You were born without voice but that never stopped any of the greats, however due to a twist in fate you are a silent magic user you have somehow warped the fabric of magic through your sheer will, and your knowledge of years of study. Your relationship with the weave has turned part of your mind against you due to its wild untamed nature loose upon the world with out the cage of word. Your spells come from your mind but are heard when you think them within range of the spell. Gifted and cursed although there is no need for you to speak the spell you suffer when you try to deceive.
How ever you have come to lose your voice, you have found a way to not only survive but thrive within a community that has rarely seen someone like you. Although you feel as though those around you must see you in a different light you strive every day to remind the world around you and yourself, that people break expectation on a daily basis. You have found a connection to the world around you. You have learned to speak without words, your mind has learned to speak using your thoughts the only downfall is sometimes your thoughts have a way of betraying you. You can not lie using spells without that spell being heard by those you wish to deceive(deception throw at disadvantage). When casting the spell it is verbalized by the magic itself, creatures within range hear the spell as if it was spoken.

Mind or Music

Mind or Music
Long ago your line was cursed.All sorcerers born into your family was born with a silent tongue. The pain of the magic within you has forced you to find a way to release it. Albeit unconventional.

This subclass offers 2 paths the Telepathic Curse and Weave Minstrel.

Cursed Telepathy

Cursed Telepathy

You may lack voice but nature always finds a way.You gain the ability to cast verbal spells with the use of telepathy. Your mind casts spells with audible thoughts. You do not become immune with effects that would disrupt verbal spells being gagged or other such instances that would otherwise not be allowed by rules with other casters.

At level 1.The weave within you can not hide your intentions.If you are attempting a charm person or disguise you must roll at a disadvantage when casting charm person disguise self alter self suggestion and other magics of these types requiring verbal component . Your mind cant help but to telepathically transmit the words of your spells upon failure. If successful role you are able to quiet your mind and the spell is not heard by those who you wish to affect.
Mental words

The ability does not come at no cost though, through a twisted turn you feed off the weave as it feeds off you. To cast a spell with verbal components you must expel 1 hit point per spell level. Unless affects are negated by subtle spell.(deception throw at disadvantage). When casting the spell it is verbalized by the magic itself, creatures within range hear the spell as if it was spoken.

Weave Minstrel

You have found a way to sway the weave of magic. The magic dances to the sound of your music much like it does around the words of other sorcerers. the complexity of tones intertwined within the weave and the notes come out as audible spells as if sung or spoken. How ever due to you investing the time you would have spent investing into telepathy with music you can not communicate Telepathically without magical means.

Magical voice
its taken plenty of years but you have become quite the musician.Drawn to music to express yourself you have found a way to integrate your natural born talent of magic in the way many control it with their voice. Although hindered in interactions using your flute to only cast spells, you otherwise talk in gestures pointing and written word.You must spend 1 hit point per verbal component spell cast through your musical voice.

Agonizing scream

You have bottled up the pain of silence for so long that you can harness it as an attack. 

 A thin green ray springs from your pointing finger to a target that you can see within range. The target can be a creature, an object, or a creation of magical force, such as the wall created by wall of force.

A creature targeted by this spell must make a Dexterity saving throw. On a failed save, the target takes 10d6 + 40 force damage. The target is disintegrated if this damage leaves it with 0 hit points.

A disintegrated creature and everything it is wearing and carrying, except magic items, are reduced to a pile of fine gray dust. The creature can be restored to life only by means of a true resurrection or a wish spell.

This spell automatically disintegrates a Large or smaller nonmagical object or a creation of magical force. If the target is a Huge or larger object or creation of force, this spell disintegrates a 10-foot- cube portion of it. A magic item is unaffected by this spell.

Amulet of Synthetic Speech

You have imbued your voice into this fine Amulet  

This Item is magical. It is meant to be used specifically by the Silent Weave  Mage. But can be used by any class,without restriction. Amulet contains 3 charges that can be recharged with a long rest.   

At 11th level the wearer who suffers from Cursed Telepathy can spend 2 weeks connecting their mind and thoughts to it. Charge last 1 hour and  can then use the amulet to convey thought. For that hour the Cursed Telepathy is nulled. Disadvantage on Deception (or intimidation for Weave Minstrel)  rolls is negated. Charge can be used as an action bonus action or if not in combat  instantaneous.

Wisp Step

The wisp have spent years silently communicating with you honing your skills and guiding you in your silent plight.Feeling a kindredness to the silent strength you exude they have decided that instead of leading you astray they will guide you with your journey. You gain their kindness once per long rest and only to a recently familiar place.

As you place the Swamp grass on the burning candle a string of willi-o-wisp emerge from the smoke. They swirl and twirl as they grow. You become entranced as you share the thought of your destination.You must have visited within the last 2 weeks. A hazy ball of light appears You and up to 6 willing creatures can enter and reappear at the destination. The Teleport holds open for one minute.

Inner Angst

At 18th level, you gain a reasonable grasp of the Weave around and within.As an action, you may spend 6 sorcery points and concentrate all magics around you any creatures within 120 feet of you,must make a Constitution saving throw. If they fail, they are reduced to 0 hit points. If they succeed, they take 10d10 lightning  damage.