Update README.md

Author: Plachtaa

README.md

@@ -15,7 +15,7 @@ Command line inference:
 python inference.py --source <source-wav> \
 --target <referene-wav>
 --output <output-dir>
---diffusion-steps 10
+--diffusion-steps 25
 --length-adjust 1.0
 --inference-cfg-rate 0.7
 --n-quantizers 3
@@ -24,7 +24,7 @@ where:
 - `source` is the path to the speech file to convert to reference voice
 - `target` is the path to the speech file as voice reference
 - `output` is the path to the output directory
-- `diffusion-steps` is the number of diffusion steps to use, default is 10, use 50~100 for best quality
+- `diffusion-steps` is the number of diffusion steps to use, default is 25, use 50~100 for best quality, use 4~10 for fastest inference
 - `length-adjust` is the length adjustment factor, default is 1.0, set <1.0 for speed-up speech, >1.0 for slow-down speech
 - `inference-cfg-rate` has subtle difference in the output, default is 0.7
 - `n-quantizers` is the number of quantizers from FAcodec to use, default is 3, the less quantizer used, the less prosody of source audio is preserved  
@@ -52,4 +52,4 @@ Then open the browser and go to `http://localhost:7860/` to use the web interfac
 - 2024-09-14:
     - Updated v0.2 pretrained model, with smaller size and less diffusion steps to achieve same quality, and additional ability to control prosody preservation
     - Added command line inference script
-    - Added installation and usage instructions
+    - Added installation and usage instructions