From 1362b50bfbf2b51423a9fbcad40e161a002a53b3 Mon Sep 17 00:00:00 2001
From: Alexandre Lissy <lissyx@lissyx.dyndns.org>
Date: Wed, 26 Sep 2018 17:36:03 +0200
Subject: [PATCH] Enforce same sox options as libsox for C++ client

Fixes #1594
---
 native_client/javascript/client.js | 15 ++++++++++++++-
 native_client/python/client.py     |  2 +-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/native_client/javascript/client.js b/native_client/javascript/client.js
index 5c7acdd939..3f6c78ac32 100644
--- a/native_client/javascript/client.js
+++ b/native_client/javascript/client.js
@@ -73,7 +73,20 @@ function bufferToStream(buffer) {
 
 var audioStream = new MemoryStream();
 bufferToStream(buffer).
-  pipe(Sox({ output: { bits: 16, rate: 16000, channels: 1, type: 'raw' } })).
+  pipe(Sox({
+    global: {
+      'no-dither': true,
+    },
+    output: {
+      bits: 16,
+      rate: 16000,
+      channels: 1,
+      encoding: 'signed-integer',
+      endian: 'little',
+      compression: 0.0,
+      type: 'raw'
+    }
+  })).
   pipe(audioStream);
 
 audioStream.on('finish', () => {
diff --git a/native_client/python/client.py b/native_client/python/client.py
index e9a1029adb..7becb3e0aa 100644
--- a/native_client/python/client.py
+++ b/native_client/python/client.py
@@ -41,7 +41,7 @@
 N_CONTEXT = 9
 
 def convert_samplerate(audio_path):
-    sox_cmd = 'sox {} --type raw --bits 16 --channels 1 --rate 16000 - '.format(quote(audio_path))
+    sox_cmd = 'sox {} --type raw --bits 16 --channels 1 --rate 16000 --encoding signed-integer --endian little --compression 0.0 --no-dither - '.format(quote(audio_path))
     try:
         output = subprocess.check_output(shlex.split(sox_cmd), stderr=subprocess.PIPE)
     except subprocess.CalledProcessError as e: