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1{ pkgs, ... }:
2let
3 model = pkgs.runCommand "model" { } ''
4 mkdir -p $out
5 ln -s ${
6 pkgs.fetchurl {
7 url = "https://huggingface.co/rhasspy/piper-voices/resolve/v1.0.0/en/en_US/libritts/high/en_US-libritts-high.onnx?download=true";
8 hash = "sha256-kSelWeEWA/ELNm0aIKx0JoJggdvFId5MJCDFdyjXPw8=";
9 }
10 } $out/model.onnx
11 ln -s ${
12 pkgs.fetchurl {
13 url = "https://huggingface.co/rhasspy/piper-voices/resolve/v1.0.0/en/en_US/libritts/high/en_US-libritts-high.onnx.json?download=true";
14 hash = "sha256-Lv3G1/lUWIuBgBMsvZuAAZM/3QCTLJK8kv0NICip6z0=";
15 }
16 } $out/model.onnx.json
17 '';
18
19 tts = pkgs.writers.writeBashBin "tts" ''
20 set -efu
21 set -x
22
23 offset=0
24 OUTPUT=$(mktemp -d)
25 trap 'rm -rf "$OUTPUT"' EXIT
26 SPEAKER=$[ $RANDOM % 900 ]
27 while read line; do
28 filename=$(printf '%04d' $offset).wav
29 echo "$line" |
30 ${pkgs.piper-tts}/bin/piper \
31 --model ${model}/model.onnx \
32 -s "$SPEAKER" \
33 -f "$OUTPUT"/"$filename" >/dev/null
34
35 ((offset+=1))
36 done
37
38 ${pkgs.sox}/bin/sox "$OUTPUT"/*.wav "$OUTPUT"/all.wav
39 cat "$OUTPUT"/all.wav
40 '';
41in
42{
43 environment.systemPackages = [
44 tts
45 ];
46}