British English AI Voices
Seven British voices, listed in full rather than selected. Isla, Julia and Poppy are female, Alistair, Edward and Noah male. Enough for most projects, small enough to audition in five minutes.

VOICES FOR THIS USE CASE
A small, complete set
Seven voices carry the British tag. That is the entire group rather than a selection, so casting is a matter of which one fits rather than searching a large pool. Isla, Julia and Poppy are female; Alistair, Edward and Noah male.
Planning around a small pool
At seven voices, producing at volume means the same voice recurring across your material. Whether that helps or hurts depends on the brand. Where a distinctive British voice is essential and none of the seven fit, cloning is the alternative, with consent from the speaker.
Setting the language for British voices
Set language to en. These voices belong to the European family, which also accepts Dutch, French, German, Italian, Polish, Portuguese, Russian, Spanish and Swedish. Only English is recommended for them, so treat the rest as technically possible rather than supported.
What is not adjustable
There is no pitch, tone or emotion parameter, so a voice cannot be shifted toward a different British register after generation. Speed, from 0.5 to 2.0, is the only delivery control. Regional variation within British English is therefore a casting decision, not a setting.
SPECIFICATION
Sample rate
44.1 kHz native, resampled to 8 kHz for telephony
Latency
~200 ms to first byte (p50, warm region)
Output formats
ulaw, alaw, PCM 16-bit, WAV, MP3
Streaming transports
WebSocket, HTTP chunked transfer
Speed range
0.5× – 2.0×, set per request
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British English AI Voices
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