The Splitting Open
Meccan · 25 verses · Revelation order 83 · Mushaf order 84
بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ
Bismi Allâhi alrraḥmâni alrraḥeemi
إِذَا ٱلسَّمَآءُ ٱنشَقَّتْ
Iẕâ alssamâo inshaqqat
وَأَذِنَتْ لِرَبِّهَا وَحُقَّتْ
Waaẕinat lirabbihâ waḥuqqat
وَإِذَا ٱلْأَرْضُ مُدَّتْ
Waiẕâ alarḍu muddat
وَأَلْقَتْ مَا فِيهَا وَتَخَلَّتْ
Waalqat mâ feehâ watakhallat
وَأَذِنَتْ لِرَبِّهَا وَحُقَّتْ
Waaẕinat lirabbihâ waḥuqqat
يَٰٓأَيُّهَا ٱلْإِنسَٰنُ إِنَّكَ كَادِحٌ إِلَىٰ رَبِّكَ كَدْحًا فَمُلَٰقِيهِ
Yâ ayyuhâ alinsânu innaka kâdiḥun ilâ rabbika kadḥan famulâqeehi
فَأَمَّا مَنْ أُوتِىَ كِتَٰبَهُۥ بِيَمِينِهِۦ
Faamâ man ootiya kitâbahu biyameenihi
فَسَوْفَ يُحَاسَبُ حِسَابًا يَسِيرًا
Fasawfa yuḥâsabu ḥisâban yaseerân
وَيَنقَلِبُ إِلَىٰٓ أَهْلِهِۦ مَسْرُورًا
Wayanqalibu ilâ ahlihi masroorân
وَأَمَّا مَنْ أُوتِىَ كِتَٰبَهُۥ وَرَآءَ ظَهْرِهِۦ
Waammâ man ootiya kitâbahu warâa ẓahrihi
فَسَوْفَ يَدْعُوا۟ ثُبُورًا
Fasawfa yadʿoo thuboorân
وَيَصْلَىٰ سَعِيرًا
Wayaṣlâ saʿeerân
إِنَّهُۥ كَانَ فِىٓ أَهْلِهِۦ مَسْرُورًا
Innahu kâna fee ahlihi masroorân
إِنَّهُۥ ظَنَّ أَن لَّن يَحُورَ
Innahu ẓanna an lan yaḥoora
بَلَىٰٓ إِنَّ رَبَّهُۥ كَانَ بِهِۦ بَصِيرًا
Balâ inna rabbahu kâna bihi baṣeerân
فَلَآ أُقْسِمُ بِٱلشَّفَقِ
Falâ oqsimu bialshshafaqi
وَٱلَّيْلِ وَمَا وَسَقَ
Waallayli wamâ wasaqa
وَٱلْقَمَرِ إِذَا ٱتَّسَقَ
Waalqamari iẕâ ittasaqa
لَتَرْكَبُنَّ طَبَقًا عَن طَبَقٍ
Latarkabunna ṭabaqan ʿan ṭabaqin
فَمَا لَهُمْ لَا يُؤْمِنُونَ
Famâ lahum lâ yuminoona
وَإِذَا قُرِئَ عَلَيْهِمُ ٱلْقُرْءَانُ لَا يَسْجُدُونَ
Waiẕâ quria ʿalayhimu alqurânu lâ yasjudoona
بَلِ ٱلَّذِينَ كَفَرُوا۟ يُكَذِّبُونَ
Bali allaẕeena kafaroo yukaẕẕiboona
وَٱللَّهُ أَعْلَمُ بِمَا يُوعُونَ
WaAllâhu aʿlamu bimâ yooʿoona
فَبَشِّرْهُم بِعَذَابٍ أَلِيمٍ
Fabashshirhum biʿaẕâbin aleemin
إِلَّا ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّٰلِحَٰتِ لَهُمْ أَجْرٌ غَيْرُ مَمْنُونٍۭ
Illâ allaẕeena âmanoo waʿamiloo alṣṣâliḥâti lahum ajrun ghayru mamnoonin
Frequency
Sound generated from the letter values (abjad) of the text; independent of recitation.
Bar height = weight (count); position = frequency (logarithmic)
Options
Letter table
| Letter | Count | Hz | Band | Folded Hz |
|---|---|---|---|---|
| ا | 86 | 1 | Envelope | 1024 |
| ب | 24 | 2 | Envelope | 1024 |
| ج | 2 | 3 | Envelope | 768 |
| د | 5 | 4 | Envelope | 1024 |
| ه | 23 | 5 | Envelope | 640 |
| و | 37 | 6 | Envelope | 768 |
| ح | 8 | 8 | Envelope | 1024 |
| ط | 2 | 9 | Envelope | 1152 |
| ي | 33 | 10 | Envelope | 640 |
| ك | 11 | 20 | Envelope | 640 |
| ل | 39 | 30 | Envelope | 960 |
| م | 27 | 40 | Envelope | 640 |
| ن | 31 | 50 | Envelope | 800 |
| س | 14 | 60 | Envelope | 960 |
| ع | 8 | 70 | Envelope | 1120 |
| ف | 13 | 80 | Envelope | 640 |
| ص | 3 | 90 | Envelope | 720 |
| ق | 15 | 100 | Carrier | 800 |
| ر | 24 | 200 | Carrier | 800 |
| ش | 3 | 300 | Carrier | 600 |
| ت | 16 | 400 | Carrier | 800 |
| ث | 1 | 500 | Carrier | 1000 |
| خ | 1 | 600 | Carrier | 600 |
| ذ | 10 | 700 | Carrier | 700 |
| ض | 1 | 800 | Carrier | 800 |
| ظ | 2 | 900 | Carrier | 900 |
| غ | 1 | 1000 | Carrier | 1000 |
| Total abjad value of the verse | 32939 | |||
The total is shown as a number only; it is not part of the sound. The sound comes entirely from the letters.
Measurement charts
Charts fill while sound is playing.
Envelope spectrum — measured, 0.24 Hz resolution
Wave spectrum — measured (1–1200 Hz, logarithmic)
Variation spectrum — periodicities of the letter sequence
Position = period length (letters, logarithmic); height = power. Label: letters/period and its Hz at the chosen k.
How it works
Derived from letter values only, independent of recitation. Below 100 Hz: envelope modulation · 100 Hz and above: carrier tone; in a verse with no letter above 100 Hz the letters themselves carry, octave-folded. Sound is generated live in the browser; no file.
Sequential: in recitation order, each verse's own frequency profile (its carriers and envelope) plays one after another; verse duration is proportional to its letter count and the playing verse is marked in the list.
Flow: the letter sequence as one phase-continuous wave; each letter lasts k full periods of its own frequency (intrinsic duration = Σ 1/value). In the folded mode the per-letter tempo is fixed.
At surah level too the sound comes from letters only; in Sequential mode each verse plays with its own letters, in order.