The Cleaving
Meccan · 19 verses · Revelation order 82 · Mushaf order 82
بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ
Bismi Allâhi alrraḥmâni alrraḥeemi
إِذَا ٱلسَّمَآءُ ٱنفَطَرَتْ
Iẕâ alssamâo infaṭarat
وَإِذَا ٱلْكَوَاكِبُ ٱنتَثَرَتْ
Waiẕâ alkawâkibu intatharat
وَإِذَا ٱلْبِحَارُ فُجِّرَتْ
Waiẕâ albiḥâru fujjirat
وَإِذَا ٱلْقُبُورُ بُعْثِرَتْ
Waiẕâ alqubooru buʿthirat
عَلِمَتْ نَفْسٌ مَّا قَدَّمَتْ وَأَخَّرَتْ
ʿalimat nafsun mâ qaddamat waakhkharat
يَٰٓأَيُّهَا ٱلْإِنسَٰنُ مَا غَرَّكَ بِرَبِّكَ ٱلْكَرِيمِ
Yâ ayyuhâ alinsânu mâ gharraka birabbika alkareemi
ٱلَّذِى خَلَقَكَ فَسَوَّىٰكَ فَعَدَلَكَ
Allaẕee khalaqaka fasawwâka faʿadalaka
فِىٓ أَىِّ صُورَةٍ مَّا شَآءَ رَكَّبَكَ
Fee ayyi ṣooratin mâ shâa rakkabaka
كَلَّا بَلْ تُكَذِّبُونَ بِٱلدِّينِ
Kallâ bal tukaẕẕiboona bialddeeni
وَإِنَّ عَلَيْكُمْ لَحَٰفِظِينَ
Wainna ʿalaykum laḥâfiẓeena
كِرَامًا كَٰتِبِينَ
Kirâman kâtibeena
يَعْلَمُونَ مَا تَفْعَلُونَ
Yaʿlamoona mâ tafʿaloona
إِنَّ ٱلْأَبْرَارَ لَفِى نَعِيمٍ
Inna alabrâra lafee naʿeemin
وَإِنَّ ٱلْفُجَّارَ لَفِى جَحِيمٍ
Wainna alfujjâra lafee jaḥeemin
يَصْلَوْنَهَا يَوْمَ ٱلدِّينِ
Yaṣlawnahâ yawma alddeeni
وَمَا هُمْ عَنْهَا بِغَآئِبِينَ
Wamâ hum ʿanhâ bighâibeena
وَمَآ أَدْرَىٰكَ مَا يَوْمُ ٱلدِّينِ
Wamâ adrâka mâ yawmu alddeeni
ثُمَّ مَآ أَدْرَىٰكَ مَا يَوْمُ ٱلدِّينِ
Thumma mâ adrâka mâ yawmu alddeeni
يَوْمَ لَا تَمْلِكُ نَفْسٌ لِّنَفْسٍ شَيْـًٔا وَٱلْأَمْرُ يَوْمَئِذٍ لِّلَّهِ
Yawma lâ tamliku nafsun linafsin shayan waalamru yawmaiẕin lillâhi
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 | 61 | 1 | Envelope | 1024 |
| ب | 14 | 2 | Envelope | 1024 |
| ج | 3 | 3 | Envelope | 768 |
| د | 8 | 4 | Envelope | 1024 |
| ه | 6 | 5 | Envelope | 640 |
| و | 22 | 6 | Envelope | 768 |
| ح | 3 | 8 | Envelope | 1024 |
| ط | 1 | 9 | Envelope | 1152 |
| ي | 31 | 10 | Envelope | 640 |
| ك | 18 | 20 | Envelope | 640 |
| ل | 31 | 30 | Envelope | 960 |
| م | 27 | 40 | Envelope | 640 |
| ن | 23 | 50 | Envelope | 800 |
| س | 6 | 60 | Envelope | 960 |
| ع | 8 | 70 | Envelope | 1120 |
| ف | 13 | 80 | Envelope | 640 |
| ص | 2 | 90 | Envelope | 720 |
| ق | 3 | 100 | Carrier | 800 |
| ر | 19 | 200 | Carrier | 800 |
| ش | 2 | 300 | Carrier | 600 |
| ت | 12 | 400 | Carrier | 800 |
| ث | 3 | 500 | Carrier | 1000 |
| خ | 2 | 600 | Carrier | 600 |
| ذ | 7 | 700 | Carrier | 700 |
| ظ | 1 | 900 | Carrier | 900 |
| غ | 2 | 1000 | Carrier | 1000 |
| Total abjad value of the verse | 26295 | |||
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.