frequencies), then metallic and robotized. But it seems this aspect of the OEAs is not a constant, but rather one point on a spectrum of points that a certain parameter can take.
On this occasion, people sounded not like robots, but rather more like fish.
My contention is that there is a fish-robot spectrum; or rather a spectrum on which fish and robots are merely two points. Elderly men may provide another point on that spectrum, I would suggest. I may be wrong, and must try out my explanation by processing some sounds in the way I'm hypothesizing DiPT processes them, to see whether they sound like they should. I'm by no means an expert in audio processing, so I may be well off the mark, but here goes anyway...
My guess is that the harsh, robotlike metallic voice and the wobbly, bloated, fish like voice, are both produced by frequency modulation, but with different FM rates. I think a relatively high FM rate could produce the robot, and a relatively low FM rate (so that the wobble in pitch was slow enough to be perceived as such) would make the fish.
I wonder if these are equivalent to the OEVs of bright, shimmeringness and warping waviness, respectively.
Conceivably, this wobbliness is just a milder or stronger version of the vocoding; but that doesn't seem to fit with my experience: I don't believe I've noted the wobbliness in any major way on the way up or down to the vocoding on other trips, nor did I note vocoding on the way up to this wobbliness (but maybe I wasn't listening to voices at the appropriate times). It seems more that I just happened to get a different type of voice-alteration on this trip than I most often have.
Going out
I went out, just for a short walk around the block, at t+3.20. The auditory experience was certainly strange, but not overwhelming. The content of speech could barely be made out; not at all when in areas with quite a lot of speaking happening. A babble of fat wobbly air tubes. Cognitively, I was near, though not quite at, baseline. It would be interesting to be outside for the peak.
Experience
I've taken DiPT over a dozen times before at between 60 and 100 mg oral doses. Previous experience with other psychedelics (including a few debatable psychedelics) includes:
Methylone (more than a dozen times, at doses mostly between 180 mg and 240 mg),
MDMA (perhaps three times a long time ago, at 120 mg to 150 mg doses, I'd guess, and more recently one 80 mg dose),
2C-B (twice at 25 mg, once at c. 15 mg; twice more recently at 26 mg),
2C-C (once at 36 mg),
2C-E (half a dozen times, at 18 to 25 mg),
LSA (once, unknown low dose from perhaps 6 HBWR seeds, iirc)
LSD (a few times, a long time ago, mostly fairly low - but not precisely known - doses),
4-HO-DMT and 4-PO DMT (both in the form of mushrooms, at a wide range of not precisely known doses, on many occasions, ranging from threshhold to intense trips),
4-AcO-DMT (four occasions, ranging from 10 mg to 30 mg),
pFPP (one occasion, 60 mg),
Salvinorin A (in the form of smoked Salvia divinorum perhaps a dozen times, range of not very precise doses, from threshold to intense in effects),
THC (in the form of smoked cannabis, innumerable times, wide range of doses).
What else passed my lips that day?
Food: At t-6.00, light lunch of cheese sandwich and three biscuits. At t-10.30, two slices of toast. At t-12.30, a bowl of cereal.
During the trip, nothing was eaten apart from a quarter of a thin slice of bread at around t+4.00, and again at around t+6.00.
Other drugs: caffeine (in the form of tea and coffee) during the day, but not in the previous four hours; nicotine (in the form of smoked cigarettes) during the day (perhaps 10 roll-ups). Tobacco and suspected cannabinoids were smoked regularly throughout the DiPT trip.
Methylone 80 mg oral was taken at t+5.00, and had no apparent interaction with the DiPT effects, rather just overlaying its brief effects over them. A mild, pleasant warmth and empathogenesis noted at 20 minutes after ingesting the Methylone, Mild stimulation and jaw clenching from 40 minutes after ingestion. Sociableness and empathy were not particularly enhanced during social interactions that I engaged in during this stimulation period (normally - on higher doses of Methylone - I feel quite lively and sociable for a while). Sleep was possible at three hours after ingestion.
What other drugs had I used recently?
Most recent was 26 mg 2C-B 11 days before this trip. Prior to that, was 98 mg DiPT 14 days before this trip. No other psychedelic, empathogenic, or stimulant use (other than suspected cannabinoids, tobacco, and caffeine) in the past month.
Would I do it again?
By golly yes of course. For pleasure, amazement, and research (if those can be separated at all). Expect next dose will be taken much earlier during the day, allowing perhaps more piano play and also less tiredness, and at a higher dose than previously. Perhaps 125 mg. I am starting to suspect, based on the relative lightness of even this 98 mg experience, that my old scales (which I was using during my last period of DiPT exploration) may have been dodgily giving me inaccurate measurements: perhaps what I thought was 100 mg back then was rather higher. Anyway, I have better scales now, so hopefully my dose-response relationship should be estimable as I try out various doses.
substancecode_dipt
substancecode_methylone
_combo_
explevel_experienced
Dose, substance, route
I took 98 mg (+/- 1 mg) of DiPT, orally. At t + 5.00, I took 80 mg (+/- 1 mg) of Methylone, orally.
Circumstances
I took the DiPT alone in my flat at 7.25 pm on a Saturday evening, having been awake since 7.00 am and having spent a pleasant day alone, and with no academic obligations for the following day, and the only interpersonal obligation being to see my girlfriend on the following day's evening at about 9 pm. However, I was quite tired (reduced sleep in past week).
Expectations
I've taken DiPT over a dozen times before, most recently two weeks previously. Based on my previous experiences (70 mg takes me to level 3, 100 mg to level 4, as described in my summary of my past DiPT experiences in the B&D DiPT thread), I expected to experience a three-semitone perceived pitch lowering for a a few hours, accompanied by vocoding of voices, low-pass filtering, among other things; and I expected to experience a reasonable and quite intense peak within that, in which the distortions of pitch and timbre became more exotic and, in silence, prominent and elaborate closed ear audials manifested, accompanied by psychedelic cognition.
My motivations for this trip were two-fold: I wanted to reacquaint myself with the more intense closed-ear-audial/psychedelic phase of DiPT (having only touched briefly upon it in my recent 86 mg trip, and having got nowhere near it on my most recent 96 mg trip on an insufficiently empty stomach), and collect more data at a range of frequencies on my pitch perception, particularly during the more intense auditory phases (where one might expect the effects to be large enough for nonlinearities to be detected). This last was not achieved during the last trip - I was too tired, and performed the task too infrequently and too inattentively to produce much useful data.
Commentary
A successful trip, in most respects. I was delighted to meet the CEAs again, and pleased to manage to go outside during the trip (although, leaving it too late perhaps, going out was less astounding than I'm sure it could have been), and interested to note some differences in OEAs from what I'm used to. Taking the dose on a relatively empty stomach is, I'm fairly sure, why this dose was so much more effective than the similar dose I had a couple of weeks previously on a relatively full stomach.
Quantitative data collection did happen, but there were large gaps (the cognitive peak was relatively long, and I was ill-disciplined), and I went to sleep before the auditory come-down had properly begun. Also, I'm still working on an improved method of assessing perceived pitch in noisy data (i.e. data from someone, like myself, who can't perfectly name a note correctly every time). It seems that the extent to which pitchclasses sound like each other, for me, is quite different for different pitchclasses. I very rarely mistake 'C' for something else, for instance, but 'Bb' I confuse with several other pitchclasses fairly often. I think, if I can model that structure of pitch similarity for an individual participant, I can use that to model their data to assess the perceived pitch.
What I can say is that there was a clear shift down to at least around 2 semitones down, where it stayed until I slept. Given the lack of data during the cognitive peak (also the peak of CEAs), it's quite possible the true peak was lower than 2 semitones. I can also say that I found no significant difference among the three octave ranges tested (110-220 Hz, 220-440Hz, and 440-880 Hz), although the lower pitches were harder to discriminate; and there was a slight (but utterly nonsignificant) difference in the shift, with the middle of those three octaves being shifted down slightly less than the lower and higher ones.
If I can work out a way of getting more out of this data, through more effective analyses, I'll add that to this report.
Time Course
Auditory: Voices sounded deepened from t+0.45; high pitched noise and 1 semitone drop in perceived pitch from t+1.00. At some point in the hour following that, pitch shifted down another semitone, middle tones were suppressed and perhaps some slow amplitude modulation was noted (perhaps phase shifting could account for both of these?). More elaborate closed-ear audials between t+2.00 and t+3.00. At several points in the middle of the trip, pitch seemed to be shifted down three semitones on the piano, but this wasn't confirmed by analysis of my data for pitch perception of pure tones (less data was collected during this period). Harmonic distortion and voice distortion noted from t+1.45. This was reduced, but by no means gone at t+6.00 (Toyah's The Vow sounded 'fat'). By t+8.00, I think the distortion had mostly gone, although I'm not entirely sure. Auditory distortion appeared to be fully gone on awaking at t+16.00.
Visual: Slight distortion and enhancement (just above threshold 'shrooms) from t+0.30 to t+3.30, more intensely so (but still like low dose 'shrooms) from t+0.45 till t+2.30.
Somatosensory/motor: Not much noted, but a mild pleasant body buzz from perhaps t+1.00 to t+4.00, subjectively experienced as mild stimulation during the earlier parts of that. No motor jitters.
Cognitive: First alerts noted at t+0.45. Mild, controllable psychedelic state (++) from t+1.00. +++ from t+1.45 to t+2.45. Back down, but not baseline, by t+3.00. Baseline by t+4.00. Slept at t+8.00, but I suspect sleep might have been possible much earlier (perhaps by t+5.00 or t+6.00), had I not taken Methylone at t+5.00.
Closed Ear Audials
... diving into a sea of rhythms, waves crashed on drums...
I'm guessing that closed-ear audials (CEAs) may be more variable than open-ear audials (OEAs), showing more individual differences and also more differences from trip to trip. With more visual psychedelics, we may be able to agree that one typically gets a lot of trails (visual motion temporal blurring) on 2C-B (I'd be interested to know, if not), but the sort of things you see when you close your eyes may be different from trip to trip and person to person. I imagine CEAs and CEVs are kind of like semi-random walks through the over-stimulated noise of one's sensory cortex; and, as such, would be affected by random factors, varying from trip to trip, and by idiosyncrasies of each individual's sensory cortex's structures and associations.
Nevertheless, I think there may be commonalities (though to get a very clear sense of them, something like the proposed massive effects-profile survey on psychedelic effects (see thread in PD) will be necessary), so I think it's worth trying to describe the CEAs.
Closed-ear audials were mostly (though not entirely) focussed on low frequencies on this occasion.
Let me (if you'll forgive my habit of trying to categorize and name everything) attempt to give a temporary classification, for the purposes of this report, of some of the closed-ear audials I've experienced across the several trips in which I've experienced them, with subjectively and very roughly estimated frequency range of slowest oscillation within each sound:
Delta [10000-100000 Hz] High pitched narrow-band noise (I think this is what people refer to as tinnitus)
Gamma [100-10000 Hz] Moderate pitched synthy bloops
Beta [100-10000 Hz] Moderate pitched chord sequences (of similar timbre to the bloops - think 80s synthpop - but sustained, and with some harmonic and melodic complexity, but not overly much: we're not talking Bach here, just someone idly playing around on the keyboard really; ETA: Maybe if Bach took DiPT, we would be talking Bach. Or perhaps we'd be talking Palestrina. My Beta, at any rate, isn't unlike a rather cheesy and not very contrapuntal remix of some Palestrina. Maybe. How would Bach, without knowledge of synths, have described these CEAs? Or would he even not have heard anything like the same sounds? Maybe I'm hearing synths only because my auditory cortex has been exposed to them. Maybe Bach would have got massed choirs.)
Alpha [1-100 Hz] Low and very low pitch percussion
These are not in order of occurrence or dose required to reach, necessarily; although Delta is pretty much always present, and is often present without any of the others; and I'm fairly sure it takes more DiPT to bring out Beta than Gamma. Not sure about Alpha; I think - but can't recall for certain - that it's always been present when Beta has, and maybe also with Gamma. So perhaps, for me, the order might be Delta Alpha Gamma Beta. (Note: when I say 'when' I mean 'during the same trip as', not 'at the same moment as', except when I said 'when' in this sentence, of course.)
Anyway, Alpha (along with Delta, inevitably; and some Gamma) was the main focus of the CEAs during this trip (indeed I don't think I noted any Beta at all on this occasion), so I'll try to describe the Alpha in a little more detail here:
hhwwwwoMM hhwwwwoMM hhwwwwoMM
watawatawatawata
PAtataPAtataPAtataPAtataPAtata
etc..., but with these various patterns (and others, at various different tempos) more overlaid on each other than that would suggest.
It's all pretty loud (especially the hhwwwwoMMs), but then loudness is a subjective and context-dependent measure (it's the subjective correlate of intensity, but is by no means completely correlated with it). Since, during this trip, I came out of my 'lying on the bed in darkness and near-(objective)silence listening to the CEAs' state in the middle of it, before returning to it; and since the CEAs stopped after I got up and stopped attending to them, and returned as soon as I returned my attention to them; I suspect that their loudness was highly dependent on my attention.
This suggests, perhaps, that they are not amplifications and distortions of objective sounds (my blood coursing through my body, the central heating system etc), but rather the noise in my auditory system which I may turn my attention to or not, as I choose. Then again, the subjective loudness of objective sounds is attentionally modulated to an extent, so I'm not sure.
It was, essentially, devoid of pitch. This was pure rhythm and intensity, with not a harmony nor a melody nor a pitch in sight. Conversely, Gamma has some pitch, maybe, but no melody or explicit rhythm, and Beta has pitch, melody, harmony, but no real rhythm (in my experience, the sequences have been rhythmically monotonous: every note a quaver, as it were); whereas Alpha has rhythms in abundance: multiple different rhythms consecutively and simultaneously.
But if you slowed down Beta beyond the limits of normal human pitch-perception, I think you might get something very like the rhythmic Alpha. A 440Hz vibration is a note; a 1Hz vibration is a beat. A series and mixture of various vibrations in the frequency range of human hearing is a harmonized melody (Beta); a similar series and mixture but in the 1Hz-10Hz range, say, is a complex rhythm (Alpha).
I think I read someone say something about infrasound on DiPT, but I can't recall for sure. Is this the same thing? Hearing frequencies that would normally be too low to perceive?
Open Ear Audials
... why did all the robots go to Neptune...?
Usually, when I trip on DiPT, people's voices sound first normal, then deepened (as if by an enhancing of already existing low frequencies within the voice and/or suppression of the mid-range frequencies), then metallic and robotized. But it seems this aspect of the OEAs is not a constant, but rather one point on a spectrum of points that a certain parameter can take.
On this occasion, people sounded not like robots, but rather more like fish.
My contention is that there is a fish-robot spectrum; or rather a spectrum on which fish and robots are merely two points. Elderly men may provide another point on that spectrum, I would suggest. I may be wrong, and must try out my explanation by processing some sounds in the way I'm hypothesizing DiPT processes them, to see whether they sound like they should. I'm by no means an expert in audio processing, so I may be well off the mark, but here goes anyway...
My guess is that the harsh, robotlike metallic voice and the wobbly, bloated, fish like voice, are both produced by frequency modulation, but with different FM rates. I think a relatively high FM rate could produce the robot, and a relatively low FM rate (so that the wobble in pitch was slow enough to be perceived as such) would make the fish.
I wonder if these are equivalent to the OEVs of bright, shimmeringness and warping waviness, respectively.
Conceivably, this wobbliness is just a milder or stronger version of the vocoding; but that doesn't seem to fit with my experience: I don't believe I've noted the wobbliness in any major way on the way up or down to the vocoding on other trips, nor did I note vocoding on the way up to this wobbliness (but maybe I wasn't listening to voices at the appropriate times). It seems more that I just happened to get a different type of voice-alteration on this trip than I most often have.
Going out
I went out, just for a short walk around the block, at t+3.20. The auditory experience was certainly strange, but not overwhelming. The content of speech could barely be made out; not at all when in areas with quite a lot of speaking happening. A babble of fat wobbly air tubes. Cognitively, I was near, though not quite at, baseline. It would be interesting to be outside for the peak.
Experience
I've taken DiPT over a dozen times before at between 60 and 100 mg oral doses. Previous experience with other psychedelics (including a few debatable psychedelics) includes:
Methylone (more than a dozen times, at doses mostly between 180 mg and 240 mg),
MDMA (perhaps three times a long time ago, at 120 mg to 150 mg doses, I'd guess, and more recently one 80 mg dose),
2C-B (twice at 25 mg, once at c. 15 mg; twice more recently at 26 mg),
2C-C (once at 36 mg),
2C-E (half a dozen times, at 18 to 25 mg),
LSA (once, unknown low dose from perhaps 6 HBWR seeds, iirc)
LSD (a few times, a long time ago, mostly fairly low - but not precisely known - doses),
4-HO-DMT and 4-PO DMT (both in the form of mushrooms, at a wide range of not precisely known doses, on many occasions, ranging from threshhold to intense trips),
4-AcO-DMT (four occasions, ranging from 10 mg to 30 mg),
pFPP (one occasion, 60 mg),
Salvinorin A (in the form of smoked Salvia divinorum perhaps a dozen times, range of not very precise doses, from threshold to intense in effects),
THC (in the form of smoked cannabis, innumerable times, wide range of doses).
What else passed my lips that day?
Food: At t-6.00, light lunch of cheese sandwich and three biscuits. At t-10.30, two slices of toast. At t-12.30, a bowl of cereal.
During the trip, nothing was eaten apart from a quarter of a thin slice of bread at around t+4.00, and again at around t+6.00.
Other drugs: caffeine (in the form of tea and coffee) during the day, but not in the previous four hours; nicotine (in the form of smoked cigarettes) during the day (perhaps 10 roll-ups). Tobacco and suspected cannabinoids were smoked regularly throughout the DiPT trip.
Methylone 80 mg oral was taken at t+5.00, and had no apparent interaction with the DiPT effects, rather just overlaying its brief effects over them. A mild, pleasant warmth and empathogenesis noted at 20 minutes after ingesting the Methylone, Mild stimulation and jaw clenching from 40 minutes after ingestion. Sociableness and empathy were not particularly enhanced during social interactions that I engaged in during this stimulation period (normally - on higher doses of Methylone - I feel quite lively and sociable for a while). Sleep was possible at three hours after ingestion.
What other drugs had I used recently?
Most recent was 26 mg 2C-B 11 days before this trip. Prior to that, was 98 mg DiPT 14 days before this trip. No other psychedelic, empathogenic, or stimulant use (other than suspected cannabinoids, tobacco, and caffeine) in the past month.
Would I do it again?
By golly yes of course. For pleasure, amazement, and research (if those can be separated at all). Expect next dose will be taken much earlier during the day, allowing perhaps more piano play and also less tiredness, and at a higher dose than previously. Perhaps 125 mg. I am starting to suspect, based on the relative lightness of even this 98 mg experience, that my old scales (which I was using during my last period of DiPT exploration) may have been dodgily giving me inaccurate measurements: perhaps what I thought was 100 mg back then was rather higher. Anyway, I have better scales now, so hopefully my dose-response relationship should be estimable as I try out various doses.
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