From ca0af132056ba879da751c42b1f99e2da4dfb8f3 Mon Sep 17 00:00:00 2001
From: Garry Proshian <98213116+proshian@users.noreply.github.com>
Date: Wed, 30 Jul 2025 14:04:18 +0300
Subject: [PATCH] Fix: migrate from `ndarray.tostring` to `tobytes`
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The `ndarray.tostring()` method was deprecated in NumPy 1.19.0 and
completely removed in NumPy 2.3. Since `tobytes()` has been the
recommended replacement since 1.9.0 (with identical functionality),
this change ensures compatibility with newer NumPy versions.

The change:
- Maintains the exact same behavior
- Future-proofs the code against NumPy ≥2.3
---
 sphfile/sphfile.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sphfile/sphfile.py b/sphfile/sphfile.py
index 6ab55dd..1075526 100644
--- a/sphfile/sphfile.py
+++ b/sphfile/sphfile.py
@@ -128,7 +128,7 @@ def write_wav(self, filename, start=None, stop=None):
                 data = self.time_range(start, stop)
             else:
                 data = self.content
-            fh.writeframes(data.tostring())
+            fh.writeframes(data.tobytes())
         return filename
 
     def write_sph(self, filename, start=None, stop=None,extra_headers=None):